Inhaltsverzeichnis
Cuvettes are commonly made from different transparent materials such as optical glass, quartz or transparent plastic. Crown glass has an optimal wavelength range of 340–2500 nm. Glass cuvettes are typically for use in the wavelength range of visible light, whereas fused quartz tends to be used for ultraviolet applications. THz cuvettes are intended for spectroscopic analysis of various substances. A cuvette is some volume interposed between two windows transparent in a specific wavelength range. The window material is selected depending on the measurement range.
- If you can’t find what you are looking for, we can also supply custom cuvettes to match your design and exact specifications.
- Glass cuvettes are typically for use in the wavelength range of visible light, whereas fused quartz tends to be used for ultraviolet applications.
- 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
Cleaning can be difficult if the materials being measured stick to the cell walls , or if the determinations are being performed out of the laboratory. They do have two major advantages over disposable cuvettes in that they are resistant to almost all organic solvents and they transmit much further down into the UV. This is especially true for quartz, which is transparent down to the UV cutoff of water at 190 nm, while most glass cells cutoff at around 300 nm in the UV.
Lab4us Quartz Micro Cuvette Cell Black Walls
All our in-stock UV fused quartz cuvettes are made by diffusion bonding method. Quartz is heated to a high temperature and then adhered together by applying pressure. UV quartz volume of a cuvette cuvettes made in such method have much stronger chemical resistance and better life time than cuvettes made in other way such as being glued together. Disposable cells have a major advantage in that being single-use new from the box, they are always "clean" if stored properly.
Selection of a specific cell type will limit for example the appropriate temperature range, based on the selection of the dispersant and cell type. The manufacturing process requires each cuvette and cell to be assembled by direct fusion without the use of adhesives. This ensures resistance to chemical attack and extremes of temperature. Each cuvette and cell displays high transmittance values with performance features extending the spectrum from 190nm nm depending upon the chosen transmission material. CLICK HERE to download the transmission performance curves for UV Quartz, IR Quartz and glass materials.