Hellma 106-QS demountable cuvette, 0.1 mm layer thickness
The Hellma 106-QS demountable cuvette, 0.1 mm layer thickness, is a versatile special solution for precise absorption measurements in laboratory analysis. It is particularly preferred when maximum measurement accuracy is required with low sample volumes and measurements are to be carried out in the UV-Vis range up to the near-infrared range (from 200 nm to 2500 nm). Thanks to its demountable design, it allows for quick cleaning or easy replacement of window plates, which in many cases saves time and money.
Features and technical details
This model is specially designed for applications where very small sample volumes are required but the highest demands are placed on measurement quality. The QS quartz glass allows samples to be reliably analyzed in the ultraviolet, visible, and near-infrared ranges. In addition, this model stands out due to its selected layer thickness, which allows even the smallest differences in concentration to be detected. Important technical characteristics: • Layer thickness: 0.1 mm (tolerance +0.005 mm) • Volume: 26 µl
• Type: 106-QS
• Material color code: QS (quartz glass 200 nm – 2500 nm)
• External dimensions (H x W): 45 x 12.5 mm
• Thickness: 2.6 mm
• Internal width: 9 mm
The removable design consists of holders, which can be purchased separately, and loose window plates that can be removed if necessary. This design makes it easier to remove stubborn sample cloudiness or residues – a clear advantage over permanently mounted cuvette variants.
The precisely specified layer thickness of 0.1 mm (+0.005 mm tolerance) ensures high-resolution measurement results and contributes to accurate quantification of sensitive samples. The very short measurement path in combination with quartz glass minimizes signal loss and makes the cuvette the first choice for demanding measurement processes. In addition, the high-quality quartz material prevents disruptive fluorescence phenomena, which is essential for many applications in biological and pharmaceutical environments. Certifications and standards Since cuvettes are indispensable for professional laboratory environments, the manufacturer attaches great importance to quality standards and compliance with relevant standards during production. As a rule, manufacturing complies with current quality and purity standards, ensuring that the cuvette is suitable for use in highly sensitive industries. Attention is often paid to manufacturing under ISO-compliant production processes in order to ensure reliable and reproducible results in routine checks and process validations.
Application examples
- Analysis of protein concentrations: This cuvette is particularly popular for the quantitative analysis of proteins in small volumes (e.g., BSA solutions) in order to obtain reliable results even with minimal sample quantities.
- Nucleic acid determinations: The UV-compatible measuring range from 200 nm to 2500 nm is ideal for DNA, RNA, or oligonucleotide assays. The very short layer thickness generates little scattering loss, allowing low concentrations to be measured accurately.
- Pharmacological tests: In pharmaceutical laboratories, where reproducibility and accuracy are essential, this cuvette is a suitable solution for testing active ingredients for light absorption.
- Solvent testing: Thanks to adjustable holders, even substances that require intensive testing, such as organic solvents (e.g., methanol or acetonitrile), can be measured safely and then easily removed from the cuvette.
FAQs
What is the best way to clean the removable design?
• First, loosen the holder, remove the window plates, and clean all parts individually with a suitable, residue-free cleaning agent. Then rinse well with distilled water and dry.
What are the advantages of QS quartz glass?
• QS quartz glass enables measurements in a very wide spectrum from 200 nm to 2500 nm. This allows important protein edges to be detected as well as absorptions in the visible and near-infrared range.
Why is the layer thickness of 0.1 mm so important?
• A small layer thickness reduces the path length of the light through the sample with a minimal sample volume. This increases the measurement accuracy for sensitive substances and enables the detection of even the lowest concentrations.
Can the cuvette be used for residue-free applications?
• Yes, the cuvette can be dismantled for particularly thorough cleaning, virtually eliminating cross-contamination between different samples.
Which holder is suitable for this cuvette type?
• Suitable holders for the 106-QS model are available and can be ordered separately. These should always be used to ensure that the window plates are held securely in place and correctly aligned in the beam path.
Conclusion
The removable cuvette impresses with its extremely thin layer thickness, high-quality quartz glass, and flexible design. For laboratories in the fields of protein analysis, nucleic acid determination, and pharmaceutical testing, it offers the precision required to perform sensitive and high-purity measurements. Its ease of cleaning and the associated avoidance of cross-contamination make it an efficient, reliable, and economical solution. It thus meets the high expectations of everyday professional laboratory work and ensures reproducible, precise results even with the smallest sample quantities.
