Hellma Micro-Cuvette 115-QS, 10 mm layer thickness
The Hellma Micro-Cuvette 115-QS, 10 mm layer thickness, is a precise laboratory instrument for demanding absorption measurements in research, development, and quality control. Thanks to its robust quartz glass and special manufacturing process, this product is particularly suitable for UV/VIS spectroscopy, whereby even samples with low volumes can be reliably analyzed. Compared to other cuvettes on the market, this model impresses with its high-quality material and careful workmanship, which enables consistent measurement results and ensures a long service life.
High quality for precise measurements
This micro cuvette is the ideal choice for professional users who require precise data in routine tests or complex scientific projects. Made from high-quality quartz glass (QS), which covers a wide transparency range from 200 nm to 2500 nm, it offers the necessary stability and light transmission for a wide range of applications. The 10 mm layer thickness is designed to achieve reproducible measurement results even with the smallest sample volumes. At the same time, the supplied PTFE (polytetrafluoroethylene) stopper allows for clean handling and safe, loss-free storage of the sample.
Careful production ensures smooth, homogeneous inner surfaces, so that hardly any sample residues can adhere. In addition, the robust quartz glass housing facilitates cleaning and sterilization of the cuvette. The inner width is only 2 mm, which helps to conserve costly or rare samples by requiring only a minimal volume of 400 µl. For maximum precision, there are also two optical windows, allowing measurements to be taken from two sides. Technical details at a glance • Type: 115-QS • Material range: Quartz glass 200 nm – 2500 nm • Layer thickness: 10 mm
• Volume: 400 µl
• External dimensions (H x W x D): 40 x 12.5 x 12.5 mm
• Base thickness: 1.25 mm
• Internal width: 2 mm
• Number of windows: 2
In addition to these core features, a PTFE plug is included, which is characterized by both chemical resistance and temperature stability. The quartz glass used, also known as QS, ensures excellent transmission across an extremely wide spectral range. This enables its use in measurements in the ultraviolet, visible, and near-infrared spectrum—an important feature when it comes to complex investigations in fields such as biotechnology, biochemistry, or pharmaceutical research. Certifications and standards
Hellma is a renowned supplier of cuvettes and its products generally comply with the relevant requirements for laboratory equipment. Quartz glass products of this type are typically manufactured in accordance with current quality standards and are CE-compliant. If required, the cuvette can also be subject to various ISO standards to ensure reliable compatibility with common laboratory instruments.
Specific application examples
- Protein analysis: Thanks to its narrow internal width, the 115-QS model is ideal for examining protein solutions, for example when determining extinction values during enzyme studies.
- Nucleic acid measurement: Precise DNA and RNA quantifications are crucial in molecular biology research. The cuvette supports measurements in the UV range while ensuring minimal sample waste.
- Photometry in the pharmaceutical industry: When developing new active ingredients or ensuring the quality of existing products, absorption measurements provide essential data that can be accurately evaluated thanks to the reliable consistency of this cuvette.
- Food analysis: In the food industry, the cuvette can be used to detect certain ingredients or to check the purity of samples, for example, to measure dyes or contaminants.
Frequently asked questions
How do I clean the cuvette properly?
Ideally, cleaning should be carried out with standard laboratory rinsing solutions or 70% ethanol. The cuvette should then be rinsed with ultrapure water and dried carefully. Ultrasonic treatment can be helpful for stubborn residues.
Is quartz glass resistant to aggressive chemicals?
The quartz glass used is characterized by very high chemical resistance. Nevertheless, a preliminary test is always recommended for highly corrosive chemicals in order to rule out any material damage at an early stage.
Can I sterilize the cuvette in an autoclave?
Yes, the robust quartz glass can withstand high temperatures and can normally be autoclaved without risk. The PTFE stopper supplied is also suitable for many sterilization methods.
How can I avoid measurement errors when working with small sample volumes?
Ensure that the sample liquid is evenly distributed in the cuvette and that no air bubbles form. Also, use calibrated pipettes to precisely measure the desired volume.
Conclusion
This micro cuvette meets demanding requirements in laboratories, research, and industry. The quartz glass ensures high measurement accuracy and remarkable resistance to a wide range of samples. The minimal sample volumes required conserve valuable substances while achieving precise results. The practical PTFE stopper also contributes to clean working and safe storage of sensitive media. This makes this cuvette model a first-class choice when it comes to reliable and reproducible absorption measurements in laboratories of various disciplines.
