Hellma Compact Cell 176.700-QS, 2 mm layer thickness
The Hellma Compact Cell 176.700-QS, 2 mm layer thickness, is a high-quality special cell for precise absorption measurements in a wide variety of laboratory environments. Thanks to its robust quartz glass and precise layer thickness, it ensures reliable and reproducible measurement results. Compared to many common cuvettes, it offers an exceptional combination of low sample volume, wide measuring range, and chemical resistance, providing optimal support for demanding applications in research, quality control, and industrial processes.
Maximum reliability for absorption measurements
This cuvette has been specially developed to deliver highly accurate and consistent measurement data. The quartz glass used covers a wide wavelength spectrum from 200 nm to 2500 nm, which is particularly advantageous in laboratories that perform UV/VIS analyses and near-infrared measurements. The low layer thickness of only 2 mm is ideal for samples where a particularly high light intensity is desired without compromising signal quality.
In addition, the cuvette has two screw connections in the standard size M6 x 1, which are a perfect fit for the supplied FEP tubes (outer diameter 1.9 mm, inner diameter 1.1 mm, length 500 mm). FEP (fluoroethylene propylene) is an extremely resistant material that is generally very resistant to chemical influences, making it ideal for use in laboratories. The high transparency of the quartz glass and the precision of the connections result in particularly stable measuring conditions, ensuring reliable results and low measurement deviations.
Key technical features
• Layer thickness: 2 mm
• Volume: 124 µl
• Material: Quartz glass (200 nm–2500 nm)
• External dimensions (H x W x D): 35 x 12.5 x 12.5 mm
• Aperture (H x W): 17.5 x 3.5 mm
• Number of windows: 2
• Two M6 x 1 screw connections including FEP hoses
In addition, the comparatively compact design measuring 35 x 12.5 x 12.5 mm offers sufficient stability to remain operational for a long time, even with frequent handling in everyday laboratory use. The aperture of 17.5 x 3.5 mm enables optimal illumination of the sample. By guiding the incident light through two precisely ground windows and only through the liquid itself, a very high degree of measurement accuracy is achieved. For laboratories with limited sample volumes, the cuvette proves to be extremely helpful, as it requires only 124 µl of sample content. This represents an enormous material saving, especially for expensive or hard-to-obtain substances, without compromising on reliable detection.
Certifications and standards
As Hellma is known for its high quality standards, this cuvette benefits from strictly controlled manufacturing processes. Laboratory-grade quartz glass usually meets fundamental industry standards and norms—for example, in terms of light transmission, temperature resistance, and material purity. Users can therefore rely on consistently high product quality.
Thanks to its advanced properties, this model is used in a variety of specialist areas:
• Water analysis: For the photometric determination of nitrites, phosphates, or heavy metals in low concentrations.
• Pharmaceutical research: For the precise analysis of active ingredients in the UV range and for stability tests.
• Environmental and food analysis: For the accurate determination of color and turbidity substances or for the detection of contamination.
• Bioanalysis: Perfect for enzyme kinetics measurements with comparatively small sample volumes (e.g., proteins, peptides).
The robust quartz glass and FEP tubing allow the sample solution to be passed through safely without leakage or contamination. The cuvette also ensures reliable UV/VIS transmission even in particularly sensitive applications.
Frequently asked questions (FAQ)
What is the best way to clean the cuvette?
Rinsing with suitable laboratory cleaners or mild acids is usually sufficient. Then rinse with distilled water and dry with ethanol or acetone if necessary.
Which substances can be measured?
In principle, a wide range of samples in the UV and visible range: These include DNA/RNA samples, proteins, dyes, chemical intermediates, and many more. The wavelength requirements are always decisive.
Is the cuvette temperature-resistant?
Quartz glass is highly resistant to temperature fluctuations. Nevertheless, sudden extreme temperature influences should be avoided in order to prevent stress cracks in the material.
Can several tubes be connected at the same time?
Two screw connections are available. Usually, one opening is used as an inlet and the other as an outlet to ensure a continuous sample flow.
Conclusion
The compact cuvette 176.700-QS impresses with its robust quartz glass construction, low layer thickness of 2 mm, and well-thought-out design with M6 x 1 connections. Particularly noteworthy are the FEP tubing, which enables a secure, chemically resistant connection, and the low sample volume of 124 µl. This makes this cuvette perfect for laboratories that perform precise measurements in the UV/VIS range with sensitive or expensive substances. Overall, it offers a durable, reliable solution for a wide range of analytical requirements.
