Brands

Sample Storage Container

<h2 dir="ltr">What are Urine Collection Products?</h2>
 Urine collection products for laboratory use are containers and preservative systems designed to collect, stabilize, and transport urine specimens for urinalysis (UA), urine culture (C&amp;S), nucleic acid-based testing (NAAT for STIs), cell-free DNA (cfDNA) liquid biopsy, and 24-hour timed collections. Formats include sterile cups (30&ndash;60 mL), preservative tubes (5&ndash;50 mL), vacuum-draw urine transfer tubes, 24-hour collection containers (2&ndash;3 L), and preservative-prefilled devices for ambient-temperature stabilization of DNA, RNA, and proteins. Choose urine collection products with an active preservative when specimens cannot be processed within 2 hours of collection, when samples must be shipped to a centralized lab, or when nucleic acid integrity over 24+ hours is required.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Sterile urine collection containers for routine diagnostic sampling</li>
<li dir="ltr" role="presentation">Urine transport tubes for secure handling and transfer workflows</li>
<li dir="ltr" role="presentation">Preservative urine tubes for culture and urinalysis stability</li>
<li dir="ltr" role="presentation">Midstream urine collection systems for contamination reduction</li>
<li dir="ltr" role="presentation">24-hour urine collection containers for metabolic testing workflows</li>
<li dir="ltr" role="presentation">Leak-resistant screw-cap urine tubes for safe transport</li>
<li dir="ltr" role="presentation">Graduated urine containers with volume markings for easy measurement</li>
<li dir="ltr" role="presentation">Pediatric urine collection solutions for low-volume sampling</li>
<li dir="ltr" role="presentation">Closed-system urine transfer devices for reduced exposure handling</li>
<li dir="ltr" role="presentation">General laboratory urine collection consumables for research use</li>
</ul>
<h2 dir="ltr"> How to Choose Urine Collection Products</h2>
 Application: Culture vs. NAAT vs. Nucleic Acid Research For culture (C&amp;S), use sterile cups or boric acid preservative tubes. For NAAT (STI panels for Chlamydia, Gonorrhea), use sterile cups or manufacturer-validated transfer tubes; confirm with your platform's IFU (e.g., Hologic Aptima Combo 2 uses a specific urine transport tube). For nucleic acid research (cfDNA, RNA, protein), use dedicated urine preservative tubes (Norgen, Streck) that stabilize analytes for up to 72 hours at room temperature. Volume: Random vs. 24-Hour Collection Random midstream urine (10&ndash;30 mL) is adequate for urinalysis, culture, and NAAT. Timed 24-hour collections (total volume 500&ndash;3000 mL) require large-volume containers with the appropriate preservative for the ordered panel. Mixing 24-hour containers with different preservatives is a common error&mdash;verify the correct preservative type with the laboratory before dispensing to the patient. Preservative Compatibility Boric acid tubes maintain bacterial counts for culture up to 24 hours at room temperature. Boric acid is NOT compatible with NAAT workflows&mdash;it inhibits PCR. For NAAT, use plain sterile containers or manufacturer-specific transfer tubes. For liquid biopsy cfDNA, Streck Cell-Free DNA Urine Preservative maintains cell integrity and prevents genomic DNA contamination for up to 72 hours. Sterility All urine containers intended for culture must be certified sterile. Containers for NAAT must be certified DNase-free and RNase-free to prevent nucleic acid contamination from the container. Confirm sterility and nuclease-free certification in the manufacturer's datasheet before use in molecular workflows. Automated Compatibility For high-throughput labs using automated urine analyzers (Sysmex UF-5000, Siemens CLINITEK), confirm that the collection tube format and cap design are compatible with tube-handling robotics. Copan UriSponge&reg; (FDA-cleared October 2024) is a boric-acid-free device validated for direct loading on WASP&reg; automation systems. 
&nbsp;
<h2 dir="ltr">Specifications Context</h2>
 Standard urine collection cups are manufactured from transparent polypropylene (PP) or polystyrene (PS) with wide-mouth, screw-cap lids. Sterile cups rated for culture meet ISO 7886 and are non-pyrogenic. Boric acid preservative tubes contain approximately 1.8% boric acid, stabilizing bacterial counts by creating a bacteriostatic environment. Norgen urine preservative tubes (5&ndash;50 mL, available in multiple sizes) stabilize DNA, RNA, microRNA, and protein from fresh urine for over 2 years at room temperature per manufacturer validation data. As of 2026, liquid biopsy studies using urine cfDNA routinely use Streck Cell-Free DNA Urine Preservative (3 mL per 30 mL urine) as the standard stabilization protocol in published clinical research protocols. 
Need help picking the right urine collection setup? <a href="https://mbpinc.net/contact-us">Contact MBP</a>, and we&rsquo;ll help you sort it out fast. No confusion, just the right fit for your workflow.

Urine Collection Products

Tubes, Caps & Racks Catalog

TDS-6148

Specimen Collection Cups, 5oz, 100/Sleeve, 25 Sleeves/Unit, CS/2500

Globe Scientific 6208: 5 oz specimen collection cup, high-volume sleeve packaging: 100/sleeve, 25 sleeves/case (2,500 cups total per case).

Manufacture

Specimen Container, 4oz, with Attached Thermometer Strip, Separate 1/4-Turn Red Screwcap, Non-Sterile, PP, Graduated, Bulk, CS/500

5916 by Globe Scientific is a 4&#160;oz (100&#160;mL graduated) polypropylene specimen container with an attached liquid crystal thermometer strip and a separate 1/4-turn ergonomic red screwcap. Non-sterile, latex-free, frosted writing area. Designed for urine drug testing and urinalysis collection where post-collection temperature verification is required. Sold in cases of 500.

