Hellma Macro Cuvette 165-QS, 1 mm layer thickness
This macro cuvette is ideal for demanding absorption measurements in a wide spectral range from UV to near infrared. Thanks to its quartz glass, samples in the range from 200 nm to 2500 nm can be analyzed precisely. With its temperature-stable design and PTFE plugs, it is a reliable choice for achieving reproducible and contamination-free results in laboratory environments. Compared to similar products on the market, it impresses with its robust workmanship, high quality, and compact 1 mm layer thickness, which offers clear advantages when sample quantities are limited.
Application and special features
The macro cuvette described here is specifically tailored to the requirements of modern laboratory analysis. Its 1 mm layer thickness enables a very short optical path length, allowing even highly concentrated samples to be measured reliably without the need for additional dilution. At the same time, quartz glass is not only chemically very resistant, but also has excellent transmission in the UV and visible range. This makes it suitable for both high-quality UV-VIS spectroscopy and applications in the near IR spectrum. • Type: 165-QS
• Material color code: QS (quartz glass 200 nm – 2500 nm)
• Layer thickness: 1 mm
• Volume: 160 µl
• Outer diameter: 22 mm
• Inner diameter: 9 mm
• Number of windows: 2 In addition to the data mentioned, users benefit from the sophisticated design with two ground joints that can be securely closed with PTFE plugs. The plugs also enable reliable temperature control, as the cuvette can be heated or cooled in a suitably equipped spectrometer, for example, without any liquid or gas escaping. This feature is particularly interesting for analyses in which the thermal stability of the sample plays an important role. The small cross-section and virtually dead space-free sample chamber ensure that the temperature control is as uniform and efficient as possible. The outer depth of 30 mm further contributes to easy handling.
The cuvette is manufactured in accordance with standard laboratory standards, which enable sterilization and high-purity processing. In many institutional, pharmaceutical, and industrial laboratories, quartz glass cuvettes must be compatible with recognized standards, which is why requirements such as DIN EN and internal quality specifications are generally applied. This type of cuvette is representative of solid and durable laboratory equipment that is characterized by precision and reliability.
Application examples
• Quantitative analysis of nucleic acids and proteins in the UV range (e.g., at 260 nm or 280 nm) for biotechnological research.
• Precise determination of chemical substances such as dyes or metals in the visible spectrum for environmental analyses. • Pharmaceutical tests to examine active ingredients at defined temperatures and determine their stability. • Process-accompanying quality controls in industrial laboratories where only small sample quantities can be used.
FAQs
What is the best way to clean the cuvette?
Preferably use rinsing solutions and, if necessary, a mild cleaning agent. Then rinse with distilled water and, if necessary, ethanol to remove any residues.
Can I use the cuvette for temperature gradients?
Yes, the stoppers and quartz glass are temperature-stable, so samples can be measured at different temperatures without compromising the seal.
What are the optimal sample volumes?
The cuvette can hold up to 160 µl. It is therefore designed for small volumes, but still allows the addition of buffers or reagents.
Is it compatible with all common spectrometers?
Thanks to its standardized dimensions and cuts, it can be used with most commercially available UV-VIS and NIR spectrometers, provided that the holders are designed for a layer thickness of 1 mm.
Do I need to handle the cuvette differently for sensitive samples?
Avoid unnecessary contact with the optical windows; wear gloves if necessary and hold the cuvette by the matte area to reduce contamination.
Conclusion
The Hellma 165-QS macro cuvette with a layer thickness of 1 mm offers laboratory professionals an excellent and versatile solution for absorption measurements in the spectral range from 200 nm to 2500 nm. Its precision-manufactured quartz glass, thermal resistance, and ability to examine samples in very small volumes make it an indispensable tool in research, development, and quality control. The PTFE plugs and robust design ensure reliable handling and a long service life. This makes it an ideal option when maximum measurement accuracy and optimum sample integrity are required and temperature control plays a decisive role.
