Quartz 20mm Standard Cuvette, 7ml, Standard 80, Two-way Light, PTFE Cap, Pack of Two, C202CS

Weight	100 g

SKU: C202CS

C202CS 20mm Quartz Two-way Light Standard Cuvette, 7ml, Standard 80

Original price was: $34.00.Current price is: $31.00.

In Stock

Quartz 20 mm standard cuvette for absorbance spectroscopy (190–2500 nm). 7ml volume, Standard 80 (>80%). two-way light, ptfe cap. Sold as a pack of two. SKU: C202CS

In Stock

SKU: C202CS Categories: Cuvettes, Products, Quartz Standard Cuvettes

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Standard cuvettes ship in 3-5 days. Custom items 1-2 weeks.

Description

The C202CS is a quartz (fused silica) standard cuvette with 20 mm path length and two-way light optical windows, designed for UV-Vis and NIR spectrophotometry across 190–2500 nm. The two-way light configuration transmits the beam through two opposing polished optical faces while the two frosted sides minimize stray light interference and internal reflections, delivering clean baseline performance for absorbance measurements. Fabricated using Standard 80 — precision-glued quartz construction — delivering >80% transmittance at an economical price point. An excellent choice for routine UV-Vis measurements, teaching laboratories, and applications where standard optical quality meets your requirements. Includes a ptfe cap for chemical-resistant sealing. Supplied as a pack of two for cost-effective parallel or comparative experiments.

Technical Specifications
Material	Quartz (Fused Silica)	SKU	C202CS
Type	Standard Cuvette	Path Length	20 mm
Volume	7ml	Optical Windows	Two-way Light
Fabrication	Standard 80	Transmittance	>80%
Wavelength	190–2500 nm	Cap	PTFE Cap
Exterior Dimensions	22.5 × 12.5 × 45 mm	Interior Dimensions	20 × 10 × 43 mm
Package	Pack of Two

Applications

◆ UV-Vis absorbance spectrophotometry across the full 190–2500 nm range

◆ Beer-Lambert law concentration determination and calibration curves

◆ Pharmaceutical dissolution testing and active ingredient quantification

◆ Environmental water quality analysis (COD, BOD, nitrate, phosphate)

◆ Chemical kinetics and reaction rate monitoring

◆ Teaching laboratories and routine analytical measurements

Why This Cuvette?

The two-way light configuration (two polished optical faces, two frosted sides) provides clean absorbance measurements with minimal stray light. The frosted faces reduce internal reflections and scattering, improving baseline stability and signal-to-noise ratio — particularly important for low-absorbance measurements near the detection limit. The 20 mm path length increases measurement sensitivity by 2× compared to a standard 10 mm cuvette (Beer-Lambert law: A = εlc), significantly improving detection limits for dilute analytes and trace-level concentrations.

Usage Tips: Handle the cuvette by its frosted (non-optical) sides to avoid fingerprints on the polished windows. Fill to at least 15 mm above the beam center height to avoid meniscus effects in the light path. Clean with spectroscopic-grade solvent and lint-free tissue after each use. For aqueous samples, rinse with deionized water first, then solvent. Avoid prolonged ultrasonic cleaning which can stress the optical bonds over time. Store upright in the original case when not in use. Compatible with Shimadzu, Agilent, PerkinElmer, Thermo Fisher, JASCO, and most commercial UV-Vis spectrophotometers with standard 12.5 mm cuvette holders.

Custom Orders & Academic Purchasing: Need a custom size, path length, or window configuration? We manufacture made-to-order cuvettes tailored to your specifications. Academic institutions: we accept Purchase Orders (POs) with pay-after-delivery terms. Contact us for quotes and custom requests.

Disclaimer: This product is intended for laboratory and research use only. It is not designed, approved, or intended for use in medical diagnostics, therapeutic procedures, or any clinical application involving human or animal subjects. The buyer assumes all responsibility for determining the suitability of this product for their specific application.