Specimen Container, 5oz. with Separate Snap Cap, PP, Graduated, CS/300

Specimen container 5917 — 5 oz polypropylene with a separate leak-resistant snap cap, molded graduation marks, and a large writing area. 300 per case. For urine collection, urinalysis, urine culture, and drug screening in clinical and reference laboratory settings.

<h2 data-section-id="3d1466" data-start="0" data-end="47">What are cell culture buffers and solutions?</h2>
&nbsp;
Cell culture buffers and balanced salt solutions are isotonic solutions used to wash, dilute, transport, and temporarily maintain cells outside of complete growth media. Unlike culture media, these solutions do not contain the nutrients and growth factors required for cell proliferation. Instead, their primary role is to maintain physiological pH and osmotic balance while protecting cells from stress during handling and experimental procedures.
The most commonly used cell culture buffers include PBS (Phosphate-Buffered Saline), DPBS (Dulbecco's Phosphate-Buffered Saline), HBSS (Hank's Balanced Salt Solution), and EBSS (Earle's Balanced Salt Solution). These solutions are widely used in cell washing, passaging, tissue dissociation, sample preparation, immunoassays, and short-term cell maintenance.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Standard Isotonic Buffers to wash cells, maintain osmotic balance, and dilute reagents.</li>
<li dir="ltr" role="presentation">Biological Buffering Agents for metabolic support and pH maintenance.</li>
<li dir="ltr" role="presentation">Cell Dissociation &amp; Neutralizing Reagents maintain high cell viability and are used for cell recovery, detachment, and passaging</li>
<li dir="ltr" role="presentation">Surface Coating &amp; Matrix Solutions with high-grade gelatin for improved cell attachment.</li>
<li dir="ltr" role="presentation">Insulin-Transferrin-Selenite (ITS), Bovine Serum Albumin (BSA), and high-purity Holo-Transferrin for enhanced cell growth and viability</li>
</ul>
&nbsp;
<h2 data-section-id="1cuz7jf" data-start="1165" data-end="1216">How to choose cell culture buffers and solutions</h2>
&nbsp;
PBS vs. DPBS PBS is a simple sodium chloride/phosphate buffer solution. DPBS adds potassium chloride and may include calcium, magnesium, glucose, and pyruvate depending on formulation. The practical difference between PBS and DPBS formulations is minimal &mdash; both maintain pH 7.2-7.4 and osmolality ~280-315 mOsm/kg and are functionally interchangeable for standard washing, immunoassay, and sample preparation applications. If your protocol is sensitive to minor salt concentration differences, compare specific formulation sheets rather than assuming equivalence. &nbsp; Calcium/magnesium-free vs. calcium/magnesium-containing Calcium and magnesium facilitate cell-cell and cell-surface adhesion. Calcium/magnesium-free PBS, DPBS, or HBSS is required: before enzymatic dissociation (residual Ca/Mg inhibits trypsin, requiring more enzyme and harsher conditions &mdash; the most common cause of poor trypsinization results), for rinsing EDTA or other chelators from culture, and for minimizing cell-cell aggregation during gentle dissociation or suspension recovery. Calcium/magnesium-containing formulations support cell binding and clumping, useful for transport applications or attachment-dependent procedures. &nbsp; HBSS/EBSS vs. PBS/DPBS for short-term maintenance HBSS and EBSS include sodium bicarbonate buffering and may include glucose, providing meaningfully better short-term physiological support for cells &mdash; particularly under CO₂ atmosphere &mdash; than the simpler PBS/DPBS formulations. Use HBSS/EBSS when cells need to remain viable for a meaningful period outside complete growth media (tissue dissociation workflows, transport, short-term holding). Use PBS/DPBS for washing steps, immunoassay/Western blot dilutions, and sample preparation where osmotic balance &mdash; not metabolic support &mdash; is the requirement. &nbsp; Phenol red and glucose/pyruvate variants DPBS and HBSS are available with or without phenol red and with or without glucose/pyruvate, allowing matching to downstream applications (phenol red-free for fluorescence work; glucose/pyruvate-containing for short-term metabolic support). &nbsp; Endotoxin and quality testing Regular quality testing of balanced salt solutions includes osmolality, pH, stability, and screening for endotoxins and bacterial/fungal contamination. For immune cell handling and other endotoxin-sensitive applications, premium formulations document endotoxin levels below 0.005 EU/mL &mdash; a meaningfully tighter specification than standard research-grade buffers. &nbsp; Powder vs. liquid format Powdered balanced salt solutions are manufactured without sodium (to avoid sodium bicarbonate off-gassing during storage), requiring sodium bicarbonate addition, pH adjustment, and sterile filtration at time of preparation &mdash; following the same principle as powdered classic media.Specifications context
&nbsp;
<h2>Specifications context</h2>
&nbsp;
Most balanced salt solutions are formulated to maintain physiological conditions with a pH of approximately 7.2&ndash;7.4 and osmolality ranging from about 280&ndash;315 mOsm/kg. These properties help minimize osmotic stress and maintain cell viability during handling.
Calcium- and magnesium-free DPBS remains one of the most commonly specified buffers for cell dissociation workflows because it improves the effectiveness of trypsin and other detachment enzymes. HBSS and EBSS continue to be widely used when short-term metabolic support is required outside complete growth media.
<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP today to get high-purity buffers and solutions for your lab.

