Brands

Analytical Balance

<h2>What Are Analytical Balances?</h2>
&nbsp;
An analytical balance is a high-precision weighing instrument that measures mass to a resolution of 0.1 mg (0.0001 g), one tenth of a milligram. The weighing mechanism uses electromagnetic force restoration (EMFR): the weighing pan is suspended by an electromagnet that applies just enough force to maintain the pan in a fixed reference position; the current required to restore this position is proportional to the mass placed on the pan, providing extremely high accuracy and repeatability across the full capacity range. A glass or polycarbonate draft shield enclosing the weighing pan prevents air currents from displacing the pan and introducing measurement errors; at 0.1 mg sensitivity, an air movement of less than 0.1 m/s can produce a reading error of 0.1 mg or more. Analytical balances cover capacities from 80 g (semi-micro models, with 0.01 mg readability in some configurations) to 520 g maximum, which accommodates weighing into standard laboratory glassware, plastic weighing boats, and small containers. They are used in quantitative chemistry (stoichiometric reagent weighing for accurate molarity calculations), pharmaceutical development (API and excipient weighing), environmental analysis (gravimetric filter weighing), food science, and materials research. An analytical balance is required whenever mass accuracy at the 0.0001 g (0.1 mg) level is needed; if the protocol reports mass to three or four decimal places or requires a minimum weighing quantity specification, an analytical balance is the correct instrument.
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<h2>What you will find:</h2>
&nbsp;
<ul>
<li>Analytical balances for high-precision weighing in research, analytical, and quality control laboratories.</li>
<li>Balance series with internal or external calibration options for maintaining measurement accuracy.</li>
<li>Touchscreen analytical balances with advanced weighing functions and intuitive operation.</li>
<li><a href="https://mbpinc.net/equipments/microscopes-balances-and-analytical-equipment/laboratory-balances/analytical-balance/accessories">Analytical Balance Accessories</a>, including precision vacuum gauges for monitoring vacuum levels and supporting laboratory vacuum applications.</li>
</ul>
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<h2>How to Choose an Analytical Balance</h2>
&nbsp;
Readability and accuracy
Readability (resolution, smallest displayable increment) for standard analytical balances is 0.1 mg. Semi-micro balances with 0.01 mg readability are specified for trace weighing, where mass differences of 0.01 mg must be detected, used in pharmaceutical microformulation, impurity weighing, and environmental particulate filter gravimetry. Accuracy (how closely the displayed value matches the true mass) is related to but distinct from readability: a well-maintained, calibrated analytical balance should show repeatability (standard deviation of 10 repeat weighings) of 0.05 mg to 0.1 mg at mid-range loads.
Internal vs. external calibration
Analytical balances with internal calibration contain a motorized calibration weight that deploys automatically when triggered by a temperature change (typically 1.5 to 2 degrees C change), a scheduled time interval, or an operator command. The balance calibrates itself and documents the event without requiring the operator to handle external weights; the preferred configuration for regulated environments and high-throughput labs. Externally calibrated balances require the operator to place a certified external weight on the pan and initiate calibration manually, appropriate for lower-frequency calibration schedules and labs where calibration is an explicitly documented QC step.
Draft shield design
Motorized sliding glass doors that open automatically when a sample is placed near the sensor and close after removal reduce the time the draft shield is open, minimize drafts around the pan during the stability period, and improve operator ergonomics. Manual sliding or hinged doors require the operator to open and close the shield for each weighing, adequate for moderate use but slower in high-throughput environments. Confirm that the door opening dimensions (width and height of the access openings) are sufficient for the weighing vessels used in your workflow.
Capacity and sample vessel compatibility
Choose capacity based on the maximum combined mass of the sample plus any tare container placed on the pan. For analytical chemistry, weighing reagents in 50 mL beakers or weighing boats, 200 g capacity covers most scenarios. For pharmaceutical weighing of larger API or excipient batches, a 520 g capacity with 0.1 mg readability is specified. Never exceed the stated maximum capacity of an analytical balance; even brief overloading can permanently damage the electromagnetic force restoration mechanism.
GLP and GMP compliance features
Analytical balances for regulated pharmaceutical and food testing environments require GLP/GMP compliance features: automatic time and date stamping of each weighing record; user login and operator ID in the printout; balance identification code; calibration status and last calibration date; minimum sample weight display (calculated from balance performance and the USP minimum weight requirement); and connectivity for data export to a LIMS or validated computer system. Confirm that the software and interface meet the regulatory requirements of the intended use.
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<h2>Specifications Context</h2>
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The minimum weighing quantity (MWQ) for an analytical balance is the minimum sample mass that can be weighed with an acceptable relative uncertainty, typically defined as 1000 times the standard deviation of repeatability, per USP 41 chapter 41 and OIML R 111 guidance. For a balance with 0.05 mg standard deviation, the minimum weighing quantity is 50 mg. Samples below this mass have a relative weighing error that exceeds the acceptable limit (commonly 0.1% relative uncertainty). Confirm the balance's MWQ specification for your smallest sample masses, and document this parameter in the balance qualification records for GLP and GMP environments.
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To discuss product availability or get selection guidance,&nbsp;<a href="https://mbpinc.net/contact-us">contact the MBP team</a>.

