When attempting to find trace amounts of an inorganic substance x-ray diffraction would be a valuable tool for discovering just what substances were present. It would not be the first choice according to various researchers, but it would be one of the least invasive as well as one of the least likely to destroy the sample. By using x-ray diffraction it is possible to differentiate between substances, making it easier to identify trace elements that can be found in crime scenes. X-ray diffraction is a valuable but slightly limited technique that is used by forensic science thanks to its ...
Essays on X-Ray Diffraction
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Question 1
Spectrometry would indeed be a good analytical tool since it will help in distinguishing the different compounds in the powder. In such a case, the best type of spectroscopy would be infrared spectrometry and mass spectrometry. Infrared spectroscopy is a vital analytical tool to identify controlled substances. Infrared light is passed on the unknown substance. As the sample absorbs the infrared radiation, an infrared spectrum results, which is a series of peaks and valleys ("Physical Evidence Handbook Drug Identification Unit", 2016). Each substance in the compound results in a highly accurate infrared spectrum. The spectrum of the unknown elements ...