Buffers & Solutions

Buffers/Salts

MSDS

Spectinomycin dihydrochloride

Unit Quantity

Concentration

Storage Condition

Shipping condition

Cuvettes

<h2 dir="ltr">What are Cuvettes?</h2>
 Cuvettes are small, precision-dimensioned transparent vessels used to hold liquid samples in the light path of a spectrophotometer, fluorometer, or colorimeter for measurement of absorbance, transmittance, fluorescence intensity, or fluorescence polarization. The standard cuvette has a 10 mm optical path length (the distance light travels through the sample), a square or rectangular cross-section, and an internal volume of 1&ndash;4 mL. Cuvettes are manufactured in four main materials&mdash;polystyrene (PS) or polymethylmethacrylate (PMMA) plastic, optical glass, UV-grade quartz (fused silica), and IR quartz&mdash;each covering a different wavelength range. Choose plastic cuvettes for routine visible-light absorbance (380&ndash;780 nm) where disposability prevents cross-contamination; choose optical glass for reusable visible-range work (340&ndash;2,500 nm); choose UV quartz when measurements extend into the UV range below 340 nm (190&ndash;2,500 nm).
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li data-section-id="1cg0wqn" data-start="1810" data-end="1862">Spectrophotometer cuvettes for absorbance analysis</li>
<li data-section-id="vbobpt" data-start="1863" data-end="1890">Polystyrene (PS) cuvettes</li>
<li data-section-id="14z5a6i" data-start="1891" data-end="1906">PMMA cuvettes</li>
<li data-section-id="1h4vr7o" data-start="1907" data-end="1966">Analyzer-specific cuvettes for clinical chemistry systems</li>
<li data-section-id="b3k6fl" data-start="1967" data-end="1998">Standard path length cuvettes</li>
<li data-section-id="td8a19" data-start="1999" data-end="2043">Accessories for spectrophotometer cuvettes</li>
</ul>
<h2 dir="ltr"> How to Choose Cuvettes</h2>
 Material and Wavelength Range Plastic (PS/PMMA) cuvettes transmit visible light from 380&ndash;780 nm and are single-use, eliminating cleaning and cross-contamination risk. They are unsuitable for UV measurements, organic solvents, or strong acids. Optical glass cuvettes transmit 340&ndash;2,500 nm, covering the full visible and near-infrared range; Different manufacturers recommend different procedures. UV quartz cuvettes are traditionally used for DNA/RNA quantification at OD260/OD280 because they transmit UV wavelengths below 340 nm. IR quartz extends to 3,500 nm for near-IR applications. Optical Path Length The standard 10 mm path length follows the Beer-Lambert law at normal sample concentrations. Semi-micro (5 mm path) and micro-volume cuvettes (1 mm path, or internal volumes down to 10&ndash;70 &micro;L) are used for precious or limited-volume samples. The path length directly multiplies absorbance: a 1 mm cuvette gives 1/10 the absorbance of a 10 mm cuvette for the same solution &mdash; account for this in Beer-Lambert calculations. Volume: Macro vs. Semi-Micro vs. Micro Macro cuvettes (1&ndash;4 mL) are the standard for routine spectrophotometry. Semi-micro cuvettes (0.5&ndash;1.5 mL) reduce sample consumption. Micro cuvettes (10&ndash;350 &micro;L) are used when sample volume is limited; sub-micro cuvettes (10 &micro;L or less) suit precious clinical or research samples. Confirm that your spectrophotometer's beam height and aperture are compatible with the cuvette format before purchasing micro formats. Two-Window vs. Four-Window Standard cuvettes have two optically clear windows (the light-entry and exit faces) and two frosted or ribbed side walls for gripping. Four-window (all-clear) cuvettes are required for fluorescence measurements at 90&deg; to the excitation beam &mdash; the two additional clear windows allow emitted fluorescence to exit perpendicular to the excitation path. Confirm whether your instrument requires a standard or fluorescence-grade cuvette. Reusable vs. Disposable Quartz and glass cuvettes are reusable; their higher up-front cost&nbsp;is justified for low-throughput precision work or when solvents or UV wavelengths are required. Plastic cuvettes cost fractions of a cent per use and eliminate washing time in high-throughput assay workflows. Select disposable plastic for any routine colorimetric assay (Bradford, BCA, ELISA plate reader backup, OD600 bacterial growth) where wavelengths stay in the visible range. 
<h2 dir="ltr"> Specifications Context</h2>
&nbsp;
The 10 mm path length standard cuvette has internal dimensions of 10 &times; 10 mm cross-section and an internal height of approximately 45 mm. Outer dimensions are 12.5 &times; 12.5 mm, fitting all standard spectrophotometer cell holders. Window parallelism tolerance is &plusmn;0.01 mm for precision quartz cuvettes; standard optical glass cuvettes have &plusmn;0.1 mm tolerance. Light transmission through UV quartz: &gt;90% at 220 nm and &gt;85% at 200 nm. For nucleic acid quantification, a UV quartz cuvette with a minimum path length of 10 mm is required for OD 260/280 measurements; the ratio of OD260/OD280 should be 1.8&ndash;2.0 for pure DNA and 1.9&ndash;2.1 for pure RNA as a purity indicator. As of 2026, plastic disposable cuvettes remain the most cost-efficient choice for labs running &gt;50 absorbance readings per day in the visible range.
&nbsp;
Need the right fit? MBP can guide you to cuvettes that match your workflow perfectly. For institutional pricing and PO-based bulk ordering, <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">contact MBP</a>&nbsp;directly.