GBT-164C-Group-GBT Series Balance Brochure

Advanced Touch Display Analytical & Precision Balances Specifications

GBT Touchscreen Analytical Balance Series - Internal Calibration

The GBT-164C by Globe Scientific is a 160 g × 0.1 mg touchscreen analytical balance with internal motorized calibration, a color touch display, touch-free operation, and RS232/USB/Ethernet connectivity. Backed by a 5-year replacement guarantee.

Manufacture

Balance, Analytical, Touchscreen, 160g x 0.1mg, Internal Calibration, 100-240V, 50-60Hz

Balance, Analytical, Touchscreen, 160g X 0.1mg, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Analytical, Touchscreen, 220g x 0.1mg, Internal Calibration, 100-240V, 50-60Hz

Balance, Analytical, Touchscreen, 220g X 0.1mg, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Analytical, Touchscreen, 82/220g x 0.01/0.1mg, Internal Calibration, 100-240V, 50-60Hz

Balance, Analytical, Touchscreen, 82/220g X 0.01/0.1mg, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Analytical, Touchscreen, 310g x 0.1mg, Internal Calibration, 100-240V, 50-60Hz

Balance, Analytical, Touchscreen, 310g X 0.1mg, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Analytical, Touchscreen, 520g x 0.1mg, Internal Calibration, 100-240V, 50-60Hz

Balance, Analytical, Touchscreen, 520g X 0.1mg, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Precision Balance

<h2>What Are Precision Balances?</h2>
&nbsp;
A precision balance (also called a top-loading balance or semi-analytical balance at the finer end of the range) is an electronic weighing instrument that provides mass readability of 1 mg (0.001 g) to 0.1 g, with maximum capacities ranging from 120 g to 6 kg. They use either electromagnetic force restoration (EMFR) at the finer-readability end (1 mg to 0.1 mg) or strain-gauge load cells at the coarser end (0.01 g to 0.1 g), and most feature an open top-loading design without a full draft shield, distinguishing them from analytical balances. At 1 mg readability, some precision balance models include a partial windscreen (a three-sided partial enclosure) or removable draft shield panels; models at 0.01 g to 0.1 g readability typically operate in open-air conditions. Precision balances cover the widest range of routine laboratory weighing tasks: preparation of culture media batches in 2 to 5 L vessels (requiring 0.01 g accuracy), formulation of buffer concentrates, routine quality control check-weighing of capsules and tablets, dispensing of stock reagent aliquots, and any application where the protocol requires mass to two or three decimal places in grams without demanding the fourth decimal place (0.1 mg) of an analytical balance. A precision balance fills the gap between the 520 g capacity ceiling of a standard analytical balance and the coarse 0.1 g to 1 g readability of high-capacity bench scales; specify it when you need 1 mg to 10 mg resolution for samples up to 2 kg.
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<h2 dir="ltr">What you can find:</h2>
&nbsp;
<ul>
<li data-section-id="1vcyko4" data-start="25" data-end="110">Portable precision balances for routine laboratory and field weighing applications.</li>
<li data-section-id="1ry14v8" data-start="111" data-end="193">High-capacity precision balances for weighing larger samples and bulk materials.</li>
<li data-section-id="19ie366" data-start="194" data-end="295">Precision balances with internal or external calibration options for reliable measurement accuracy.</li>
<li data-section-id="10kqa2z" data-start="296" data-end="384">Touchscreen precision balances with advanced weighing functions and data connectivity.</li>
<li data-section-id="1uqcy5z" data-start="385" data-end="528" data-is-last-node="">Precision balance series from leading manufacturers, including Accuris and Radwag, for research, education, and quality control laboratories.</li>
</ul>
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<h2>How to Choose a Precision Balance</h2>
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Readability and capacity: matching both parameters
Precision balance selection requires matching both readability and capacity to the application. For weighing 0.5 to 5 g samples into vials for dissolution testing (where 1 mg accuracy is needed but a 520 g capacity is insufficient for the tare container), a 600 g x 0.01 g balance is the correct choice. For preparing 500 mL to 2 L media batches where 0.01 g accuracy is adequate, a 2 kg x 0.1 g balance covers the full range. For piece counting or check-weighing of bulk tablet batches, a 3 to 6 kg x 0.1 g precision balance handles the total weight of a tray or container of units.
Draft shield options
Precision balances at 1 mg (0.001 g) readability are affected by air currents and require either a full draft shield (as found on analytical balances) or, at a minimum, a three-sided windscreen to stabilize readings. Most 1 mg readability models in the 120 g to 620 g range include a removable glass draft shield. At 0.01 g readability, most models are used open-air on the bench, as air currents introduce errors of approximately 0.01 g, within the resolution tier of the instrument. Confirm the precision balance's recommended environmental conditions (maximum air velocity for stable readings) for the intended installation location.
Internal vs. external calibration
Precision balances with built-in internal calibration (a motorized weight that deploys automatically on temperature change or user command) maintain calibration between periodic external verification intervals without operator intervention. This is important in high-use labs where temperature fluctuates by 2 to 3 degrees C during the day. External calibration balances are lower cost and suitable when calibration is performed on a defined schedule (daily or weekly before use) using a certified reference weight. Most precision balance models at 0.01 g readability and above are available in both internal and external calibration configurations.
Advanced weighing functions
Research-grade precision balances include built-in weighing functions beyond standard mass measurement: piece counting (estimating the number of identical parts from a known sample weight); percentage deviation weighing (displaying the difference from a target mass as a percentage); formulation mode (guided dispensing of multiple ingredients to target masses with running total); and density determination (Archimedes method via an under-pan hook and optional kit). Confirm which functions are required and built in (not requiring a separate software purchase) for the intended application.
GLP features and connectivity
Precision balances for pharmaceutical QC, food testing, and accredited analytical labs require GLP documentation features: automatic printing of date, time, balance ID, operator ID, calibration status, and weighing result. RS-232 or USB output to a LIMS, balance printer, or PC is standard. For regulated environments, 21 CFR Part 11 software with an electronic audit trail and access control is available on premium models.
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<h2>Specifications Context</h2>
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Precision balance repeatability is specified as the standard deviation of 10 consecutive weighings of the same load at mid-range, typically 0.5 to 1 mg for models with 1 mg readability, and 0.01 to 0.05 g for models with 0.1 g readability. Environmental sensitivity is lower than for analytical balances: a 0.001 g precision balance in a vibration-affected environment may show repeatability of 1 to 5 mg in practice versus 0.5 mg in a stable environment. For the most demanding 1 mg-readability precision balance applications, place the balance on an anti-vibration mat and away from air vents. Pan size selection: precision balances at 1 mg to 0.01 g readability typically have pans of 130 to 200 mm; at 0.1 g readability, pans of 200 to 300 mm accommodate larger vessels.&nbsp;
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Require assistance in selecting the appropriate model? Contact the <a href="https://mbpinc.net/contact-us">MBP team</a> for a tailored quote and professional guidance.

