Description VAOB8 Fused Quartz Absorption Cuvette is a custom-dimension cuvette with an 8 ml volume and a 3 mm optical path length. It features a non-standard wide and tall geometry (72 × 42 mm), making it suitable for specialized laboratory setups and OEM instrument integration where conventional cuvette sizes are not ideal. This model demonstrates our capability to produce customized quartz cuvettes tailored to match specific beam geometries, sample chamber sizes, or detection configurations. Its fused quartz construction provides high transmission, superior chemical resistance, and long service life for demanding analytical applications. Key Features Custom outside dimensions (72 × 42 mm) — ideal for special instruments or OEM integration. 3 mm optical path — suitable for medium to high concentration samples. 8 ml capacity — supports larger sample handling compared to standard micro cuvettes. Fused quartz construction — excellent UV transparency, thermal stability, and solvent resistance. Broad wavelength range: 190–2500 nm — compatible with UV/VIS/NIR applications. Typical Applications Customized spectroscopy system integration OEM instrument design and R&D Environmental and process analysis Biochemical and pharmaceutical testing Advanced analytical experiments requiring special geometry Fused Fabrication Notes Fused quartz ensures high optical performance and thermal stability up to 600 °C. Not suitable for hydrofluoric acid (HF) or strong organic solvents like toluene and acetone. Powder seams may discolor over time but do not affect optical performance. Typical dimensional tolerance: ±0.06–0.08 mm. Cuvette Specifications Type Absorption Quartz Cuvette Optical Path Length 3 mm Article No. VAOB8 Volume 8 ml Measuring Method Absorption Cells Clear Walls 72 × 42 mm Number of Windows 2 Wavelength Range UV/VIS (190 – 2500 nm) Height 72 mm Width (Inside) 40 mm Width (Outside) 42 mm Depth (Inside) 3 mm Depth (Outside) 5 mm Center Height (Z) 8.5 – 20 mm Fabrication Method Fused* Package Cell Only Note: VAOB8 is a custom-size fused quartz cuvette designed for non-standard optical systems. Its wide and tall format is especially useful in OEM integration, advanced spectroscopy setups, and analytical workflows requiring unique sample dimensions. 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. Related products 12% Add to Wishlist Add to Wishlist (VAOM3) 1.05mL Absorption Cuvette with PTFE Lid, Molded, Round Base, Lightpath 3mm 100 gIn Stock$115.00 Original price was: $115.00.$102.00Current price is: $102.00.Add to cart Add to Wishlist Add to Wishlist Add to Wishlist Add to Wishlist (VCLB03) 3.5mL Flow Cuvette with 2 Ends Open, Lightpath 3mm, 2 Windows, Bonded 100 gIn Stock$123.00Add to cart Add to Wishlist Add to Wishlist Add to Wishlist Add to Wishlist (VAOF05) 0.5ml Absorption Cuvette, Fused, Lightpath 3mm, 21.5x10x5 mm, 2 Clear Windows 100 gIn Stock$49.00Add to cart Add to Wishlist Add to Wishlist Add to Wishlist Add to Wishlist (VFOF03) 2.1 mL Dual Pathlength Cuvette, Fused, Lightpath 3mm or 20mm, 45×22.5×5.5 mm 100 gIn Stock$257.00Add to cart Add to Wishlist Add to Wishlist