111117-Group-Analyzer Consumables Catalog

Spectrophotometer Cuvette, Polystyrene (PS)

The 111117 by Globe Scientific is a disposable 4.5 mL macro spectrophotometer cuvette in optical polystyrene (PS) with a 10 mm path length, wavelength range 340–800 nm, 2 clear sides, and absorption variation within ±1%. Packaged in dust-free PE foam trays, 100 per tray, 1,000 per unit. Suitable for Bradford, BCA, OD600, and general visible-range colorimetric assays. Not for UV measurements below 340 nm.

Cuvette, Spectrophotometer, Square, 4.5mL (10mm), PS, 2 Clear Sides, 100/Tray, 10 Trays/Unit, CS/1000

Cuvette, Spectrophotometer, Square, 4.5mL (10mm), PS, 2 Clear Sides, 100/Tray, 5 Trays/Unit, CS/500

Cuvette, Spectrophotometer, Square, 4.5mL (10mm), PS, 4 Clear Sides, 100/Tray, 5 Trays/Unit, CS/500

Cuvette, Semi-Micro, 2.9mL, with 2 Clear Sides, PS, 100/Tray, 10 Trays/Unit

Cuvette, Semi-Micro, 2.9mL, with 2 Clear Sides, PS, 100/Tray, 5 Trays/Unit

Cuvette, Micro, 1.5mL, with 2 Clear Sides, PS, 100/Tray, 5 Trays/Unit

<h2 dir="ltr"> What Are Lentiviral Purification &amp; Packaging Kits?</h2>
 Producing high-quality lentiviral stocks is a prerequisite for reproducible transduction experiments. Low-titer or impure virus preparations reduce transduction efficiency, introduce toxicity from residual cell debris, and compromise experimental reproducibility. Purification and packaging kits address every step from plasmid transfection through virus harvest and concentration. Vector production quality depends on efficient purification and packaging workflows. Choose the kit designed for your system.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
2nd and 3rd Generation Lentivirus Bundles combining transduction enhancers, transfection reagents, packaging mix, titer kits for complete workflows
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
2nd and 3rd Generation Packaging System Mix for standardized viral production workflows
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
DNAfectin&trade; Plus and Packaging Mix systems for enhanced transfection workflows
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
Lentivirus Promoter Blast&trade; Kit for lentiviral expression studies driven by promoters
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
SARS-CoV-2 S Protein Pseudotype Lentiviral Packaging Mix for pseudovirus-based research applications
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
Ultra-Pure Lentivirus Purification Kit for viral cleanup and concentration
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
ViralEntry&trade; Transduction Enhancer for improved transduction
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
qPCR Lentivirus Titer Kit &amp; ViralEntry&trade; Bundle for optimized transduction workflows and&nbsp; viral quantification&nbsp;
</li>
</ul>
<h2 dir="ltr"> How to Choose a Purification &amp; Packaging Kit</h2>
 Concentration Method Available PEG precipitation kits work with a standard benchtop centrifuge, producing 10&ndash;100-fold concentration &mdash; the most accessible method for labs without ultracentrifuges. Ultrafiltration (100 kDa cutoff) offers high recovery (&gt;80%) while removing small molecules and unincorporated VSV-G. Ultracentrifugation provides the highest concentration (up to 1000&times;) but requires specialised equipment. Packaging Plasmid Generation 3rd generation systems (pMDLg/pRRE + pRSV-Rev + pVSV-G) split packaging elements across three plasmids and eliminate Tat for biosafety. 2nd generation systems use a single packaging plasmid + pVSV-G; some transfer vectors with RSV promoters produce lower titers with 3rd generation packaging unless using CMV-promoter variants (pLKO.1C). Starting Volume Scale Ultrafiltration units are compatible with both small-scale (&le;20 mL) and large-scale (up to 1 L) starting volumes using appropriately sized membranes. Plasmid Transfection Ratio For 3rd generation packaging, a 4:2:1:1 ratio of transfer vector:pMDLg/pRRE:pVSV-G:pRSV-Rev has been validated to maximise titer, with 20 &micro;g transfer vector per 15 cm dish as a standard starting point. Titer Assessment Method p24 ELISA measures total viral particle content; functional transduction assays (GFP or antibiotic selection) measure infectious titer; qPCR-based RNA titration measures packaged RNA copies. Functional titer is most relevant for transduction experiments. 
<h2 dir="ltr"> Specifications Context</h2>
 Lentiviral concentration workflows commonly combine PEG precipitation, ultrafiltration, or density-gradient methods to increase viral titer without requiring ultracentrifugation. Ultrafiltration systems using 100 kDa membranes efficiently retain lentiviral particles (approximately 80&ndash;120 nm) while removing smaller contaminants and free proteins. Following concentration, viral stocks are typically aliquoted into single-use volumes and stored at &minus;80 &deg;C because infectivity decreases with repeated freeze&ndash;thaw cycles and prolonged storage above freezing temperatures. Modern 2nd- and 3rd-generation packaging systems separate essential viral functions across multiple plasmids, including a dedicated VSV-G envelope plasmid, to support safer lentiviral production workflows. Product availability reflects MBP's catalogue as of mid-2026. 
&nbsp;
<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP Inc. and get reliable lentiviral purification and packaging kits for your lab today.