Precision Balances

GBT-1000-Group-GBT Series Balance Brochure

GBT Touchscreen Precision Balance Series - External Calibration

GBT-1000 by GBT is a 1000 g × 1 mg precision balance with external calibration, a color touchscreen, infrared sensor controls, 11 weighing modes, and RS232/USB/Ethernet connectivity. Suited for reagent formulation, sample prep, and QC labs requiring one-milligram readability and LIMS integration.

Balance, Precision, Touchscreen, 10000g x 0.1g, External Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 10000g X 0.1g, External Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 1000g x 1mg, External Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 1000g X 1mg, External Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 200g x 0.01g, External Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 200g X 0.01g, External Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 360 x 1mg, External Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 360 X 1mg, External Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 4500g x 0.01g, External Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 4500g X 0.01g, External Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 6000g x 0.1g, External Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 6000g X 0.1g, External Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 6000g x 0.01g, External Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 6000g X 0.01g, External Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 600g x 1mg, External Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 600g X 1mg, External Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

GBT-1003C-Group-GBT Series Balance Brochure

GBT Touchscreen Precision Balance Series - Internal Calibration

GBT-1003C by Globe Scientific is a 1000 g × 1 mg precision balance with internal automatic calibration, a color touchscreen, IR sensor controls, 11 weighing modes, and RS232/USB/Ethernet connectivity. Suited for pharmaceutical QC, GMP-regulated labs, and LIMS-integrated workflows requiring hands-free calibration at 1 mg readability.

Balance, Precision, Touchscreen, 1000g x 1mg, Internal Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 1000g X 1mg, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 10100g X 0.01g, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 10100g x 0.01g, Internal Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 2100g x 0.01g, Internal Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 2100g X 0.01g, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 3000g x 1mg, Internal Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 3000g X 1mg, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 360g x 1mg, Internal Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 360g X 1mg, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 4500g x 0.01g, Internal Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 4500g X 0.01g, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 6000g x 0.01g, Internal Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 6000g X 0.01g, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 600g x 1mg, Internal Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 600g X 1mg, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Balance, Precision, Touchscreen, 8100g x 0.01g, Internal Calibration, 100-240V, 50-60Hz

Balance, Precision, Touchscreen, 8100g X 0.01g, Internal Calibration, 100-240V, 50-60Hz, Includes ISO/IEC 17025:2017 Caibration Certificate

