(VAOF1046) 20ml Fluorescence Cuvette, Fused, Dual Lightpath 10/ 46mm, 47x50x14 mm, 4 Clear Windows

Description VAOF1046 Fused Quartz Dual Lightpath Fluorescence Cuvette is a 4-window cuvette with a 10 mm and 46 mm dual optical path length and a 20 ml volume. It is designed for both standard fluorescence experiments and high-sensitivity applications, giving researchers flexibility in detection sensitivity. The long-path configuration amplifies weak optical signals and enables accurate detection of trace-level analytes. Why Long Path Length Matters Long path length cuvettes extend the light’s travel distance through the sample, directly amplifying absorbance or fluorescence signals based on the Beer–Lambert Law. This enhancement increases detection sensitivity, improves signal-to-noise ratio, and allows for precise measurements at low concentrations. The VAOF1046 cuvette offers two selectable paths (10 mm & 46 mm), enabling users to choose between standard and high-sensitivity modes depending on the experiment. This design is ideal for: Fluorescence measurements with low-concentration fluorophores. Trace contaminant detection in environmental and pharmaceutical analysis. UV/VIS absorption and emission experiments requiring adjustable path lengths. Biological, chemical, and materials R&D applications with flexible sensitivity needs. Key Features Dual optical path (10 mm / 46 mm) — flexible configuration for different measurement ranges. 4-window design — allows side detection, optimized for fluorescence spectroscopy. Fused fabrication — excellent heat resistance (up to 600 °C) and strong chemical durability. Long-path mode — enhances detection sensitivity, signal strength, and measurement accuracy. Wide wavelength range — 190 – 2500 nm, suitable for UV/VIS and fluorescence instruments. Typical Applications Fluorescence assays with side detection. Low-concentration absorbance or emission studies. Environmental and water quality analysis for trace detection. Pharmaceutical, biotech, and advanced material research. Fused Fabrication Notes Fused quartz provides exceptional optical clarity, heat resistance, and chemical stability. Not suitable for hydrofluoric acid (HF) or strong organic solvents such as toluene and acetone. Powder seams may discolor over time without affecting optical performance. Path length tolerance typically ±0.06 – 0.08 mm. Cuvette Specifications Type Fluorescence Quartz Cuvette Optical Path Length 10 mm / 46 mm Article No. VAOF1046 Volume 20 ml Measuring Method Fluorescence Cells Clear Walls 47 × 50 mm, 47 × 14 mm Number of Windows 4 Wavelength Range UV/VIS (190 – 2500 nm) Height 47 mm Width (Inside) 46 mm Width (Outside) 50 mm Depth (Inside) 10 mm Depth (Outside) 14 mm Center Height (Z) 8.5 – 20 mm Fabrication Method Fused* Package Cell Only Note: VAOF1046 is engineered for fluorescence and UV/VIS applications where adjustable path length is beneficial. Its fused quartz construction ensures stable, high-sensitivity performance. Not suitable for HF or strong organic solvents. The dual-path feature allows switching between standard and long-path measurements for flexible experimental setups. 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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