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.

5105-Analyzer Consumables Catalog

ABBOTT: Reaction Vessel, PP, for use with the Abbott Architect Series Analyzers, 10000/CS

Globe Scientific 5105 PP reaction vessels for Abbott Architect Series Analyzers, 10,000/CS (2,000/bag, 5 bags). The primary consumable for each Architect test cycle — holds specimen and reagents during optical measurement. Order at <a href="https://www.mbpinc.net/quickorder">mbpinc.net/quickorder</a>.

Manufacture

5162-Analyzer Consumables Catalog

ABX: Cuvette Segments, Racked, for use with Horiba ABX Mira S Plus & Pentra 400 analyzers, 15/Rack, 30 Racks/Unit, CS/450

5162 by Globe Scientific is a PMMA cuvette segment for Horiba ABX Mira S Plus and Pentra 400 analyzers, pre-loaded in racks of 15 (30 racks/unit, 450/case). Special Order item — approximately 4–6 week lead time, non-returnable. Contact <a href="mailto:customerservice@mbpinc.net">customerservice@mbpinc.net</a> for pricing and availability before ordering.

5150-Analyzer Consumables Catalog

5150-TDS-5150

ACL: Rotor, 20-Place, for use with IL ACL 100, 200, 300, 1000, 2000, 3000, 6000 & 7000 model analyzers, CS/100

5150 by Globe Scientific — 20-place disposable cuvette rotors for IL ACL 100, 200, 300, 1000, 2000, 3000, 6000, and 7000 coagulation analyzers. 100 rotors per case (25/sleeve × 4). Not for ACL 9000/10000. Available from MBP Inc. worldwide.

111167-Group-Analyzer Consumables Catalog

Accessories for Spectrophotometer Cuvettes

Globe Scientific 111167 — PE/LDPE snap-fit plug cap for standard square spectrophotometer cuvettes. Seals the cuvette top against evaporation, ambient light, and contamination between readings. 1,000 caps per unit (500/bag × 2 bags).

Cap, Plug for Square Spectrophotometer Cuvettes, PE, 500/Bag, 2 Bags/Unit, BOX/1000

Holder, 12-Place, for Spectrophotometer Cuvettes, PE, 5/Unit, BOX/5

Stirring Stick, 90mm Long, for Spectrophotometer Cuvettes, PS, 100/Unit, BAG/100

5120-Group-Analyzer Consumables Catalog

Cobas Mira Cuvettes

Globe Scientific 5120 are PMMA cuvette segments compatible with Cobas Mira®, Mira S®, Mira Plus®, and Horiba ABX Mira Plus® analyzers. 12-place configuration, individually wrapped, 50 per box, 500 per case. Third-party compatible replacement, not OEM.

COBAS MIRA: Cuvette, for use with Cobas Mira, Mira S, Mira Plus and Horiba ABX Mira Plus analyzers, Individually Wrapped, 50/Box, 10 Boxes/Unit, CS/500

COBAS MIRA: Cuvette, for use with Cobas Mira, Mira S, Mira Plus and Horiba ABX Mira Plus analyzers, Individually Wrapped, 50/Box, 6 Boxes/Unit, CS/300

COBAS MIRA: Cuvette, Racked, for use with Cobas Mira, Mira S, Mira Plus and Horiba ABX changer analyzers, 15/Rack, 30 Racks/Unit, CS/450

6618-Analyzer Consumables Catalog

Cuvette for MLA Electra 620, 650 & 750, PS, BOX/550

Globe Scientific 6618 polystyrene cuvettes for MLA Electra 620, 650, and 750 coagulation analyzers, packaged 550 per box. Direct-fit replacement for Electra analyzer cuvettes. Order at <a href="https://www.mbpinc.net/quickorder">mbpinc.net/quickorder</a> or email customerservice@mbpinc.net.

5107-Group-Analyzer Consumables Catalog

Cuvettes for Ciba Corning 550 Express

Globe Scientific 5107 — polystyrene disposable cuvettes for the Bayer 550 Express and 550 Express Plus (Ciba Corning 550 Express) analyzers, packaged in cartridges with 13 five-place segments for fast loading.

CIBA CORNING: Disposal Bag Units, for use with Ciba Corning 550 Express and Express Plus analyzers, CS/24

CIBA CORNING: Cuvette Tray & 24 Disposal Bags, for use with Ciba Corning 550 Express, Express Plus analyzers and Awareness Technology Chemwell T Analyzer, CS/100

CIBA CORNING: Cuvette Tray Only, for use with Ciba Corning 550 Express and Express Plus analyzers (No Disposal Bags), CS/200

5145-Group-Analyzer Consumables Catalog

Cuvettes for Mindray® BS200 & BS300

5145 by Globe Scientific is a polystyrene cuvette segment for Mindray® BS200 and BS300 chemistry analyzers, individually wrapped. Supplied 1/package, 250/box, 1,000/case. A third-party alternative to OEM Mindray cuvettes for high-volume clinical chemistry labs.

MINDRAY: Cuvette Segment for Mindray BS200 analyzer, 1/pk, 250/Box, 1000/Unit, CS/1000

MINDRAY: Cuvette Segment for Mindray BS300 analyzer, 1/pk, 250/Box, 1000/Unit, CS/1000

5131-Analyzer Consumables Catalog

HITACHI: Cuvette, for use with Hitachi 911 & 912 analyzers, 6/Set, 4 Sets/Unit, CS/24

5131 by Globe Scientific is a 20-place Bionex cuvette segment for Hitachi® 911 and 912 clinical chemistry analyzers. Packaged 6 segments per set, 4 sets per case (24 segments/case, 480 reaction positions). Globe Scientific OEM-compatible replacement for routine cuvette maintenance. Not compatible with Hitachi 902 — for 902 instruments use SKU 5133.

5133-Analyzer Consumables Catalog

HITACHI: Cuvette, for use with the Hitachi 902 analyzer, 6/Set, 4 Sets/Unit (Note: New packaging) ** SPECIAL ORDER ITEM **, CS/24

5133 by Globe Scientific is an 8-place PMMA cuvette segment for the Hitachi® 902 clinical chemistry analyzer. Supplied 6 cuvettes/box, 4 boxes/case (24 cuvettes/case, 192 reaction positions). OEM-compatible Globe Scientific replacement. Special Order Item — confirm lead time with MBP before ordering. Not compatible with Hitachi 911/912 (use SKU 5131 for those).

5130-Group-Analyzer Consumables Catalog

Hitachi 717 Cuvette

5130 by Globe Scientific is a 20-place PMMA cuvette segment for Hitachi® 717 and 914 clinical chemistry analyzers. Each unit contains 4 sets of 6 segments (24 total); the 5130B unit ships 12 sets (72 total). PMMA construction delivers the optical clarity required for accurate photometric analysis across routine clinical chemistry panels.

HITACHI: Cuvette, for use with Hitachi 717 & 914 analyzers, 6/Set, 4 Sets/Unit, CS/24

HITACHI: Cuvette, for use with Hitachi 717 & 914 analyzers, 6/Set, 12 Sets/Unit, CS/72

111147-Group-Analyzer Consumables Catalog

111147-Group-TDS-112157

111147-Group-TDS-112147

111147-Group-TDS-111157

111147-Group-TDS-111147

PMMA Spectrophotometer Cuvette

111147 by Globe Scientific is a disposable UV-grade PMMA macro spectrophotometer cuvette: 4.5 mL capacity, 10 mm pathlength, 280–800 nm range, 2 clear sides, ±1% absorption variation. Supplied 500/case. Suitable for nucleic acid quantification, protein assays, and colorimetric analysis.