Hematocrit Centrifuge

<h2>What Are Hematocrit Centrifuges?</h2>
&nbsp;
Hematocrit centrifuges (microhematocrit centrifuges) are specialized high-speed instruments that spin sealed capillary tubes of anticoagulated whole blood at 10,000&ndash;15,000 RPM for 3&ndash;5 minutes to measure packed cell volume (PCV)&mdash;the percentage of total blood volume occupied by red blood cells (RBCs). The centrifugal force separates blood into three distinct layers: packed RBCs at the sealed clay end, a thin buffy coat of white blood cells and platelets, and plasma at the open end. PCV is read from the RBC column height using a microhematocrit card reader and expressed as a percentage. Typical adult reference ranges are approximately 41&ndash;53% for males and 36&ndash;46% for females, although laboratories should follow their own validated reference intervals. Manual PCV values obtained by microhematocrit methods may be slightly higher than automated hematocrit measurements because of plasma trapped between packed red blood cells.
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<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
GCH-24 Hematocrit Centrifuge: High-speed unit with a 24-capillary rotor for precise separation of blood and micro-samples
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
GCH-24 Hematocrit Centrifuge Accessories: Compatible rotor and accessories for smooth and efficient operation
</li>
</ul>
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<h2>How to Choose a Hematocrit Centrifuge</h2>
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Speed Range and Spin Time
Standard microhematocrit centrifuges operate between 10,000 and 15,000 RPM, with most laboratory protocols using approximately 11,000&ndash;12,000 RPM for complete red blood cell packing. Higher-speed models may reduce processing time to 3&ndash;4 minutes, while standard systems typically use 4&ndash;5 minute cycles. Verify that the selected instrument supports your laboratory's established procedures and validation requirements.
Rotor Capacity
Many hematocrit centrifuges accommodate 24 capillary tubes in a flat grooved rotor, enabling multiple patient samples to be processed simultaneously. Compact or point-of-care models may hold 6&ndash;12 tubes. Confirm compatibility with standard microhematocrit capillary tubes, which are typically 75 mm long with an outer diameter of approximately 1.55 mm.
Safety Cover and Interlock
A secure safety lid with an interlock mechanism is an important feature, preventing rotor operation while the cover is open. Capillary tube breakage during high-speed operation can create biohazardous exposure risks, so splash-resistant materials and easy-to-clean surfaces support routine laboratory safety and maintenance procedures.
Timer and Brake Control
An integrated timer helps maintain validated spin durations and supports consistent PCV measurements. Controlled deceleration minimizes disturbance of the packed red blood cell layer after centrifugation. Laboratory personnel should always allow the rotor to stop according to the manufacturer's instructions rather than manually slowing the system.
Capillary Tube Compatibility
Verify that the rotor accepts both heparinized and plain 75 mm capillary tubes sealed with clay. Some instruments are optimized for specific tube dimensions or manufacturers, making compatibility checks important when purchasing replacement consumables or third-party supplies.
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<h2>Specifications Context</h2>
&nbsp;
The standard microhematocrit method uses 75 mm capillary tubes with approximately 1 mm internal diameter and 1.55 mm outer diameter, sealed with clay and centrifuged according to validated laboratory procedures. Heparinized tubes are commonly used for direct capillary blood collection, while plain tubes are used with anticoagulated venous blood specimens. Laboratories should follow applicable CLSI guidance and their own standard operating procedures when establishing test protocols.
Manual PCV measurements obtained by microhematocrit methods may include a small amount of trapped plasma, producing slightly higher values than automated hematology analyzers that calculate hematocrit using red blood cell count and mean corpuscular volume (MCV). In veterinary medicine, hematocrit centrifuges remain widely used because they require minimal blood volume and provide rapid diagnostic information. Modern systems frequently include digital timers, brushless motors, and enhanced safety interlocks to support reliable routine operation.
Choose the best hematocrit centrifuge for your lab today. <a href="https://mbpinc.net/contact-us" style="color: #236fa1;">Contact the expert team </a>at Molecular Biology Products Inc. now and book the perfect match.

User Manual

Flyer

GCH-24-Group-Equipment Catalog

GCH-24 Hematocrit Centrifuge

GCH-24 by Globe Scientific is a hematocrit centrifuge with a 24-capillary rotor, 200–14,000 rpm speed range, 18,620 × g maximum RCF, LCD programmable display, pulse mode, and automatic rotor detection. Suited for PCV/HCT determination, micro-separation, and capillary-tube blood analysis in clinical, veterinary, and research labs.

