(VAOB50B) 50uL Sub Micro Absorption Cuvette, Bottom Black, Bonded, 2 Windows

Weight	80 g
Brand	Qvarz
Resistant to Chemicals	No
Z dimension	15 mm

SKU: VAOB50B

(VAOB50B) 50uL Sub Micro Absorption Cuvette, Bottom Black, Bonded, 2 Windows

(VAOB50B) 50uL Sub Micro Absorption Cuvette, Bottom Black, Bonded, 2 Windows - Image 2

(VAOB50B) 50uL Sub Micro Absorption Cuvette, Bottom Black, Bonded, 2 Windows - Image 3

$71.00

In Stock

This sub-micro 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: VAOB50B Categories: All Cuvettes & Cells, Bonded Cuvettes, Cuvettes & Flow Cells, Micro Cuvettes <3.5mL, Narrow Width Cuvettes, Open Top Cuvettes, Products, Spectrometer Cuvettes Tags: open top cuvette, spectrometer cuvette, sub micro cuvette

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Description

VAOB50B Sub Micro Absorption Cuvette

The VAOB50B is a bottom-black bonded quartz cuvette designed for high-sensitivity UV/VIS absorption measurements using very small sample volumes (50 µL). Its 10 mm optical pathlength matches standard spectrophotometer holders, while the bottom-black design minimizes stray light and improves baseline stability — ideal for low-volume, low-signal absorbance assays.

Key Features

50 µL working volume — optimized for sub-micro assays and valuable samples.
10 mm optical path — compatible with standard UV/VIS instruments.
Bottom-black wall — reduces background interference and enhances signal-to-noise ratio.
2 optical windows — optimized for straight-path absorption measurements.
Bonded fabrication — ideal for aqueous or mild-buffer solutions, enabling low cost and fast customization.

Typical Applications

UV/VIS absorption spectroscopy with limited sample volume
Protein, nucleic acid, and dye concentration measurements
Enzyme kinetics and other biochemical assays
Trace-level absorbance experiments requiring reduced background noise

Bonded Fabrication Notes

Recommended for aqueous and mild buffer samples only.
Not suitable for HF, strong organic solvents, strong acids/bases, or high-temperature soaking.
Advantages: fast delivery time, customizable geometry, and lower cost.
Typical optical path tolerance: ±0.06 – 0.08 mm.
Bonded seams may discolor with strongly staining samples; not intended for pressure sealing.
For higher chemical resistance and durability, consider fused or molded types.

Cuvette Specifications

Type	Sub Micro Quartz Absorption Cuvette	Optical Path Length	10 mm
Article No.	VAOB50B	Volume	50 µL
Measuring Method	Absorption Cells	Wall Type	Bottom Black
Number of Windows	2	Wavelength Range	UV/VIS (190 – 2500 nm)
Height (Outside)	45 mm	Aperture Window (Inside)	2 × 2.5 mm
Width (Outside)	12.5 mm	Depth (Inside)	10 mm
Depth (Outside)	12.5 mm	Center Height (Z)	15 mm
Fabrication Method	Bonded*	Package	Cell & PTFE Lid

Note: VAOB50B is an excellent cost-effective option for routine aqueous absorbance measurements with minimal sample use. For stronger solvents or harsh conditions, fused or molded cuvettes are recommended.

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.