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Lab Report on Human Tissue Analysis

Lab Report on Human Tissue Analysis - Fig.2 ethanol...

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Fig.1 folded filter paper chemistryland.com Fig.2 ethanol, kastle-meyer, and 3% hydrogen peroxide ecrimescenechemistrymller.wikispaces.com Lab Report on Human Tissue Analysis Hypothesis The hypothesis is that stains 1-5 will produce negative results and stains 6-11 will produce positive results. The null hypothesis is that none of the stains will be positive. Materials 3% Hydrogen Peroxide solution Distilled water Ethanol Filter paper Kastle-Meyer reagent Magnifying lens Procedure In forensic science there are two types of tests presumptive and confirmatory tests. The Presumptive test is to establish the possibility that a specific body tissue or fluid is present. The confirmatory test is used to identify what the fluid or tissue is. The presumptive test used was the Kastle-Meyer test 1903) this is used to detect traces of blood. Firstly the exhibit is examined with the eye and a magnifying lens. A small part of each stain is sampled by rubbing the stain with the corner of folded filter paper
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