Purfication & Packaging Kits

DataSheet

Selection-Drug Killing Curve

Lentivector Packaging Protocol

Lentivirus Infection Protocol

Enhanced Lentivirus Safety Features-Replication Incompetency

Suggested MOI for Common Cancer Cell Lines

Lentiviral System FAQ

Speedy Lentivirus Purification

Shipping Condition

<h2 dir="ltr"> What are Cell Culture Dishes?</h2>
 Cell culture dishes are sterile, shallow, circular polystyrene containers with a lid for growing adherent or suspension mammalian cells, bacteria, yeast, and microorganisms in a CO₂ incubator or ambient environment. TC-treated (tissue culture&ndash;treated) dishes support adherent mammalian cell monolayer growth; non-treated dishes suit suspension cells, colony counting, and bacteriological applications. Choose the dish diameter based on required cell number and downstream assay volume: 35 mm for small-scale primary culture and microscopy; 60 mm for transfection and mid-scale assays; 100 mm for routine large-scale expansion, protein isolation, and virus production; 150 mm for maximum single-vessel cell yield.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li data-section-id="zaop1j" data-start="0" data-end="134">TC-treated and sterile cell culture dishes in standard, polystyrene (PS), Diamond SureGro, gripping ring, and external grip formats.</li>
<li data-section-id="1tw8fwo" data-start="136" data-end="215">Glass bottom cell culture dishes for microscopy-based cell culture workflows.</li>
<li data-section-id="sr7dgd" data-start="217" data-end="298">Spheroid culture products, including Spheroid Dishes and Spheroid Forming Units.</li>
<li data-section-id="s6nepr" data-start="300" data-end="358">3D Cell Floater Dishes for 3D cell culture applications.</li>
<li data-section-id="4r7o73" data-start="360" data-end="422" data-is-last-node="">Multi-Insert Dishes for multi-insert culture configurations.</li>
</ul>
<h2 dir="ltr"> How to Choose Cell Culture Dishes</h2>
 Diameter and Growth Area by Application 35 mm dishes (growth area approximately 8.8 cm&sup2;, working volume 2 mL) are the standard for primary cell culture, colony counting, clonal selection, and high-resolution phase-contrast microscopy from adherent monolayers, where the small diameter matches the field of view of low-magnification objectives. 60 mm dishes (growth area approximately 21 cm&sup2;, working volume 5 mL) suit transfection experiments (calcium phosphate, lipofection, PEI) and mid-scale protein or RNA harvest. 100 mm dishes (growth area approximately 55 cm&sup2;, working volume 10 mL) are the routine format for cell expansion, large-scale transfection (AAV, lentivirus production), and whole-cell protein or nucleic acid extraction. 150 mm dishes (growth area approximately 148 cm&sup2;, working volume 20&ndash;30 mL) provide maximum cell yield from a single vessel for high-yield protein production, ChIP-seq input material, and large-scale virus production. TC-Treated vs. Non-Treated Dishes TC-treated NEST dishes have vacuum plasma&ndash;modified surfaces (contact angle &lt;10&deg;) supporting adherent mammalian cell attachment, equivalent to TC-treated T-flask surfaces. Non-treated dishes (when available) maintain the hydrophobic PS surface for suspension cell maintenance, organoid culture, and bacteriological applications. Confirm surface treatment from the product label before seeding; TC-treated and non-treated dishes are visually identical. Gripping Ring Option for 100 mm Dishes NEST Scientific 100 mm dishes are available with and without an Easy-Grip gripping loop molded into the dish wall. The gripping ring provides a secure handhold through latex or nitrile gloves in a biosafety cabinet, reducing slip-and-drop contamination events during media changes and trypsin addition for large-batch 100 mm dish workflows. For labs handling &gt;20 dishes per day, gripping ring dishes are a practical quality-of-life improvement. Optical Clarity and Microscopy NEST Scientific cell culture dishes are manufactured from 100% virgin polystyrene with a flat, distortion-free growth surface, allowing phase-contrast microscopy and standard fluorescence widefield microscopy directly in the dish without cell transfer. Numeric position marks on the dish bottom allow users to re-locate specific fields between imaging sessions. For confocal, TIRF, or super-resolution imaging requiring No. 1.5 coverglass, use glass-bottom dishes or [glass-bottom cell culture plates](mbpinc.net/consumables/cell-culture/cell-culture-plates/glass-bottom-cell-culture-plates) instead. Stackability and Incubator Efficiency NEST Scientific cell culture dishes feature a raised rim geometry and a snap-fit lid that allow stable stacking in a CO₂ incubator. Stacking feet on the lid prevent the lid from sliding and ensure the inner lid face does not contact the dish rim of the dish below &mdash; maintaining sterility of the lid's inner surface during stacking. For high-throughput cell culture labs running &gt;50 dishes simultaneously, dish stackability significantly increases effective incubator shelf utilization. 
<h2 dir="ltr"> Specifications Context</h2>
 NEST Scientific cell culture dishes are manufactured from 100% virgin polystyrene in ISO 8 (Class 10,000) cleanrooms. Vacuum plasma TC treatment is verified by water contact angle goniometry per lot (criterion: contact angle &lt;10&deg;). E-beam sterilized to SAL 10⁻⁶; certified DNase/RNase-free and non-pyrogenic per lot. Flat bottom for distortion-free phase-contrast microscopy; numeric position marks on dish floor. NEST Scientific is ISO 9001:2015, ISO 13485, and ISO 11137 certified with FDA registration and CE marking. As of 2026, NEST Scientific dishes in all four sizes are stocked by MBP. 
&nbsp;
Don&rsquo;t compromise on cultural integrity. <a href="https://mbpinc.net/contact-us">Contact the Molecular Biology Products Inc. team</a> for&nbsp;high-performance labware. Request a quote today to streamline your laboratory workflow.

Cell Culture Dishes

Spheroid Dishes

Spheroid Dish

Spheroid Dish is designed for easy culturing and counting the Spheroid. Meshes inside the well facilitate identifying and counting the spheroids. After experiment, the spheroids can be easily collected.

