Description VAOF13 Fused Quartz Absorption Cuvette is a 2-window cuvette with a 9 mm optical path length and a 1.3 ml volume. It features a compact wide clear wall design, ideal for UV/VIS absorbance measurements when sample volume is limited. Fused fabrication provides excellent chemical and thermal resistance, ensuring stable and precise measurement performance. Key Features 9 mm optical path length — suitable for medium-concentration samples and short-path absorbance applications. 2-window design — optimized for straight-beam UV/VIS absorbance spectroscopy. Fused fabrication — offers excellent thermal resistance (up to 600 °C) and chemical durability in most acid and base environments. Compact geometry — ideal for experiments with small sample volumes. Broad wavelength range — 190 – 2500 nm, suitable for UV/VIS and NIR applications. Typical Applications UV/VIS absorbance and transmission measurements. Protein and nucleic acid quantification at 260/280 nm. Environmental and water quality analysis. Biological and chemical assays with limited sample volume. Routine laboratory and research applications. Fused Fabrication Notes Fused fabrication provides excellent thermal and chemical resistance. Not suitable for hydrofluoric acid (HF) or strong organic solvents such as toluene and acetone. Powder seams may discolor over time but do not affect optical performance. Typical path length tolerance is ±0.06 – 0.08 mm. Cuvette Specifications Type Absorption Quartz Cuvette Optical Path Length 9 mm Article No. VAOF13 Volume 1.3 ml Measuring Method Absorption Cells Clear Walls 25 × 8 mm Number of Windows 2 Wavelength Range UV/VIS (190 – 2500 nm) Height 25 mm Width (Inside) 6 mm Width (Outside) 8 mm Depth (Inside) 9 mm Depth (Outside) 11 mm Center Height (Z) 8.5 – 20 mm Fabrication Method Fused* Package Cell Only Note: Fused fabrication provides excellent durability for demanding UV/VIS applications. Avoid use with HF or strong organic solvents. Powder seams may discolor over time but do not affect measurement accuracy. This compact 9 mm path length cuvette is ideal for precise measurements with limited sample volumes. Comparison of Fabrication Types 1234 *Molded*Fused*Bonded / Glued UV vis ( 190- 2500 nm)YesYesYes Transmission Matched On RequestNoNo Transmission > 80%YesYesYes Resistant to Acids and Bases (except hydrofluoric acid)YesYesNo Resistant to Organic SolventsYesYesNo Usable upto 600°C (1112°F)YesYesYes Usable upto 1200°C (2192°F)YesNoNo 0 Variations ReadingOn RequestNoNo FabricationMoldedAssembled with Quartz PowderAssembled with Glue AdhesivesNoNoYes StorageShort Term StorageClean After UseClean After Use Available MaterialFused Quartz Material NoteMolded and fused cuvettes and cells are assembled by direct fusion without the use of adhesives throughout the production process. This guarantees resistance against corrosive chemicals and high temperature. Each quartz cuvette and cell has excellent transmission from 190nm to 2500nm. 1 QVARZ Cuvettes Transmission Characteristics The following table is our cuvettes and cells made of quartz material suitable for wavelength from 190nm to 2500nm and depicts the percentage transmission for the material. IR or Glass material is not included. Why QVARZ Cuvettes and Cells?QVARZ is world-renowned as the producer of premium quartz cuvettes. Over fifteen years of experience manufacturing quartz cuvettes ensures that every QVARZ cuvettes are manufactured to the most exacting standards for reproducible results. Spectrophotometry cuvettes - Most spectrophotometry applications in the visible and UV ranges benefit from QVARZ spectrophotometry cuvettes. Our cuvettes made of fused quartz material deliver precise and reliable readings even at wavelengths as low as 190 nm. QVARZ cuvettes are compatible with most spectrophotometers and photometers with standard 0.2 - 100 mm path lengths. Fluorometry cuvettes - QVARZ brings two decades of experience molding high-quality spectrophotometry cuvettes to new four-sided clear cuvettes for fluorometry. Available in standard quartz material with ultra-low auto-fluorescence for the highest precision measurements. Protective packaging - QVARZ cuvettes are encased in dust-free, low scratching expanded polystyrene packaging. This ensures that premium cuvettes arrive in the laboratory ina the same pristine condition they were in at the factory, with optical quality windows and free of contaminants. Volumes for most purposes - Our cuvettes are available in a variety of ranges from macro to macro semi-micro sizes to respond to the needs of most scientific applications. We are also able to customize sample volume to deliver consistent, accurate findings. Perform consistently - QVARZ Cuvettes are constructed from high-quality fused quartz materials and are grouped by manufacturing mold cavities to ensure the lowest fluctuation in extinction coefficient. Customization - Custom cuvettes and cells are encouraged and available upon request; mechanical drawings with specifications and tolerances are prerequisites. Awesome pricing and flexibility on small quantities. To the best of our knowledge, the technical information provided here is accurate. However, Qvarz.com assumes no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch. 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