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Home Page - Products - Lab Essentials Division - Hellma - 105-202-15-40 105-20*-QS ULTRA-MICRO ABSORPTION CELLS 10mm PE Stopper/open with Pipette Tips

105-202-15-40 105-20*-QS ULTRA-MICRO ABSORPTION CELLS 10mm PE Stopper/open with Pipette Tips

Description

Hellma 105-202-15-40 Ultra Micro Absorption Cell, 10mm path Suprasil QS quartz cuvette, Z=15mm, black self-masking, only 50μL minimum volume, 200–2500 nm for UV Vis NIR ultra-micro sample spectroscopy.

Application

UV-Vis-NIR spectrophotometry testing with extremely limited micro liquid samples Biochemistry protein & nucleic acid concentration quantification Pharmaceutical micro-sample solution spectroscopic analysis Life science biological fluid & cell lysate detection Trace cosmetic raw material & dilute formulation measurement University & research laboratory trace liquid photometry Quantitative analysis of precious, low-volume aqueous biological samples

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DESCRIPTION
PARAMETERS
FEATURE

Product Description

Part No.: 105-202-15-40

Series: 105.202-QS Ultra-Micro Absorption Cuvette

Hellma 105-202-15-40 is German-manufactured ultra-micro absorption cell constructed from Suprasil® QS high-purity fused quartz glass. It adopts black self-masking coating on side walls and base, effectively suppressing stray light interference during UV-Vis-NIR absorbance testing.

Optical center height Z=15 mm, compatible with most mainstream laboratory spectrophotometers. Dual precision-polished optical windows guarantee stable, highly reproducible photometric data. Glue-free thermal fusion bonding eliminates organic leaching and sample contamination risk. Equipped with PTFE sealing stopper to avoid evaporation of scarce tiny samples. Optimized for life science, biochemistry and pharmaceutical research requiring ultra-low sample consumption.

Hellma® high precision quartz glass macro cell for absorption measurements in the UV/Vis range, 5 mm pathlength, with lid
Dimension 45 x 12.5 x 7.5mm, Wavelength 200-2500nm, Base Thickness 1.5 mm, Number of Windows 2
RoHS Conformity ja, REACH Conformity ja
Hellma® precision cuvettes are manufactured in Germany and are suitable for all common spectrophotometers.
Highest precision
Hellma® precision cuvettes are characterized by maximum precision in terms of pathlength accuracy and parallelism. This guarantees continuously reproducible measurement results.
Chemically resistant and thermally bonded
Hellma® precision cells are thermally bonded and not glued, making them highly resistant to temperatures and chemicals. This prevents unintentional leakage of liquids.
Excellent transmission
The use of a selected special optical glass gives Hellma® precision cuvettes excellent transmission > 80 % for exact measurement results.
Safe handling
Hellma® precision cuvettes have chamfered edges that enable safe and comfortable handling. The risk of chipping is also minimized.
Sustainable
Hellma® precision cuvettes can be easily cleaned and reused and therefore remain in use for a long time. A sustainable and environmentally friendly alternative!
Certified production
Hellma® precision cuvettes are manufactured in accordance with EN ISO 9001 / EN ISO 14001 and meet the highest optical standards. The declaration of conformity is available for download on the Hellma website. Further certificates (certificate of compliance 2.2 and inspection certificate 3.1) are available on request.

Brand	Hellma
Central heigt	15 mm
Layer thickness	10 mm
Material	Quartz Glass High Performance
Model	105.202-QS
Type	Ultra-Micro Cell
Volume / Package size	50 µl
Wave length	200-2500 nm

Product Feature

Key Features

✅ Material: Suprasil® QS High Performance Fused Quartz Glass✅ Spectral transmission range: 200 nm – 2500 nm (UV / Vis / NIR)✅ Optical Path Length: 10 mm✅ Black self-masking cell body, only two transparent optical windows, low stray light✅ Optical Center Height (Z): 15 mm✅ Minimum Sample Volume: 50 μL; Recommended Working Volume: 70 μL✅ Rectangular aperture: 2.5 mm × 2 mm✅ Dual precision polished optical transmission windows✅ Glue-free thermal fusion construction, no contamination risk✅ Standard 12.5 mm width, universal spectrophotometer compatibility✅ Supplied with original PTFE sealing stopper✅ Made in Germany

· Extremely high parallelism of optical windows with a maximum tolerance of ±0.01 mm

· Exceptional optical path length accuracy up to 0.003 mm (3 µm), ensuring high dimensional accuracy and reproducible measurement results

· Outstanding surface flatness of optical windows: 0.001 mm (1 µm)

· Excellent temperature stability and chemical resistance, achieved by thermally bonded individual components (effectively monolithic structure)

· Minimum guaranteed transmittance of 82% from 200 nm to 3500 nm (subject to material specifications)

Cuvettes are not all the same, even if they sometimes appear identical. The difference lies in the details and can be crucial for measurement results. Take our cuvette windows, for example, which boast outstanding quality and a flatness tolerance of more than 0.001 mm (1 μm). The parallelism of both window surfaces relative to one another is just as important. Our high-precision production guarantees that the frontal deformation of the wave of a cuvette window is less than 4 lambda, which works out at approximately 0.001 mm (1 μm) if lambda = 546 nm. The high level of flatness demonstrates that the cuvettes from Hellma Analytics are setting standards. Overall, an ideal foundation for conducting reliable, reproducible and exact measurements.

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Hellma 105-202-15-40 Ultra Micro Absorption Cell, 10mm path Suprasil QS quartz cuvette, Z=15mm, black self-masking, only 50μL minimum volume, 200–2500 nm for UV Vis NIR ultra-micro sample spectroscopy.

Technical Specifications

Key Features