Brand: scuvette. 10mm quartz large screw cap cuvette two-way (round bottom) 3.5mL fully sealed with M12 PTFE thread cap, suitable for anaerobic, volatile-sample and fluorescence experiments. Japanese imported JGS1 fused silica, optical contact one-piece molding process (premium; comparable to German original imports), >83% transmittance, 200nm-2500nm wavelength, max operating temp ≤1200°C. Overall height with cap 58mm. PTFE solid or injectable cap with PTFE or silicone septum sold separately.
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CAS Certification
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Optical Contact One-Piece Molding (German Tech)
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Solid Lid vs Injectable Cap for Two-Way Cell
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JGS1 Fused Silica — Full Spectrum Transmission
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JGS1 Material Introduction & Transmittance Curve
5.0
★★★★★
Based on 42 verified reviews
HW
Hans W.
Germany · Verified Buyer
★★★★★
Prima Kuvetten fuer den taeglichen Laborgebrauch. Die Paarung der Transmissionswerte ist sehr gut. Preis-Leistung stimmt absolut. Gerne wieder.
Reviewed on Jul 8, 2026
OB
Olivia B.
Canada · Verified Buyer
★★★★★
These are great for our analytical lab. The JGS1 material gives clean spectra and the build quality is solid. Customer support was responsive to our questions.
Reviewed on Jun 18, 2026
FB
Felix B.
Switzerland · Verified Buyer
★★★★★
Sehr praezise gefertigte Kuvetten. Die Fensterebenen sind perfekt planparallel. Fuer unsere kinetischen Messungen ideal. Absolute Empfehlung.
Reviewed on Jun 22, 2026
ML
Mei L.
Australia · Verified Buyer
★★★★★
We ordered both Ordinary and High Precision grades. Both work well for their intended use cases. The HP ones are genuinely comparable to Hellma at a much lower price.
Reviewed on Jun 25, 2026
LO
Liam O.
United Kingdom · Verified Buyer
★★★★★
Well packaged and arrived intact. The path length is accurate and the quartz windows are spotless. Good value for a research lab on a budget.
Reviewed on Jun 5, 2026
10mm Quartz Screw Cap Cuvette - Frequently Asked Questions
Is this screw cap cuvette airtight and leak-proof?
Yes. The threaded PTFE solid cap seals against the quartz body with a precision thread, keeping the 3.5 mL sample airtight for volatile solvents and oxygen- or moisture-sensitive assays. The M10 (or M12 on the EU version) thread is fully reusable - tighten hand-tight only to protect the thread.
Two-way, four-way or five-way windows - which do I need?
Two-way cells suit standard UV-Vis absorbance measurements. Four-way and five-way cells are for fluorescence, multi-angle readings or reference-channel setups where light must enter from several sides without rotating the cell. All variants share the same 10 mm path length and 3.5 mL chamber - compare the full screw cap cuvette range.
How do I clean a quartz screw cap cuvette without scratching it?
Rinse immediately after use, flush with deionized water and a mild detergent (or 1:1 HCl for organic residues), then rinse with isopropanol and air-dry. Never use abrasive wipes, brushes or metal tools inside the optical chamber. See the cuvette care guide for the full protocol.