Speed

Maximum RCF

Speed Accuracy

Run Time

Power

Display

Acceleration Time

Braking Time

Dimensions (WxDxH)

Weight

Certifications

Centrifuge, Hematocrit, 24-place, 120v, 60Hz, US Plug (includes: 24-Place Hematocrit Rotor Kit with Lid and Reading Disk Lid)

Centrifuge, Hematocrit, 24-Place, 230v, 50Hz, UK, Plug (includes: 24-Place Hematocrit Rotor Kit with Lid and Reading Disk Lid)

Centrifuge, Hematocrit, 24-Place, 230v, 50Hz, EU Plug (includes: 24-Place Hematocrit Rotor Kit with Lid and Reading Disk Lid)

GCH-24 Hematocrit Centrifuge Accessories

Hematocrit Rotor for use with GCH Series Hematocrit centrifuge, 24 place, includes lid and reading disk, 12000rpm max

Rotor for use with GCH-24 Series Hematocrit Centrifuges, with Lid, Fixing Clips and O-Ring, 14000rpm max, 24-Place for 1.5mL and 2.0mL Microcentrifuge Tubes

Microcentrifuges

<h2>What Are Microcentrifuges?</h2>
&nbsp;
Microcentrifuges are compact, high-speed benchtop centrifuges designed specifically for 0.2&ndash;2.0 mL microtubes and PCR strips, operating at 10,000&ndash;21,000 &times;g in a fixed-angle rotor. They are the primary centrifugation instrument in molecular biology, biochemistry, and clinical molecular diagnostics labs: nucleic acid pellet formation after ethanol precipitation, spin-column DNA/RNA extraction and PCR cleanup steps (typically specified at 10,000&ndash;16,000 &times;g for 30&ndash;60 seconds), cell debris clearance from lysates, protein precipitation supernatant recovery, and brief sample clarification before downstream analysis. Standard benchtop microcentrifuges reach 14,000&ndash;15,000 RPM (16,000&ndash;21,000 &times;g), while high-speed models reach up to 21,000 RPM and approximately 31,000 &times;g. Refrigerated variants maintain 0&ndash;4&deg;C for temperature-sensitive workflows.
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<h2>What You Will Find:</h2>
&nbsp;
<ul>
<li>High-Speed Microcentrifuges: For faster sample processing</li>
<li>Refrigerated Microcentrifuges: For temperature-sensitive handling</li>
<li>Benchtop Microcentrifuge Systems: For routine lab working</li>
<li>5D Digital Microcentrifuge: With customizable time and speed options</li>
<li>Mini Microcentrifuges: Compact units for rapid spin-down tasks</li>
<li>MC-24 High-Speed Microcentrifuge: Features touch screen control and high speed</li>
<li>Microplate Centrifuges: Developed for PCR plates and strip formats</li>
<li>Microcentrifuge Accessories: For expanded tube flexibility and compatibility</li>
</ul>
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<h2>How to Choose a Microcentrifuge</h2>
&nbsp;
Maximum RCF vs. Protocol Requirements
Most spin-column kit protocols specify 10,000&ndash;16,000 &times;g. A standard microcentrifuge reaching 14,000&ndash;16,000 &times;g covers these requirements. If your lab performs alcohol-precipitation DNA/RNA pelleting (12,000&ndash;16,000 &times;g) or virus concentration steps (20,000+ &times;g), choose a model reaching at least 16,000 &times;g. High-speed models reaching 21,000&ndash;31,000 &times;g are available for specialized applications.
Rotor Tube Positions and Capacity
Most microcentrifuge rotors hold 12&ndash;24 &times; 1.5/2.0 mL tubes per run. Laboratories processing larger batches benefit from 24-position rotors, while smaller research groups may find 12-position models sufficient. Confirm that adapters for 0.5 mL and 0.2 mL tubes are available if required by your workflows.
Refrigerated vs. Ambient Temperature
Refrigerated microcentrifuges are recommended for RNA extraction, protein stability studies, cell viability applications, and any protocol requiring 4&deg;C centrifugation. Standard room-temperature models are suitable for routine DNA extraction and PCR cleanup procedures.
Noise Level and Footprint
Modern brushless DC motor microcentrifuges typically operate at &le;52 dB, making them quieter than older brush-motor systems. Most units occupy 200&ndash;300 mm of bench width, so confirm that sufficient clearance is available when the lid is fully open.
Safety Features
Essential safety features include lid-lock mechanisms, imbalance detection, and over-speed protection. Laboratories handling infectious materials should verify that aerosol-tight sealed rotor lids are available for the selected model.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
The standard spin-column step in most commercial DNA/RNA extraction kits specifies 10,000&ndash;16,000 &times;g for 30&ndash;60 seconds. Always confirm the rotor's maximum RCF from manufacturer specifications, since RPM values alone do not account for differences in rotor radius.
Microcentrifuge rotors are typically fixed-angle designs positioned at approximately 45&deg;, providing efficient pelleting and short sedimentation paths. Aerosol-tight sealed lids allow safe handling of BSL-2 samples and other applications requiring biocontainment. Modern brushless DC motors offer quieter performance, improved speed accuracy, and longer service intervals than legacy brush-motor systems.
Your search for high-performance microcentrifuges is over. <a href="https://mbpinc.net/contact-us">Contact now</a> with the expert team at Molecular Biology Products Inc. and get the right microcentrifuge for your lab today.

