Quartz 10mm Threaded Cuvette, 2.5ml, Molded 83, Five-Way Light, No Cap, 1pc/ea, C105CS2

Weight	30 g

SKU: C105CS2

C105CS2 Quartz 10mm Five-Way Light Threaded Cuvette 2.5ml Molded 83

Original price was: $380.00.Current price is: $342.00.

In Stock

Quartz 10mm threaded cuvette, 2.5ml, Molded 83 (>83% transmittance). Five-Way Light. PTFE-Lined 190–2500 nm. SKU: C105CS2.

In Stock

SKU: C105CS2 Categories: Cuvettes, Products, Quartz Custom Cuvettes Brand: MachinedQuartz

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

Description

The C105CS2 is a quartz threaded cuvette with 10mm path length and five-way light optical configuration — four vertical faces and the bottom face are polished to optical grade, enabling standard absorbance, 90° fluorescence, and downward/upward detection geometries. With a 2.5ml internal volume (10 × 10 × 20 mm chamber), the cell is compatible with most commercial spectrophotometers. Fabricated using Molded 83 (>83% transmittance) — precision-molded from a single piece of quartz, eliminating adhesive joints entirely. The PTFE-lined screw cap threads securely onto the cuvette, providing a leak-proof seal that prevents evaporation of volatile solvents and protects air-sensitive samples. Showcases a five-way threaded cuvette with precision screw threads and white PTFE cap, photographed on a blue surface highlighting the crystal clarity of the quartz and the four-plus-bottom optical window geometry.

Technical Specifications — Threaded Cuvette
Material	Quartz	SKU	C105CS2
Path Length	10mm	Internal Volume	2.5ml
Optical Windows	5 (Five-Way Light)	Fabrication	Molded 83
Transmittance	>83%	Wavelength	190–2500 nm
Exterior Dimensions	12.5 × 12.5 × 45 mm	Interior Dimensions	10 × 10 × 20 mm
Closure	PTFE-Lined Screw Cap	Package	1pc/ea

Spectroscopy Applications

◆ UV-Vis Absorbance Spectroscopy — quantitative concentration, kinetics, Beer–Lambert studies

◆ Fluorescence Spectroscopy — 90° excitation/emission for fluorescent probes, dyes, and quantum dots

◆ DNA / RNA Quantification — nucleic-acid purity checks at 260/280 nm

◆ Protein Assays — Bradford, BCA, Lowry, and direct A280 measurements

◆ Enzyme Kinetics — real-time substrate conversion and inhibition studies

◆ Water Quality & Environmental — COD, nitrate, phosphate, heavy-metal colorimetric tests

◆ Pharmaceutical QC — dissolution testing, drug concentration, stability monitoring

◆ Chemical Reaction Monitoring — reaction progress tracking via absorbance changes

Why Five-Way Light?

Five-way light cuvettes have four vertical faces and the bottom face polished to optical grade. In addition to standard transmission and 90° fluorescence measurements, the polished bottom enables downward excitation or upward emission collection — a geometry used in total-internal-reflection fluorescence (TIRF) and certain plate-reader-style instruments.

Why a PTFE-Lined Screw Cap?

The internal-thread screw cap design provides the most secure closure available for standard cuvettes. Unlike friction-fit caps or stoppers, the threaded connection resists accidental opening during sample handling, vortex mixing, or transport. The PTFE liner ensures chemical inertness and a tight seal against vapour loss — critical when working with volatile organic solvents, concentrated acids, or extended kinetic measurements. The screw cap can be repeatedly removed and replaced without degradation.

Why Molded 83?

Molded 83 uses monolithic fused-quartz construction — no adhesive joints — delivering >83% UV transmittance from 200–2500 nm. Because there are no glue seams, the cell withstands all common laboratory solvents, concentrated acids, and bases (avoid HF). This fabrication is ideal for demanding analytical workflows where chemical resistance, long service life, and maximum optical clarity are priorities.

Usage Tips

Rinse with a compatible solvent (e.g., ethanol or the measurement solvent) before first use to remove any residual particles.
Do not use abrasive materials or brushes on the polished optical faces — wipe gently with lens tissue.
Withstands all common laboratory solvents, concentrated acids, and bases. Avoid HF (hydrofluoric acid).
Store in the original protective case to prevent scratches on the optical windows.
For baseline correction, fill with your reference solvent, and run a blank before sample measurements.

Custom Orders
Need a non-standard path length, volume, window configuration, or closure type? We manufacture quartz cuvettes to your exact specifications. Request a custom quote.

Disclaimer: Specifications are nominal values measured under standard laboratory conditions. Actual transmittance may vary slightly with wavelength and sample conditions. Images are representative; minor cosmetic variations between production batches are normal and do not affect optical performance.