Hellma Macro Cuvette 175.000-QS, 10 mm SD/ 8.5 mm CH
The Hellma Macro Cell 175.000-QS, with a layer thickness of 10 mm and a center height of 8.5 mm, is a high-quality solution for precise laboratory applications in spectrophotometry and absorption analysis. Its advantage over comparable cuvettes lies in its precise manufacture from quartz glass, which covers a broad wavelength range from 200 nm to 2500 nm and thus offers versatile application possibilities. Scientists and laboratory staff benefit from exceptionally high reproducibility of measurement data and durable material quality, which ensures reliable operation in everyday use.
Precise absorption measurements for optimal results
The combination of quartz glass, precise layer thickness, and practical inlet and outlet ports allows this macro cuvette to be used in demanding laboratory areas where accurate results are essential. With a layer thickness of 10 mm, this cuvette provides sufficient measurement path length to reliably analyze both concentrated and highly diluted samples. The external dimensions of 38.5 x 12.5 x 12.5 mm are ideally matched to standard spectrometers and ensure smooth handling.
The center height of 8.5 mm is specially designed for common beam paths in spectrophotometers. This ensures that samples are optimally penetrated by the measuring light, which is essential for guaranteeing consistent measurements and reliable calibration. Thanks to the integrated inlet and outlet connections, liquids can be exchanged quickly and continuous flow measurements can be carried out particularly efficiently.
Key technical data
• Quartz glass for 200 nm to 2500 nm
• 10 mm layer thickness for sufficient path length
• 8.5 mm center height for standard beam paths
• Volume of 750 µl
• External dimensions of 38.5 x 12.5 x 12.5 mm
• 2 optical windows for precise absorption measurements
• With inlet and outlet connections for flow analyses
Further details such as the compact aperture (11 x 6.5 mm) illustrate that even smaller light beams can be used efficiently. The robust construction ensures a high degree of resistance to typical laboratory reagents. Thanks to its QS material color code, this cuvette is clearly identified as a quartz glass version: The material is suitable for UV, visible, and NIR ranges. This allows laboratories to cover different protocols with just one cuvette type, which simplifies processes and saves costs. The manufacturer sets the highest standards for quality assurance, which is usually underpinned by internal quality standards and global certifications. For laboratories that work according to DIN EN ISO standards (e.g., DIN EN ISO 9001), it is particularly helpful that the production of these cuvettes is subject to continuous controls to ensure reproducible results and reliable material quality.
Typical areas of application
In many laboratories, this macro cuvette is used where both reliable and fast measurements are required. Some typical examples:
• Quantitative UV/VIS analyses for pharmaceutical active ingredient testing
• Biotechnological and medical research, e.g., enzyme tests and DNA/RNA quantification
• Food analysis to determine proteins, colorants, and preservatives
• Environmental monitoring to measure nutrient content in water samples and wastewater analysis
The stable construction opens up a wide range of applications, as it retains its optical properties even under intensive use. With frequent flow of aggressive media, such as acidic or alkaline solutions, quartz glass shows high resistance to chemical stress.
FAQs
What is the best way to clean the cuvette?
Gentle cleaning with a suitable cuvette cleaning agent or high-purity water is recommended. It is then advisable to rinse with acetone or 2-propanol to remove any residues. For stubborn dirt, a UV lamp can be used for photochemical cleaning.
Can highly concentrated samples also be measured?
Yes, thanks to the optimal layer thickness and the quartz glass material, highly concentrated samples can be measured in the UV and visible range. However, if excessive absorption is expected, dilution may be useful to improve the measurement dynamics.
Which samples are particularly suitable?
All samples that need to be analyzed in a wavelength range from 200 nm to 2500 nm are suitable. These include proteins, nucleic acids, pharmaceutical agents, and various inorganic solutions. In addition, the macro cuvette with inlet and outlet connections offers advantages for flow measurements of liquid samples.
Does anyone need special accessories?
As a rule, a standard cuvette shaft designed for the external dimensions and center height is sufficient. Due to its standard dimensions, the cuvette can be accommodated in common spectrophotometer models. Connection nozzles for inlet and outlet hoses are usually included with laboratory equipment or are available from accessory retailers.
Conclusion
This cuvette is the ideal choice for laboratories that require high-quality, reproducible measurements. Thanks to its quartz glass design, specially coordinated center height, and integrated connections for flow analysis, it is suitable for a wide range of applications in research, development, and routine analysis. The exact layer thickness and wide wavelength range guarantee precise and meaningful spectrophotometry results. At the same time, the robust design and chemical resistance ensure a long service life.
