Hellma Ultra Micro Cell 105.252-QS, 1.5 mm SD/8.5 mm ZH
The Hellma Ultra-Micro-Cuvette 105.252-QS, 1.5 mm SD/8.5 mm ZH is particularly suitable for high-precision analyses when the smallest sample volumes are to be measured using spectroscopic or fluorescence-based methods. Thanks to its low sample requirements, it enables efficient and reliable data collection without wasting valuable substances unnecessarily. Its high-quality quartz glass makes it superior to many standard cuvettes, as it covers a wide wavelength range (200 nm to 2500 nm) and thus enables a wide variety of applications in the laboratory.
Precise solutions for demanding measurements
This cuvette impresses with its combination of robustness, minimal sample requirements, and precise manufacturing. It is particularly relevant in areas where highly sensitive results are required, such as in the quantification of nucleic acids or proteins. Its sophisticated design ensures that the incident light is guided evenly through the sample and that disruptive influences are minimized. In addition, the included PE (polyethylene) stopper reduces the risk of sample loss and potential contamination.
In order to provide optimal support to research institutions, QA laboratories, and other users, in addition to high optical quality, attention was also paid to ensuring an exact center height of 8.5 mm. This ensures compatibility with common spectrophotometers and also enables precise positioning in the sample chamber. Even in demanding routine applications or in research, the excellent optical properties prove to be valuable.
Technical highlights
• Layer thickness: 1.5 x 1.5 mm
• Center height: 8.5 mm
• Quartz glass for 200 nm to 2500 nm
• Volume: 12 µl
• External dimensions (H x W x D): 45 x 12.5 x 12.5 mm
• Aperture (H x W): 5 x 1.5 mm
• Number of windows: 3
In addition to these key data, the design also supports reliable measurements in fluorescence applications because the interior has been specially developed for maximum light transmission. The cuvette can also be cleaned quickly, which significantly reduces the risk of carry-over effects. Thanks to its quartz glass construction, it is resistant to a wide range of chemical reagents, enabling flexible application scenarios in a wide variety of laboratory environments.
Relevant norms and quality standards
Quartz glass cuvettes from Hellma are manufactured according to strict production processes and are often used in standardized procedures (e.g., according to ISO standards for laboratories). This product meets high quality requirements in terms of optical purity, material quality, and manufacturing tolerances. Users benefit from consistently reproducible results and the durability of the cuvette, even with frequent use.
Application examples
- Measurement of DNA and RNA concentrations in molecular biology: The low layer thickness and low volume facilitate accurate results, especially with sensitive samples such as plasmids or cDNA.
- Protein analysis in biochemistry: The ultra-thin layer thickness is ideal for protein assays with low starting quantities, minimizing losses.
- Trace analysis in environmental research: The cuvette complements studies in which only very limited sample material is available, such as rare or expensive substances.
- Fluorescence measurements in chemistry labs: Thanks to its excellent transmission in the UV and visible range, reliable and interference-free fluorescence detection is possible.
The cuvette is also used when sensitive substances such as NADH, fluorescein, or other fluorogenic substances need to be detected. In all these cases, precise manufacturing ensures that both sensitivity and reproducibility meet the high demands of modern laboratories.
FAQs
What is the best way to clean the cuvette?
Gentle cleaning with mild detergents or special cuvette-specific solutions is recommended. Hard brushes should not be used to avoid scratching the sensitive windows. Finally, rinse thoroughly with ultrapure water and dry carefully.
Which light sources are suitable for measurements?
Due to the wide wavelength range between 200 nm and 2500 nm, a variety of different light sources can be used, including UV lamps, halogen lamps, or xenon flash lamps.
Can this cuvette be used for standard photometers?
With a center height of 8.5 mm, it fits into many common spectrophotometers. Nevertheless, it is advisable to check the manufacturer's specifications for the respective device before use to ensure error-free adjustment.
How can sample loss be prevented with very small volumes?
The PE stopper supplied minimizes evaporation and ensures that no splashes occur during measurement. It is also advisable to pipette the samples carefully and centrally and, if necessary, to allow a short waiting time for the sample to settle.
Conclusion
This high-quality ultra-micro cuvette made of quartz glass is ideal for precise, repeatable results with minimal sample consumption. Its low layer thickness, low volume, and exact center height make it an indispensable companion in research laboratories, biotech companies, and institutes that place the highest demands on their spectroscopic or fluorescence-oriented analyses. Especially where sample scarcity or exceptional sensitivity are required, it impresses with its robust workmanship, high purity, and unparalleled measurement stability.
