Hellma Half Micro Cuvette 176.000-QS, 50 mm SD/15 mm ZH
The Hellma Half Micro Cuvette is particularly suitable for demanding absorption measurements in the laboratory environment. With a layer thickness of 50 mm and a center height of 15 mm, it allows for the precise analysis of a wide variety of samples. Compared to standard cuvettes, it is specially optimized for semi-micro volumes and flow-through applications. At the same time, it impresses with its robust quartz glass construction and enables measurements over a wide spectral range from 200 nm to 2500 nm.
Detailed description
This cuvette is an indispensable tool for laboratories that need to perform reproducible, high-quality optical measurements in a wide variety of fields. Thanks to the quartz glass (QS) and precise workmanship, high light transmission is guaranteed even with small sample volumes. In addition, the robust external dimensions (45 x 12.5 x 12.5 mm) reduce the risk of damage in everyday laboratory use. The design with inlet and outlet connections also allows flow measurements without having to constantly fill or change samples manually.
The cuvette has two measuring windows of equal size, which allow for smooth absorption measurement. In practice, this allows the measuring beam to pass unhindered through the sample medium while simultaneously performing the reference measurement with precision. The 15 mm center height allows for optimal positioning in the beam path of various spectrometers and UV/VIS photometers. Especially in high-end laboratories in pharmaceutical and environmental analysis, the high transparency and precisely defined layer thickness of 50 mm offer improved accuracy and stability in data collection. The volume of 2250 µl (2.25 ml) also allows larger sample quantities to be measured reliably.
Key technical features
• Layer thickness: 50 mm
• Center height: 15 mm
• Material: Quartz glass (200 nm – 2500 nm)
• Volume: 2.25 ml
Other specifications, such as the aperture of 11 x 4 mm and the external dimensions of 45 x 12.5 x 12.5 mm, are designed to provide an optimized balance between ease of use and precision. The use of high-quality quartz glass ensures first-class optical quality, minimal light loss, and the best possible resistance to chemical influences. This makes the model particularly durable and suitable for universal use in many laboratory areas, from routine analyses to demanding research projects.
Compliance with current quality and safety standards is also of great importance. Production in accordance with certified procedures and current standards such as ISO 9001 ensures consistently high manufacturing quality. This enables precise measurement results even under repeated test conditions.
Application examples
• Pharmaceutical research: Quantification of active ingredients in solutions, purity tests, verification of dissolution behavior. • Environmental analysis: Investigation of water properties and determination of pollutant concentrations (e.g., nitrate, phosphate, or organic compounds).
• Life sciences: Analysis of proteins, nucleic acids, or enzymes in semi-microscopic volumes.
• Chemical laboratories: Determination of concentrations in dye solutions, qualifications in the petrochemical industry, or verification of reaction processes.
Since the cuvette has an inlet and outlet, continuous measurements can be performed without interrupting the sample environment. Especially in the case of time-dependent reactions or sensitive biological samples, this feature contributes to reliable results and simplified handling.
FAQs
How do I clean the cuvette correctly?
Cleaning is usually carried out with mild cleaning or disinfecting solutions, followed by repeated rinsing with distilled water. It is then recommended to dry with filtered air or absorbent, lint-free cloths to avoid residues.
Is the cuvette suitable for UV measurements?
Yes. Thanks to the quartz glass, the semi-micro cuvette is designed for wavelengths from 200 nm to 2500 nm and is therefore also suitable for UV absorption measurements.
Which samples are ideal for the semi-micro cuvette?
For example, substances that are only available in small quantities, such as rare or expensive solutions. Samples that need to be measured continuously in a flow-through system also benefit from the adapted design and the inlet and outlet ports.
Does the layer thickness of 50 mm affect the measurement accuracy?
A greater layer thickness can increase the sensitivity of measurements, as the light travels a longer distance through the sample. This contributes to improved measurement results overall, especially when the concentration of the substances to be measured is comparatively low.
Conclusion
Thanks to its robust quartz glass, defined layer thickness, and integrated flow option, this well-designed cuvette provides high reliability in absorption measurements. Its design is tailored to semi-micro applications and offers maximum flexibility for various application scenarios, from pharmacology to environmental analysis. With a wide spectral range and recommended cleaning and maintenance practices, its performance is maintained over the long term. This makes the model perfect for demanding measurements in the laboratory, achieving more accurate results and increased efficiency.
