Purpose: To use Infared Spectroscopy to determine the functional groups of samples 2 and 7.
Introduction: Infared Spectroscopy is a forensic technique used to analyze organic compounds . Infared radiation identifies compounds when infared light strikes an object. The spectrum starts where the red region of visible light ends.
Materials and Methods: An unknown saturated solution of samples 2 and 7 were prepared. On one side of the IR cards one sample was placed on to the card. The card was placed into the spectroscopy on the side that did not contain any sample (background). Then the card was placed on the side containg sample 2 (repeated for sample 7) and the spectroscopy created a graph to later determine the functional groups.
Results: The readings from the spectroscopy graph identified the unknown samples 2 and 7. Sample 2 contained Aspirin and Tylenol PM. Sample 7 was Aspirin.
Discussion: The spectroscopy identified the unknown samples 2 and 7 by identifying specific functional groups. The determination of the specific functional groups determine the substance(s) in each sample.
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