Microcentrifuge

Product Literature

GCM Series Centrifuges

GCM Microcentrifuge Series

GCM-MC by Globe Scientific is the GCM Series high-speed microcentrifuge line, available as the GCM-12 (12-place, 500–15,000 rpm, 15,100 × g) and GCM-24 (24-place, 200–15,000 rpm, 21,380 × g). Both offer variable speed control, pulse operation, door interlock, and programmable run times to 99 minutes, with noise below 54 dB and a 2-year warranty. Available from MBP for labs across the USA and Canada.

Centrifuge, Micro, 12-Place, High Speed, 120v - 240v, 50/60Hz, US, UK, EU Plugs (Includes: 12-Place Rotor for 1.5mL and 2.0mL Microcentrifuge Tubes)

Centrifuge, Micro, 24-Place, High Speed, 120v, 60Hz, US Plug (Includes: 24-Place Rotor with Lid for 1.5mL and 2.0mL Microcentrifuge Tubes #MC-24-2ML)

Centrifuge, Micro, 24-Place, High Speed, 230v, 50Hz, UK Plug (Includes: 24-Place Rotor with Lid for 1.5mL and 2.0mL Microcentrifuge Tubes #MC-24-2ML)

Centrifuge, Micro, 24-Place, High Speed, 230v, 50Hz, EU Plug (Includes: 24-Place Rotor with Lid for 1.5mL and 2.0mL Microcentrifuge Tubes #MC-24-2ML)

<h2 dir="ltr">What Are Adenoviral Control &amp; Reporter Constructs?</h2>
 Adenoviral over-expression experiments typically include matched control constructs that use the same vector backbone, promoter configuration, and production workflow as the experimental construct, and are packaged and purified under equivalent conditions. This helps account for vector-related and adenovirus-associated innate immune responses that can influence cellular readouts independently of the transgene. Using appropriate null or reporter controls is essential for accurate interpretation of adenoviral transduction and expression data. Choose the tools that support accurate data interpretation.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
GFP Adenovirus Reporters: confirm transduction visually using high-titer viral particles expressing green fluorescent protein
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
Beta-Galactosidase (LacZ) Adenoviruses: &beta;-gal markers derived from E. coli for standardized colorimetric and histochemical assays.
</li>
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pShuttle-LacZ Control Vectors: produce recombinant adenoviruses expressing LacZ.
</li>
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Null Adenovirus Controls: empty viral particles for assessment of non-specific cellular responses during gene delivery.
</li>
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CMV Null Adenoviruses: used to identify promoter-specific metabolic effects. Contains CMV promoter without a transgene.
</li>
</ul>
<h2 dir="ltr"> How to Choose Adenoviral Control &amp; Reporter Constructs</h2>
 Empty Vector Matching An empty vector control &mdash; identical backbone, promoter, and packaging as the experimental adenoviral construct, with no transgene insert &mdash; establishes the baseline for adenoviral delivery effects independent of the over-expressed gene. Fluorescent Reporter Selection GFP and RFP fluorescent reporters allow tracking of transduction efficiency by microscopy or flow cytometry, matching the promoter configuration of experimental constructs. Luciferase Reporter Format Firefly luciferase and Renilla luciferase provide quantitative bioluminescent readouts; secreted NanoLuc reporters allow sampling of culture supernatant for repeated, non-destructive measurements over a time course. Immune Activation Considerations Because adenoviral delivery activates innate immune sensing in transduced cells independently of any transgene, an identical-backbone control is essential to distinguish transgene-specific effects from generalised adenoviral response. Production Workflow Matching Controls should be produced, packaged, and purified using the same protocol and timeline as experimental constructs to avoid batch-to-batch variability confounding comparisons. 
<h2 dir="ltr"> Specifications Context</h2>
 Adenoviral delivery can activate innate immune sensing in transduced cells, altering gene expression independently of the transgene; therefore, matched controls with the same Ad5 backbone and promoter configuration are required for valid interpretation of adenoviral over-expression experiments. MBP adenoviral control and reporter constructs include GFP adenovirus, &beta;-gal (LacZ) adenovirus, and null adenovirus systems, supporting qualitative and quantitative assessment of transduction efficiency. Using control and experimental constructs produced under consistent conditions reduces variability that can confound downstream comparisons across treatment groups. Recording vector identity and batch information supports reproducibility and troubleshooting. Product availability reflects MBP&rsquo;s catalogue as of mid-2026. 
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<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP today for the selection of matched adenoviral control and reporter constructs for your workflow.

