(VAOB300B) 300uL Sub Micro Absorption Cuvette, Bottom Black, Bonded, 2 Windows

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

SKU: VAOB300B

(VAOB300B) 300uL Sub Micro Absorption Cuvette, Bottom Black, Bonded, 2 Windows

(VAOB300B) 300uL Sub Micro Absorption Cuvette, Bottom Black, Bonded, 2 Windows - Image 2

(VAOB300B) 300uL 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: VAOB300B Categories: All Cuvettes & Cells, Bonded Cuvettes, Cuvettes & Flow Cells, Micro Cuvettes <3.5mL, Narrow Width Cuvettes, Open Top Cuvettes, Products, Spectrometer Cuvettes, Sub-Micro Cuvettes Tags: open top cuvette, spectrometer cuvette, sub micro cuvette

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Description

VAOB300B Sub Micro Absorption Cuvette

The VAOB300B is a bottom-black bonded quartz cuvette designed for sub-micro volume UV/VIS absorption measurements. With a 10 mm optical pathlength and a 300 µL sample capacity, this cuvette offers a balance between low sample consumption and enhanced light collection for sensitive assays. The black bottom wall effectively reduces stray light, improving signal stability and measurement accuracy.

Key Features

300 µL working volume — suitable for sub-micro absorbance measurements with higher sample stability.
10 mm optical pathlength — compatible with standard UV/VIS spectrophotometer holders.
Bottom-black wall — reduces reflections and enhances signal-to-noise ratio in low-absorbance experiments.
2 optical windows — optimized for straight-path absorbance detection.
Bonded fabrication — cost-efficient, with short lead time, best for aqueous and mild-buffer solutions.

Typical Applications

UV/VIS absorbance spectroscopy
Protein and nucleic acid quantification
Low-concentration dye and biomolecule analysis
Enzyme kinetics and biochemical assays

Bonded Fabrication Notes

Recommended for aqueous or mild buffer media only.
Not suitable for HF, strong acids/bases, strong organic solvents, or high-temperature soaking.
Advantages: low cost, fast customization, short lead time.
Typical optical path tolerance: ±0.06 – 0.08 mm.
Bond seams may discolor with strongly staining samples; not intended for pressure sealing. For harsh solvents or long-term durability, consider fused or molded fabrication.

Cuvette Specifications

Type	Sub Micro Quartz Absorption Cuvette	Optical Path Length	10 mm
Article No.	VAOB300B	Volume	300 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 × 15 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: VAOB300B is a cost-efficient solution for UV/VIS absorbance with moderate sample volume.
For applications requiring higher chemical resistance, durability, or solvent compatibility, consider fused or molded quartz alternatives.

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.