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Microspectrophotometry in forensic science↵

The main two types of Microspectrophotometry (MSP) are the IR and UV-Vis micro-spectrophotometry (UV-VIS MSP) depending on the type of energy used where colored and colorless materials can be analyzed. MSP is non-destructive which makes it essential in forensic samples analysis. MSP is applied in forensic science for analyzing paint chips, fibers, inks, pigments and colored hair.

Mainly, UV-VIS MSP studies colors, for comparison in the visible region and other types of components in the UV. For example, forensic scientists can easily discriminate fiber colors and type using UV-VIS MSP and decide if it is from the same class or not. UV-VIS MSP is more precise and quantitative compared to the more subjective results of visual microscopically color comparisons. The technique allows the discrimination between samples depending on their interaction with light in the visible region of the electromagnetic spectrum. When light strikes a sample, some wavelengths will be absorbed and others will be reflected depending on the chemical composition of the sample, and the light absorbed to give the resulted spectrum.

'''Microspectrophotometry in forensic science