Control/Reporter

Lentiviral Vector Amplification Protocol

AAV Infection Guideline

AAV Packaging Protocol

Selection-Drug Killing Curve

Lentivector Packaging Protocol

Lentivirus Infection Protocol

GFP Adenovirus

Unit Quantity

Vector Map

Titer 

Storage Condition

Shipping Condition

<h2 dir="ltr">What Are Lentiviral Control &amp; Reporter Constructs?</h2>
 Rigorous experimental design requires matched controls that enter the same delivery workflow as the test construct. Lentiviral control and reporter constructs use the same vector backbones, promoters, and packaging systems as experimental vectors &mdash; ensuring observed differences between treated and control cells reflect genuine biological effects rather than artefacts of the delivery process.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
<li dir="ltr" aria-level="1"><a href="https://mbpinc.net/reagents/dna/cloning-services-products/lentivirus/over-expression/control/reporter/luciferase-reporter">Luciferase Reporters: </a>for reliable assay validation using selective promoter-specific vectors, fluorescent reporters, dual-reporter systems, and background control</li>
<li data-section-id="644n3l" data-start="108" data-end="253">Fluorescent Reporter Controls: GFP and RFP lentiviral vectors and viruses for monitoring transduction efficiency and transgene expression.</li>
<li data-section-id="19809zr" data-start="255" data-end="399">Blank Control Vectors &amp; Viruses: Empty lentiviral backbones for negative controls, promoter evaluation, and custom construct development.</li>
<li data-section-id="112pumm" data-start="401" data-end="569">Promoter &amp; UTR Reporter Systems:&nbsp; Reporter vectors designed for promoter activity and regulatory element analysis, including promoter and 5&prime; UTR reporter formats.</li>
<li data-section-id="1j5a9h3" data-start="571" data-end="736">Selectable Marker Controls: Control constructs with puromycin, neomycin, hygromycin, and blasticidin resistance markers for selection and workflow validation.</li>
</ul>
<h2 dir="ltr"> How to Choose Control &amp; Reporter Constructs</h2>
 Control Type Needed Empty vector controls carry only the selection marker (puromycin, blasticidin, or hygromycin resistance) without a gene of interest, providing the baseline reference for overexpression or knockdown experiments. Fluorescent Reporter Channel GFP and RFP lentiviral reporters allow real-time monitoring of transduction efficiency by flow cytometry or fluorescence microscopy, matching the experimental construct's promoter for an accurate expected-expression reference. Luciferase Reporter Pairing Firefly luciferase (P. pyralis) and Renilla luciferase (R. reniformis) are the two most commonly paired reporters; because they use different substrates (D-luciferin and coelenterazine, respectively), both signals can be measured sequentially from the same sample. Promoter-less Baseline A promoter-less dual luciferase control vector provides a no-promoter baseline against which promoter-driven reporter constructs are normalised &mdash; useful for establishing background signal levels. Vector Backbone Matching Using a matched vector backbone ensures observed differences between experimental and control cells are due to the transgene, not differences in vector, promoter strength, integration preference, or selection marker. 
<h2 dir="ltr"> Specifications Context</h2>
 Because lentiviral integration is heritable, transduced cells maintain stable reporter gene expression across cell divisions &mdash; stable luciferase or GFP reporter cell lines generated this way are widely used in drug screening, pathway activation assays, and long-term in vivo imaging. Through ABM, MBP can supply promoter-reporter lentiviral constructs covering human and mouse promoters, driving firefly luciferase or GFP expression, as plasmid DNA or pre-packaged particles. Both plasmid and pre-packaged formats are available for immediate dispatch, with institutional account pricing available for core facilities. Core facilities managing reporter constructs across multiple research groups often standardise on a small set of validated control vectors to simplify inventory and ensure consistency across projects.&nbsp; 
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<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP today to get high-quality lentiviral control/reporters for your lab.

GFP Control Lentivector (Puro)

Gene Name

System

Insert Size

Vector Size

pLenti-GFP Control Virus, LV006

GFP Control Lentivirus (Neo)

Titer

Note

Caution

GFP Control Virus (Puro) - LV095

GFP Control Lentivirus (Puro)

