Hellma Cell 540.135-QS
The Hellma Cell 540.135-QS is a high-quality laboratory solution for scattered light measurements in a wide range of applications. Thanks to its robust quartz glass and special PTFE stopper, this cuvette is particularly suitable for demanding processes where precise optical analysis and reliable sealing are essential. Compared to conventional cuvettes, this model scores with excellent light transmission over a wide wavelength range and impresses with its durability and resistance to chemicals.
Robust design with optimal light transmission
This cuvette was specially developed for users who depend on maximum measurement accuracy. Its quartz glass is suitable for a wide spectral range from 200 nm to 2500 nm and enables accurate measurements in the UV, visible, and near-infrared ranges. The uniform transmission of the light beam through the quartz glass plays a central role, especially in scattered light analyses or precise absorption measurements.
The volume of 14,000 µl offers sufficient capacity to analyze samples in larger quantities without having to refill multiple times. With external dimensions of 75 mm in height and 20 mm in diameter, the cuvette fits easily into most standard laboratory equipment holders. Inside, the model is designed with a height of 74 mm and a diameter of 18 mm so that the sample content is evenly distributed and optimal measurement conditions are achieved. A significant advantage is the PTFE (polytetrafluoroethylene) stopper, which is characterized by high chemical resistance and largely prevents contamination inside. It also ensures a reliable seal, protecting sensitive samples from contamination. Manufacturing under strict quality and purity standards complies with relevant standards and certifications, such as DIN ISO standards. This ensures that every cuvette meets the high requirements of professional laboratories in research, industry, and quality assurance. Above all, Hellma's clear and homogeneously manufactured quartz glass is characterized by low roughness values and minimal contamination, which is particularly appreciated in optical processes in specialist laboratories.
Relevant technical features
• Quartz glass (wavelength range 200 nm – 2500 nm)
• Capacity: 14,000 µl
• External dimensions (H × Ø): 75 × 20 mm
• Internal dimensions (H × Ø): 74 × 18 mm
• PTFE stopper with high chemical resistance
• Suitable for scattered light and absorption measurements
• Complies with common laboratory and quality requirements
The combination of high-purity quartz glass and a resistant PTFE stopper opens up a wide range of applications. The model is deliberately designed to enable precise measurements over a large wavelength range. In addition, the robust construction and sophisticated design ensure a long service life – a crucial aspect in keeping running costs low in laboratory environments.
Specific application examples
This cuvette is used in numerous industries, including analytical laboratories in the pharmaceutical industry, highly specialized research institutions, quality assurance departments of chemical companies, and environmental analysis. Examples of its use include:
• Scattered light measurements of particle suspensions in materials laboratories
• Photometric determination of proteins in biochemical facilities
• Determination of turbidity and absorption in water treatment plants
• Investigation of macromolecules in research and development laboratories
This cuvette impresses with its extremely low signal distortion in spectroscopic measurements of substances such as proteins, nucleic acids, colloids, or other soluble compounds. The material is also ideal for samples with widely varying pH values or aggressive chemicals, as it is hardly affected by them.
Frequently asked questions (FAQ)
How is the cuvette cleaned?
Cleaning with suitable, non-abrasive cleaning agents or solvents is sufficient. The cuvette should then be rinsed with pure water (e.g., distilled or deionized) and dried gently.
Is the PTFE stopper heat-resistant?
Yes, PTFE retains its chemical stability even at elevated temperatures. Nevertheless, it is recommended to adhere to the temperature limits of the process used and to avoid sudden, extreme temperature changes.
Which solvents can be used?
Thanks to its chemically resistant quartz glass and PTFE stopper, this cuvette is suitable for most organic and inorganic solvents. However, users should always check in advance whether there are any specific incompatibilities with the substances used.
How are temperature changes handled?
A gradual temperature change is ideal to avoid stress in the glass. The cuvette can be brought to the desired temperature in steps and cooled gently after the measurement.
Conclusion
This cuvette offers maximum reliability, durability, and measurement precision. Whether in pharmaceutical research, materials analysis, or routine testing in industry and the environment, its wide range of applications and robust construction make it ideal for all situations that require precise optical characterization and reliable sample storage. The combination of quartz glass, large filling volume, and PTFE stopper ensures long-term stability and consistently accurate measurement results. This allows specialist laboratories to ensure that their analysis processes run smoothly and deliver valid results.
