(VAOBS5) 1.75mL Semi-Micro Cuvette, PTFE Lid, Bonded, Width 5mm, Black Walls

Weight	120 g
Brand	Qvarz
Resistant to Chemicals	No

SKU: VAOBS5

(VAOBS5) 1.75mL Semi-Micro Cuvette, PTFE Lid, Bonded, Width 5mm, Black Walls

(VAOBS5) 1.75mL Semi-Micro Cuvette, PTFE Lid, Bonded, Width 5mm, Black Walls - Image 2

(VAOBS5) 1.75mL Semi-Micro Cuvette, PTFE Lid, Bonded, Width 5mm, Black Walls - Image 3

(VAOBS5) 1.75mL Semi-Micro Cuvette, PTFE Lid, Bonded, Width 5mm, Black Walls - Image 4

~~$33.00~~ Original price was: $33.00.$30.00Current price is: $30.00.

In Stock

This semi micro volume cuvette is for absorption applications, with a path length of 10 mm. For Aqueous Samples Only. Use up to 100°C. The price is for 1 piece.

In Stock

Type: Bonded, For Aqueous Samples Only

SKU: VAOBS5 Categories: Semi Micro Cuvettes, All Cuvettes & Cells, Bonded Cuvettes, Cuvettes & Flow Cells, Micro Cuvettes <3.5mL, Narrow Width Cuvettes, Open Top Cuvettes, Products, Spectrometer Cuvettes Tags: narrow width cuvette, open top cuvette, spectrometer cuvette

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Description

VAOBS5 – 1.75 mL Semi-Micro Quartz Cuvette (Bonded, 5 mm Width, 2 Windows, PTFE Lid, Black Walls)

The VAOBS5 is a high-precision bonded quartz cuvette with black walls, specially designed for UV/VIS absorption spectroscopy.
With a 5 mm internal width and 10 mm optical path length, this cuvette is well suited for larger sample volumes while ensuring enhanced measurement sensitivity and reduced background interference.

Key Features

Sample volume: 1.75 mL (1750 µL) — ideal for semi-micro and standard analytical applications.
5 mm internal width: provides a higher signal-to-noise ratio for low or medium absorbance measurements.
10 mm optical path length: standard size compatible with most spectrophotometers.
2 optical windows: optimized for reliable UV/VIS absorbance readings.
Black walls: minimize stray light and reflection, significantly improving measurement precision.
Bonded fabrication: path length tolerance ±0.06–0.08 mm ensures consistent analytical performance.
Wavelength range: UV/VIS (190–2500 nm).

Typical Applications

UV/VIS absorbance spectroscopy
Protein and nucleic acid quantification
Clinical and biochemical analysis
Trace-level and medium-concentration measurements

Cuvette Specifications

Type	Semi Micro Cuvette	Optical Path Length	10 mm
Article No.	VAOBS5	Volume	1750 µL
Measuring Method	Absorption Cells	Base Type	Flat
Number of Windows	2	Wavelength Range	UV/VIS (190–2500 nm)
Outside Dimensions
Height	45 mm	Width	12.5 mm
Depth	12.5 mm
Inside Dimensions
Width (Inside)	5 mm	Depth (Inside)	10 mm
Center Height (Z)	8.5–20 mm	Fabrication Method	Bonded*
Package	Cell & PTFE Lid

About Bonded Fabrication

Made by bonding precision-ground quartz plates, offering excellent optical clarity and stability.
Typical path length tolerance: ±0.06–0.08 mm.
Compatible with aqueous solutions and mild solvents (avoid HF, toluene, acetone, and other strong organic solvents).

About Black Walls

Black-coated sides suppress stray light and internal reflections.
Improves signal-to-noise ratio for trace and low-signal absorbance experiments.
Ensures stable and reproducible results in demanding UV/VIS applications.

Usage Notes

Ideal for semi-micro UV/VIS absorbance measurements.
Recommended for analytical applications requiring stable baseline and high sensitivity.
Avoid long-term exposure to aggressive solvents to extend cuvette life.

Note: Black-walled bonded quartz cuvettes offer superior signal clarity and reduced background interference, making them ideal for sensitive analytical 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.