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Published byClifford Wood Modified over 9 years ago
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FRSC 2001 – Introduction to Forensic Science Technology II Professor Bensley Alfred State College
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First Step Macroscopic Analysis Macroscopic Analysis What does it look like? How is it packaged? What does it look like? How is it packaged? 5 P’s 5 P’s
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Macroscopic Exam
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How are Drug Cases Submitted to Laboratory?
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The Analysis Continues Obtain weight of material if needed Obtain weight of material if needed What is residue? What is residue?
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Presumptive Examinations Also known as preliminary or screening tests Also known as preliminary or screening tests Examples: Color tests, microcrystalline tests, low-power microscopy, thin layer chromatography, gas chromatography Examples: Color tests, microcrystalline tests, low-power microscopy, thin layer chromatography, gas chromatography Methamphetamine Marquis Test (L) Nitroprusside Test (R) Heroin Marquis Test (L) Mecke Test (R)
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Microcrystalline Tests CocaineMethamphetamine
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Thin Layer Chromatography
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Confirmatory Examinations Also known as identification examinations Also known as identification examinations Examples: Mass spectrometry, infrared spectroscopy Examples: Mass spectrometry, infrared spectroscopy
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Crack Cocaine Cocaine HCl (salt)
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