Spheroid Dish, PS/PE, 35X10mm, Internal Dimension 13X1mm, Steril to SAL 10-6, 15/Case

Spheroid Dish, PS/PE, 35X10mm,  Internal Dimension 25X1mm, Low-Binding Treated, Steril to SAL 10-6, 15/Case

Clinical Centrifuge

<h2>What Are Clinical Centrifuges?</h2>
&nbsp;
Clinical centrifuges separate whole blood into diagnostic components&mdash;serum or plasma, red blood cells, white blood cells, and platelets&mdash;by spinning standard blood collection tubes (5&ndash;50 mL vacutainer formats) at 300&ndash;6,000 RPM (typically 3,000&ndash;3,500 &times;g) for defined cycle times. They are the core specimen-processing instrument in clinical chemistry, hematology, immunology, coagulation, and molecular diagnostic laboratories. Standard serum separation runs at 3,000 &times;g for 10 minutes after a 30-minute clotting period; plasma preparation from anticoagulated tubes runs at 2,000&ndash;3,000 &times;g for 10&ndash;15 minutes. Clinical centrifuges used in CLIA-regulated labs must meet Clinical Laboratory Improvement Amendments performance requirements and be documented for routine calibration and maintenance.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Z207-A Clinical Centrifuge: Compact clinical centrifuge with an 8 x 15 mL rotor for routine sample processing
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Sprint&trade; Clinical Centrifuge (6H): Reliable unit designed for consistent clinical lab applications
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Sprint&trade; 8 Clinical Centrifuge: Fixed-angle rotor centrifuge for efficient sample separation
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Sprint&trade; 6H Plus Clinical Centrifuge: Swing-out rotor centrifuge for improved sample handling
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
DLAB DM0412 Clinical Centrifuge: Complete system with rotor and adapter for versatile lab use
</li>
</ul>
&nbsp;
<h2>How to Choose a Clinical Centrifuge</h2>
&nbsp;
Speed Range and Maximum RCF
Most routine clinical serum and plasma preparation requires 3,000&ndash;3,500 &times;g. Clinical centrifuges with a maximum RCF of 3,500&ndash;6,000 &times;g cover all standard blood tube protocols and allow headroom for gel separator tube requirements, which vary by manufacturer. Platelet-poor plasma preparation requires up to 10,000 &times;g, making higher-speed models appropriate for coagulation laboratories.
Rotor Type: Swing-Out vs. Fixed-Angle
Swing-out rotors produce a horizontal sediment layer perpendicular to the tube wall, simplifying serum and plasma aspiration while reducing red blood cell carryover into the supernatant. Fixed-angle rotors pellet at higher RCF per RPM and are faster for pelleting applications, although the diagonal sediment interface is less convenient for aspiration. Swing-out rotors are commonly preferred for routine blood tube processing, while fixed-angle models are often selected for higher-throughput workflows.
Tube Capacity and Format
Clinical centrifuge rotors typically hold 6&ndash;24 blood collection tube positions per run. Confirm that the rotor accommodates your required tube dimensions, including 13 mm OD tubes for 5&ndash;7 mL samples and 16 mm OD tubes for 10 mL samples, and verify adapter availability for 15 mL and 50 mL conical tubes when needed.
Refrigerated vs. Room Temperature
Refrigerated models operating between 2&ndash;8&deg;C are commonly used for coagulation factors, complement panels, cryoglobulin testing, and research specimens where analyte stability is temperature-sensitive. Room-temperature centrifuges are generally sufficient for routine chemistry and immunology workflows completed within standard processing times.
Programmable Acceleration and Deceleration
Adjustable acceleration and deceleration profiles help prevent gel barrier displacement in serum separator tubes and preserve platelet and buffy coat layers in specialized protocols. Manufacturers of gel separator tubes often specify both maximum RCF and acceleration limits, making programmable controls beneficial in high-throughput environments.
CLIA and CAP Compliance
Maintain documentation for centrifuge model numbers, serial numbers, rotor identification, and calibration verification schedules. Many laboratory quality programs include periodic speed verification using a calibrated tachometer, with records retained to support audit and accreditation requirements.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Serum separation at 3,000 &times;g for 10 minutes is a commonly referenced protocol for routine chemistry and immunology testing. Gel separator tube manufacturers, including BD Vacutainer, Greiner, and Sarstedt, publish recommended RCF ranges to support proper gel barrier migration and minimize sample rejection due to displacement. Laboratory protocols should follow the specific recommendations provided for each tube type.
RCF is calculated using the formula RCF = 1.118 &times; 10&minus;5&nbsp;&times; r &times; N2, where&nbsp;r&nbsp;is the rotor radius in millimeters and&nbsp;N is RPM. Rotor-specific calculations provide more accurate results than generic RPM conversion tables. Modern clinical centrifuges commonly feature brushless DC motors, offering quieter operation, reduced maintenance requirements, and extended service life, along with programmable acceleration and deceleration settings to support sensitive specimen processing.
Ready to upgrade your lab's performance? <a href="https://mbpinc.net/contact-us">Contact with the expert team</a> at Molecular Biology Products and find the best clinical centrifuge for your lab today.&nbsp;

Product Literature

Adapter pack for C3303-6HP, for 5ml and 7ml (12-13mm) tubes in 15ml rotors, 8/pk

12 x 15ml fixed angle rotor for Sprint™  6H Plus

Sprint™ 6H Plus Clinical Centrifuge with 6 x 15ml swing out rotor Accessories

Sprint™ 6H Plus Clinical Centrifuge with 6 x 15ml swing out rotor

C3303-6HP by Benchmark Scientific is the Sprint 6H Plus clinical centrifuge with a 6-position swing-out rotor for blood tubes up to 15 ml, 4,000 rpm / 2,504 xg max, backlit LCD, adjustable accel/decel, 20 sec-99 min timer, and imbalance detection. 115V and 230V variants available.

