(VAFL40N) 70 mL Larg Cuvette, 2 Windows, No Cover, Fused, Lightpath 40mm, 45×42.5×42.5 mm

Description VAFL40N Fused Quartz Cuvette is a 2-window long-path cuvette with a 40 mm optical path length and 70 ml volume. This large-capacity cuvette is made from high-purity fused quartz and is optimized for UV/VIS absorbance measurements where higher sensitivity and precision are required. Key Features 40 mm optical path — increases absorbance sensitivity, enabling accurate detection of low-concentration analytes. 2-window design — ideal for transmission and absorbance measurements. Fused quartz fabrication — provides excellent thermal resistance (up to 600 °C) and high chemical durability (except HF and certain strong organic solvents). 70 ml volume — suitable for applications requiring larger sample volumes, such as environmental or process analysis. High transmittance across the 190–2500 nm wavelength range, ideal for UV/VIS/NIR spectroscopy. Typical Applications Trace detection of pollutants or chemical species. Absorbance and transmission spectroscopy in environmental monitoring. Industrial or process analysis with medium-to-large sample volumes. High-sensitivity research and QA/QC testing. Fused Fabrication Notes Can be heated to 600 °C without deformation. Assembled using quartz powder; surface may be slightly stained with strong dyes or solvents over time. Not intended for long-term storage of samples. Not compatible with HF, toluene, acetone, or other aggressive organic solvents — these can reduce cuvette lifespan. Cuvette Specifications Type Large Capacity Cuvette Optical Path Length 40 mm Article No. VAFL40N Volume 70 ml Measuring Method Absorption Cells Clear Walls 45 × 42.5 mm Number of Windows 2 Wavelength Range UV/VIS (190 – 2500 nm) Height 45 mm Width (Inside) 40 mm Width (Outside) 42.5 mm Depth (Inside) 40 mm Depth (Outside) 42.5 mm Cover Material None Fabrication Method Fused* Package Cell Only Note: Fused quartz cuvettes are designed for high-sensitivity UV/VIS/NIR spectroscopy. Avoid HF, toluene, acetone, or other aggressive organic solvents. Not suitable for airtight sample storage. 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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