Inhaltsverzeichnis
REFLEX Analytical offers a comprehensive selection of UV-Vis-NIR cuvettes and cells precision fabricated from high quality UV Quartz, IR Quartz and glass materials. Most absorption cuvettes have two clear windows to allow maximum light transmittance through the sample linearly. Contrarily, scattering and fluorescence applications require the signal to be measured at 90 degrees to the light beam. For example, fluorescence volume of a cuvette cuvettes have all four sides polished to help with successful fluorescence experiments.
- If you can’t find what you are looking for, we can also supply custom cuvettes to match your design and exact specifications.
- All of the cuvettes and cells that we supply are produced only from the highest quality quartz and optical glass.
- Featuring light transmissions ranging from 180 nm to 2000 nm and manufactured from high quality materials, cuvettes from Pipette.com are the ideal choice.
- You can achieve a ten-times reduction in absorbance by simply swapping cuvettes, rather than wasting time and solvent by needing to dilute your solutions.
They are also inexpensive and are almost unbreakable with normal handling and use. Their low-end UV transmission cutoff depends on the cuvette material used, as does their organic solvent resistance. All plastic cells are fine to use with water but are only useful with a select set of organic solvents. See below for solvent compatibility and spectral range details. These cuvettes are made from Optical Glass which is suitable for transmission wavelengths from 340nm to 2,500nm and are available in a range of path lengths.
Uv
This precise value is used as the sample pathlength in the Beer's Law calculation to determine solution concentrations. For solutions with absorption coefficients that are too high for a standard path length cuvette, we have cuvettes with path lengths as short as 1 mm. You can achieve a ten-times reduction in absorbance by simply swapping cuvettes, rather than wasting time and solvent by needing to dilute your solutions. IR quartz cuvettes are suitable for wavelengths from 250nm to 3,500nm. Sub-micro cuvettes hold a measuring volume of 20 microliters (µl) to 350 µl. This cuvette is designed to measure through a specific z dimension, so it must match the beam’s height.
Lab4us Quartz Micro Cuvette Cell Black Walls
Cuvettes are a type of vessel necessary for the precise spectral analysis of liquid samples. Generally used in spectroscopy, cuvettes are designed to hold liquid substances during chemical analysis. These instruments have two or four optical clear windows to ensure you can use light waves to measure the substance of interest without interference from the cuvette itself. They are often used with spectrometers, which measure how much a liquid sample absorbs or transmits a specific wavelength of light.
Absorbance or transmission determinations shine spectrometer light directly through the cuvette to measure the amount of light 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.