Speed

Capacity

Speed increment

Timer

Momentary

Dimensions

Weight

Electrical

Warranty

Sprint™ 6H Plus Clinical Centrifuge with 6 x 15ml swing out rotor, 115V

Sprint™ 6H Plus Clinical Centrifuge with 6 x 15ml swing out rotor, 230V

Adapter pack for C5000-6H and C5000-8, for 5ml and 7ml (12-13mm) tubes, 8/pk

Sprint™ 8 Clinical Centrifuge, with 8 x 15ml fixed rotor Accessories

Sprint™ 8 Clinical Centrifuge with fixed angle rotor

The Sprint™ 8 Clinical Centrifuge (C5000-8) by Benchmark Scientific runs at a fixed 3,400 RPM / 1,400 xg and separates serum or plasma from whole blood in 2–3 minutes. The 8-position fixed-angle rotor holds 15 ml conical and round-bottom tubes; the compact 21-lb unit (12 × 16 in footprint) is designed for clinical chemistry, coagulation, urinalysis, and point-of-care labs.

Sprint™ 8 Clinical Centrifuge with 8 x 15ml fixed angle rotor, 115V

Sprint™ 8 Clinical Centrifuge with 8 x 15ml fixed angle rotor, 230V

Sprint™ 8 Portable kit, 115V

Sprint™ 8 Portable kit, 230V

Adapter pack for C5000-6H and C5000-8, for 5ml and 7ml (12-13mm) tubes, 6/pk

Sprint™ 6H Clinical Centrifuge, with 6 x 10ml swing out rotor Accessories

Sprint™ Clinical Centrifuges

C5000-6H by Benchmark Scientific is the Sprint&trade; 6H clinical centrifuge with a 6-position swing-out rotor reaching 3,400 rpm (1,600 &times; g). Tube capacity is 6 &times; 10 ml standard, or 6 &times; 5/7 ml with the C5000-ADP adapter set. Timer runs 1&ndash;99 minutes; UL Listed; available in 115 V or 230 V.

Sprint™ 6H Clinical Centrifuge with 6 x 10ml swing out rotor, 115V

Sprint™ 6H Clinical Centrifuge with 6 x 10ml swing out rotor, 230V

Sprint™ 6H Portable kit, 115V

Sprint™ 6H Portable kit, 230V

<h2>What are pressing dies?</h2>
&nbsp;
Pressing dies are the precision-machined tooling inserted into a laboratory press that define the size and shape of a pressed pellet or disc, typically consisting of a cylindrical barrel, a bottom punch or anvil, a top punch, and sometimes an evacuable port. The die determines the pellet diameter, the achievable pressure per unit area at a given press force, and the surface finish quality of the pressed pellet. Standard die sizes are 13 mm for FTIR KBr pellets and 25, 32, or 40 mm for XRF pressed powder pellets, with stainless steel for most applications and tungsten carbide for trace element work where steel contamination must be avoided.
&nbsp;
<h2>What you will find:</h2>
&nbsp;
<ul>
<li>Square Easy Retrieve Dry Pressing Die Set</li>
<li>Cylindrical Easy Retrieve Dry Pressing Die Set</li>
<li>Evacuable Pellet Die Set</li>
<li>Mini Pellet Press Die Set</li>
<li>Hydraulic Press Die Accessories</li>
<li>Pellet Pressing Die Components</li>
</ul>
&nbsp;
<h2>How to choose pressing dies</h2>
&nbsp;
Match die diameter to your analytical instrument's sample holder
The 13 mm die is standard for FTIR spectrometers where the 13 mm pellet fills the aperture of the sample holder, while XRF instruments use 25, 32, or 40 mm diameter cups depending on the specific spectrometer model and cup type. Confirming the required pellet diameter from your instrument's user manual or sample cup dimensions prevents ordering the wrong die size.
Choose evacuable dies for cleaner FTIR pellets in humid environments
An evacuable die includes a vacuum port and o-ring sealed barrel that allows the die contents to be evacuated with a vacuum pump before and during pressing, removing air and moisture from the KBr-sample mixture. This produces pellets with reduced water absorption backgrounds in the FTIR spectrum, important for trace amount analysis where water vapor bands could obscure analyte peaks.
Choose tungsten carbide (WC) dies for trace element XRF analysis
Stainless steel dies contain iron, chromium, and nickel that can contaminate pressed pellets at trace levels detectable by XRF, while tungsten carbide dies introduce only tungsten and carbon, which are not typically analytes in environmental or geological XRF work. For trace element XRF analysis, WC dies are required to avoid systematic contamination of pressed pellet surfaces from the die.
Confirm die compatibility with your press model
Die sets must be compatible with the bore dimensions and plate geometry of the specific press. Confirm that the die outer diameter matches the press die seat before purchase, since dies and presses from different manufacturers may not be interchangeable.
Maintain dies correctly to preserve pellet surface quality
Scratches or pitting on die surfaces transfer defects to pressed pellets, reducing optical quality for FTIR or surface flatness for XRF. Regular gentle cleaning and periodic polishing with fine alumina paste on punch faces maintains die surface quality.
&nbsp;
<h2>Specifications context</h2>
&nbsp;
The pressure applied to the sample equals press force divided by die area: a 10-ton press through a 13 mm die produces approximately 700 MPa, while the same force through a 40 mm die produces approximately 75 MPa. Producing the same pellet density in a larger die therefore requires proportionally more force, and a press adequate for 13 mm FTIR pellets may not deliver sufficient compaction for 40 mm XRF dies.
<a href="https://mbpinc.net/contact-us">Request a quote today from the expert team at Molecular Biology Products Inc. (MBP)</a> to find the right pressing dies for your lab.