<h2>What are Bioluminescence Assays?</h2>
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Bioluminescence assays use luciferase enzymes to convert specific substrates into light, producing a highly sensitive readout for gene expression studies or cell viability measurements. In ATP-based systems, light output correlates with cellular ATP levels and therefore cell viability.
Firefly luciferase uses luciferin along with ATP, magnesium, and oxygen to generate a green/yellow signal with a decay time of roughly 12 minutes. Renilla luciferase uses coelenterazine and oxygen, producing a faster-decaying blue signal and not requiring ATP.
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<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Luciferase Assay Systems: High-performance kits like the Luciferase Assay Kit (G287), designed for rapid, flash-type bioluminescence detection that provides a direct and sensitive measure of gene induction.
</li>
<li dir="ltr" aria-level="1">
Fluorescent Control Proteins: Premium GFP Purified Protein (000033P) available as a reliable internal standard or calibration marker to validate transfection efficiency and protein localization across diverse imaging platforms.
</li>
</ul>
&nbsp;
<h2>How to Choose a Bioluminescence Assay System</h2>
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Decide Between Single and Dual-Reporter Designs
Dual-reporter systems combine a test luciferase with a constitutively expressed control luciferase, allowing normalization for variability in transfection efficiency, cell number, and viability.
Choose NanoLuc for Maximum Sensitivity
NanoLuc is an engineered 19 kDa luciferase that produces approximately 100&ndash;150&times; brighter signal than firefly or Renilla systems and uses furimazine as its substrate.
Match Substrate and Cofactor Requirements
Firefly luciferase requires luciferin, ATP, Mg2+, and oxygen, while Renilla luciferase requires coelenterazine and oxygen only, which is important when ATP levels are part of the experimental variable.
Consider Destabilized Reporters for Faster Response
Destabilized luciferase variants have shorter intracellular half-lives, allowing more rapid detection of transcriptional changes with reduced signal lag.
Use ATP-Based Assays for Viability
ATP-based bioluminescence assays measure cellular viability rather than gene expression, as light output reflects ATP levels in metabolically active cells.
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<h2>Specifications Context</h2>
&nbsp;
The Dual-Luciferase Reporter system combines firefly and Renilla luciferase to allow sequential measurement using a luciferase inhibitor for normalization of experimental variability.
As of 2026, NanoLuc-based systems are increasingly used beyond traditional reporter gene assays, including protein interaction and target engagement studies due to their high brightness and low background.
Enhance your signal detection&mdash;<a href="https://mbpinc.net/contact-us">contact the MBP team</a> today for a quote on our professional bioluminescence solutions.

Bioluminescence Assays and Reagents

QC - CoA, Lot VG1010

GFP Purified Protein

<h2 dir="ltr">What Are Protein Vector Control &amp; Reporter Constructs?</h2>
 Successful protein over-expression depends on knowing your starting point. Control and reporter vectors provide the experimental baseline against which the performance of experimental protein expression constructs is measured &mdash; confirming transfection efficiency, assessing promoter strength, or validating a new expression system.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li data-section-id="jtohhd" data-start="2388" data-end="2536">Blank-Control Protein Vector (PV001): Empty protein expression control vector for use as a baseline control in protein expression experiments.</li>
<li data-section-id="ker4sd" data-start="2537" data-end="2674">Blank-Control Protein Vector (PV002): Blank-control expression vector for comparative studies and expression workflow optimisation.</li>
<li data-section-id="dmrpow" data-start="2675" data-end="2807">GFP-Control Protein Vector (PV003): GFP-expressing control vector for monitoring transfection performance and gene expression.</li>
</ul>
<h2 dir="ltr"> How to Choose Control &amp; Reporter Constructs</h2>
 Reporter Signal Type GFP/copGFP (fluorescence) suits transfection efficiency monitoring via FACS or microscopy. Firefly luciferase, Renilla luciferase, and NanoLuc (bioluminescence) suit promoter activity and pathway assays via plate reader. &beta;-galactosidase (LacZ) provides a colorimetric readout. Empty Vector Matching An empty vector control uses the same backbone, promoter, and selection marker as the experimental construct, with no gene of interest inserted &mdash; establishing the baseline effect of transfection, selection pressure, and promoter activity on cell physiology. Sensitivity Requirements NanoLuc (~19 kDa, furimazine substrate) is approximately 150-fold brighter than firefly or Renilla luciferase, useful for low-expression promoter studies and sensitive detection in small cell numbers; its small size also minimises steric interference as a fusion tag. Dual-Reporter Normalisation Paired firefly + Renilla luciferase systems allow internal normalisation per well &mdash; the Renilla reporter under a constitutive promoter corrects for differences in cell number, transfection efficiency, and lysis variability. 
<h2 dir="ltr"> Specifications Context</h2>
 A matched promoter between reporter and experimental construct ensures the reporter responds to the same transcriptional environment &mdash; differences in promoter strength between control and experimental vectors can generate misleading apparent expression differences attributable to the promoter rather than the protein of interest. NanoLuc and firefly luciferase use different substrates (furimazine vs. D-luciferin) and can be measured independently from the same sample, enabling dual-reporter assays even when the Renilla channel is occupied elsewhere. Reporter vectors can be stably integrated by antibiotic selection or lentiviral transduction to generate stable reporter cell lines for monitoring expression systems over time. Promoterless reporter backbone vectors are also available as empty cloning vehicles for inserting custom regulatory sequences. Product availability may vary. Browse the MBP control/reporter catalogue for current product information and availability. 
&nbsp;
<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP today and get high-quality control/reporter vectors for your lab.