Wednesday, September 11, 2019
Experimental plan for lab Essay Example | Topics and Well Written Essays - 500 words
Experimental plan for lab - Essay Example Besides, identification of trace elements and clues in crime scene is a major challenge in the forensic science. Therefore, some of the commonest methods are less accurate and time consuming with low levels of reliability making it difficult to identify the specific culprits especially nowadays that criminals are very knowledgeable. However, according to Hartzell (689) invention of chemical processes like GCMS, which uses trace materials from the crime scene is revolutionising the path taken by forensic scientist and criminal investigators because of its reliability, accuracy and the ability to identify signature molecules even at trace and minute levels. Volunteers will provide the samples by rubbing their fingers across the forehead before using the clean beads from the vials in rubbing between their fingerprints for 15 seconds and then immediately placing the beads in the vial Hartzell-Baguley, Brittany, Rachael E .Hipp, Neal R. Morgan, and Stephen L. Morgan. "Chemical Composition of Latent Fingerprints by Gas ChromatographyÃ¢â¬âMass Spectrometry an Experiment for an Instrumental Analysis Course,." Journal of Chemical Education 48.4 (2007): 689-91.