(VAOF20) 7mL Standard Absorption Cuvette with PTFE Lid, Fused, Lightpath 20mm

Weight	100 g
Brand	Qvarz
Resistant to Chemicals	Yes

SKU: VAOF20

(VAOF20) 7mL Standard Absorption Cuvette with PTFE Lid, Fused, Lightpath 20mm

(VAOF20) 7mL Standard Absorption Cuvette with PTFE Lid, Fused, Lightpath 20mm - Image 2

(VAOF20) 7mL Standard Absorption Cuvette with PTFE Lid, Fused, Lightpath 20mm - Image 3

$31.00

In Stock

This long path length cuvette is for absorption applications, with a path length of 20 mm. Resistant to most chemicals. Use up to 600°C. The price is for 1 piece.

In Stock

Type: Fused

SKU: VAOF20 Categories: All Cuvettes & Cells, Cuvettes & Flow Cells, Fused Cuvettes, Long Path Length Cuvettes, Macro Cuvettes >3.5mL, Open Top Cuvettes, Products, Spectrometer Cuvettes Tags: macro cuvette, open top cuvette, spectrometer cuvette

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Description

VAOF20 Fused Quartz Long Pathlength Cuvette is a 20 mm standard absorption cuvette designed for extended pathlength UV/VIS measurements.
It comes with a PTFE lid to minimize sample evaporation and maintain measurement consistency.

Key Features

20 mm optical pathlength — increases absorbance signal and enhances the detection of low-concentration samples.
PTFE lid — prevents evaporation and contamination during extended measurements or kinetic studies.
Fused quartz fabrication — provides superior optical clarity, excellent UV transparency (190–2500 nm), and high thermal and chemical resistance.
Round base design — ensures compatibility with most standard spectrophotometer holders.
Ideal for routine and advanced laboratory spectroscopy.

Typical Applications

Trace and low-concentration sample detection
Environmental and water quality analysis
Pharmaceutical and biochemical R&D
General UV/VIS absorption spectroscopy

Fused Fabrication Notes

High temperature resistance up to 600 °C
Light path tolerance: ±0.06 – 0.08 mm
Not suitable for HF, toluene, acetone, and aggressive organic solvents

Cuvette Specifications

Type	20 mm Standard Quartz Cuvette	Optical Path Length	20 mm
Article No.	VAOF20	Volume	7 ml
Measuring Method	Absorption Cells	Base Type	Round
Number of Windows	2	Wavelength Range	UV/VIS (190 – 2500 nm)
Height	45 mm	Width (Inside)	10 mm
Width (Outside)	12.5 mm	Depth (Inside)	20 mm
Depth (Outside)	22.5 mm	Center Height (Z)	8.5 – 20 mm
Fabrication Method	Fused*	Package	Cell & Lid

Note: VAOF20 is a fused quartz cuvette with a 20 mm pathlength and PTFE lid, ideal for high-sensitivity and high-precision UV/VIS absorption measurements.

Comparison of Fabrication Types

1	2	3	4
	*Molded	*Fused	*Bonded / Glued
UV vis ( 190- 2500 nm)	Yes	Yes	Yes
Transmission Matched	On Request	No	No
Transmission > 80%	Yes	Yes	Yes
Resistant to Acids and Bases (except hydrofluoric acid)	Yes	Yes	No
Resistant to Organic Solvents	Yes	Yes	No
Usable upto 600°C (1112°F)	Yes	Yes	Yes
Usable upto 1200°C (2192°F)	Yes	No	No
0 Variations Reading	On Request	No	No
Fabrication	Molded	Assembled with Quartz Powder	Assembled with Glue
Adhesives	No	No	Yes
Storage	Short Term Storage	Clean After Use	Clean After Use
Available Material	Fused Quartz Material
Note	Molded 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.