Inhaltsverzeichnis
Cuvettes are tube-like containers used to hold samples for spectroscopic analysis that delivers accurate and reliable results. They are made from quartz, plastic, polycarbonates or glass in various sizes and are scratch-resistant. Disposable cuvettes are preferred to prevent carry over of samples. Quartz cuvettes are specifically used for measuring absorbance in the UV range and plastic cuvettes for the visible light path range. CLICK HERE to download the Cuvettes and Cells Catalog which includes part numbers and descriptions for the same items you can directly order below. All cuvettes and cells are provided in matched sets and available with fitted covers, plugs, screw caps, anaerobic screw caps, graded seals and flow through ports.
All spectrophotometer cells are completely fused without the use of low melting intermediate glasses or cements. In other words, quartz is fused to quartz and glass is fused to glass. This eliminates strains due to differences in coefficients of expansion found in cells fused with intermediate low melting temperature glasses. Because of the fused construction, the window joints of ICL spectrophotometer cells are unaffected by all types of cleaning solutions.
- "Tandem cuvettes" have a glass barrier medium that extends two-thirds of the way up in the middle, so that measurements can be taken with two solutions separated and again when they are mixed.
- We offer a full range of high quality cuvettes and cells for use in a wide range of applications and instruments including the Spectrophotometer, Fluorometer, Tintometer and the Polarimeter.
- Apart from these characteristics, there is another benefit of quartz, i.e., the highest temperature resistance.
For fluorescence measurements, two more transparent sides, at right angles to those used for the spectrophotometer light, are needed for the excitation light. Some cuvettes have a glass or plastic cap for use with hazardous solutions, or to protect samples from air. Reusable cells are expensive to buy, are easily broken , and must be thoroughly washed between each use.
Industrial Solutions
Our products support state requirements for NGSS, AP, and more. Transparent to the wavelength of light required for the purpose. Absorbance studies have become a base for examining various solutions and particles. Under these, the light gets passed through the solutions in a defined format. BrandTech also manufacuresUV CuvettesandVis (PS/ PMMA) Cuvettes. PS and UV-cuvettes can be used in temperaures up to 70 °C.
Before the rectangular cuvette was created, ordinary test tubes were used. As innovation motivated changes in technique, cuvettes were constructed to have focal points over ordinary test tubes. "Tandem cuvettes" have a glass barrier medium that extends two-thirds of the way up in the middle, so that measurements can be taken with two solutions separated and again when they are mixed.
One Standard Glass Flowing Cuvette Type G, 10 Mm Light Path, 2
Consider how different sizes and optical materials will influence your processes and choose the appropriate type to get precise results. The cuvette must match your application to yield accurate information on concentration and purity. In order to choose one, the specific use and equipment have to be defined. For example, plastic may not be efficient for UV-range experiments, but it is a cost-effective alternative for all the visible light studies. Plastic cuvettes are often used in fast spectroscopic assays, where high speed is more important than high accuracy. Plastic cuvettes with a usable wavelength range of 380–780nm may be disposed of after use, preventing contamination from re-use.
Disposable Cuvette
Cuvettes to be used in circular dichroism experiments should never be mechanically stressed, as the stress will induce birefringence in the quartz and affect the measurements made. All of our cuvettes also come with a range of lids and stoppers including PTFE cuvette size lids and PTFE stoppers. The sample type and the processes you intend to complete can influence your cuvette selection.