Quartz is expensive in comparison with glass and transparent plastics but has the additional benefit of covering both UV and visible regions right from 190 nm. However, it is even more fragile than glass and the cuvettes need to be handled with greater care. Fused quartz cells are used for wavelengths below 380 nm, i.e. ultraviolet light. Quartz cells provide more durability than plastic or glass. Quartz excels at transmitting UV light, and can be used for wavelengths ranging from 190 to 2500 nm.
- Our IR quartz cuvettes offer excellent transmittance across the near-IR, short-IR, and mid-IR spectra.
- Made from JGS3 UV-grade fused silica, absorption onset occurs below 170 nm with exceptionally high transmission across UVB, UVA, visible, near IR, and notibly short IR.
- For fluorescence measurements, two more transparent sides, at right angles to those used for the spectrophotometer light, are needed for the excitation light.
- Irrespective of the material selected it must be borne in mind that cuvettes, except for transparent plastic cuvettes, are fragile and require careful handling.
- Contrarily, scattering and fluorescence applications require the signal to be measured at 90 degrees to the light beam.
The cuvette path length is the interior distance between a cuvette’s parallel optical windows that a particular wavelength of light must traverse through. Spectrometers have a standard chamber size in which the cuvette is placed during chemical analysis. That’s why it is essential to select a cuvette that will accommodate your spectrometer’s chamber size. Glass cells are most common in school and college undergraduate laboratories because of their lower cost. Optical glass shows absorbance throughout the visible and IR regions extending from nearly 340 nm to 2500nm covering majority of organic and in inorganic species. However, glass absorbs strongly in UV region and its application is not recommended for wavelengths below 340 nm.
We understand today's need of high quality supplies for your laboratory and that laboratories are in a budget, so we provide you quality cells at a very affordable price. If you have any concerns or questions as to compatibility with your spectrophotometers or fluorometers please contact MxRady Lab Solutions for exact specifications on all of our cuvette products. In this guide, we will explore what a cuvette is and various aspects to consider when choosing the right type of instrument for your spectroscopy applications.
Lab4us Quartz Micro Cuvette Cell Black Walls
Besides the in-stock UV quartz cuvettes listed below, we do many custom orders. Please specify your material and dimension requirements with our sales representative. Cuvette cells are used to hold liquid samples for spectroscopic measurements.
Absorbance or transmission determinations shine spectrometer light directly through the cuvette to measure the amount of light spectrophotometer cuvette size absorbed or transmitted through the sample. In this measurement configuration, the opposite-side cuvette walls must be optically "clear" to let light pass unimpeded through the sample. The other two sides of the cuvette are often "frosted" to allow handling of the cell without dirtying the optical surfaces of the other two "measurement" sides of the cuvette. These are known as "two sides clear" or absorbance cuvettes. When youpurchase cuvettes for spectroscopy, you will find a diverse selection of premium-quality options.