UV-Vis spectrophotometer

This is a double-beam UV-Vis spectrophotometer that operates between 190-1100nm with a wavelength accuracy of ± 0.3nm and a Tungsten Halogen/Deuterium light source. It is an analytical instrument that measures the number of discrete wavelengths of UV or visible light that are absorbed by or transmitted through a sample in comparison to a reference or blank sample. This property is influenced by the sample composition, potentially providing information on what is in the sample and at what concentration. Each analyzed sample provides a spectrum showing the absorbance of one or more sample components in the cuvette when scanned through various wavelengths in the UV/Vis region of the electromagnetic spectrum.

In our laboratory, it is mainly used for establishing the composition and concentration of organic compounds in the water during a photocatalytic experiment, as a part of the photocatalysts activity evaluation. Internal calibration has been performed for the determination of various compounds in any liquid sample.