Pressing Dies

Square Easy-Retrieve Dry Pressing Die Set Specifications

Square Easy-Retrieve Dry Pressing Die Set

A set of hardened steel trapezoidal split sleeve dry press die sets for pellet presses, ranging from 13 x 13 mm to 50 x 50 mm.\r\n\r\nThese die sets are ready for you to make square pellets.\r\n\r\nThese press die sets are professionally built for you to work with samples that tend to stick to the inner surface of the sleeve, trapezoidal split inner sleeves with pellet ejector make samples release a snap.

Manufacturer

13 x 13 mm Square Easy-Retrieve Dry Pressing Die Set

25 x 25 mm Square Easy-Retrieve Dry Pressing Die Set

50 x 50 mm Square Easy-Retrieve Dry Pressing Die Set

Weighing Dishes & Boats

<h2 data-section-id="4vlupf" data-start="410" data-end="461">What Are Laboratory Weighing Dishes and Funnels?</h2>
&nbsp;
Laboratory weighing dishes and funnels are disposable antistatic consumables used in gravimetric sample preparation&mdash;where solid or liquid materials are weighed on analytical or top-loading balances before being transferred into reaction vessels, volumetric flasks, or tubes. Weighing dishes (also called weigh boats or pour boats) are flat-bottomed antistatic polystyrene containers used to hold samples on the balance pan during weighing. Weighing funnels are antistatic polypropylene tools with one flat side for stability on the balance and a conical stem designed to fit flask necks, allowing complete quantitative transfer of material with minimal loss. Globe Scientific offers antistatic PS weighing dishes in square, hexagonal, and pour-boat formats ranging from 10 mL to 350 mL, and antistatic PP weighing funnels in extra-small through extra-extra-large sizes. Both are single-use only because washing removes antistatic properties and affects weighing accuracy.
&nbsp;
<h2 data-path-to-node="15">What you will find:</h2>
&nbsp;
<ul data-path-to-node="16">
<li>
<a href="https://mbpinc.net/consumables/weighing-dishes-and-funnels/weighing-dishes" title="Weighing Dishes" style="color: #236fa1;">Weighing Dishes</a>: The Precision Interface &ndash; In the journey from balance to vessel, every milligram counts. Our dishes are the specialized bridges that ensure your "calculated mass" actually reaches the reaction.
</li>
<li>
<a href="https://mbpinc.net/consumables/weighing-dishes-and-funnels/funnels" title="Funnels" style="color: #236fa1; text-decoration: underline;">Funnels</a>: High-Flow Transfer Logic &ndash; Stop the "glugging" and the spills. Our funnels are engineered to handle the physics of fluid and powder movement for a seamless bench workflow.
</li>
</ul>
&nbsp;
<h2 data-section-id="1yz3s79" data-start="1436" data-end="1480">How to Choose Weighing Dishes and Funnels</h2>
&nbsp;
Weighing Dish Shape
Square weigh boats are used for routine laboratory weighing and are designed with sloping sides and recessed corners to minimize sample loss during transfer. Hexagonal weigh boats provide better stability on balance pans due to their molded edges and also offer improved grip during handling, making them suitable for workflows where stability matters. Pour-boat designs include a built-in spout that allows controlled and accurate dispensing of liquids or viscous samples into receiving vessels without spillage.
Weighing Dish Capacity
Small 10&ndash;20 mL dishes are used for micro-scale weighing of reagents typically under 2 g on analytical balances. Medium 50&ndash;100 mL dishes are used for routine laboratory weighing of 2&ndash;20 g samples. Large 200&ndash;350 mL dishes are used for bulk powders and higher-volume transfers on top-loading balances.
Weighing Funnel Size
Extra-small funnels are used for 5&ndash;20 mL vessels and microtubes, small funnels for 20&ndash;50 mL, medium funnels for 50&ndash;200 mL, large funnels for 200&ndash;500 mL, and extra-large funnels for 500&ndash;1000 mL flasks. The flat side ensures stable placement on the balance pan during weighing before transfer.
Color: White vs. Black
White dishes provide high contrast for dark or strongly colored samples, making them easier to visualize during transfer. Black dishes are used for light-colored or transparent samples where residue visibility is important, especially when confirming complete sample recovery.
&nbsp;
<h2 data-section-id="1jl751w" data-start="3653" data-end="3678">Specifications Context</h2>
&nbsp;
Globe Scientific antistatic polystyrene weighing dishes operate within &minus;10&deg;C to +80&deg;C and resist dilute acids, bases, and alcohols. The antistatic formulation is a specialized grade designed to reduce static charge and prevent sample loss during weighing and cannot be replaced with standard polystyrene labware. As of 2026, 20 mL and 100 mL antistatic weigh boats are widely used in pharmaceutical QC laboratories, research facilities, and academic analytical chemistry workflows where accuracy and contamination-free handling are required.
Keep sample handling clean and consistent&mdash;<a href="https://mbpinc.net/contact-us" title="MBP supports your workflow">MBP supports your workflow</a> &nbsp;with reliable weighing dishes and funnels designed for real lab conditions.

Weighing Dishes & Funnels

Weigh Dish Brochure

Square Shaped Weighing Boats - Round Bottom

3620 by Globe Scientific — antistatic, square-profile polystyrene weighing boats with a round bottom for complete powder and liquid transfer. Single-use, food-grade compliant, and resistant to dilute acids, alcohols, and bases. Sold in cases of 500. Available from MBP Inc. with worldwide shipping.