Richard Morris Lab 5

Richard Morris Lab 5 - Richard Morris CH 237 02 (Wed) Lab...

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Richard Morris 10/21/09 CH 237 – 02 (Wed) Lab 5: Thin Layer Chromatograph of Drug Components. Lehman, John W. Operational Organic Chemistry, (Exp. 15 p.142 in text) Results: 1. R f Values for known substances: Aspirin: (23.8mm/28.6mm) = .83 Caffiene: (6.34mm/28.6mm) = .22 Acetaminophen: (15.9mm/28.6mm) = .56 Ibuprofen: (25.4/28.6) = .89 2. R f values of unknown substances: Unknown 1: .22, .56, .83 Unknown 2: .22, .56, .83 3. TLC Plate attached Discussion: 1. In this experiment, a scenario is given in which a patient has swallowed a large number of drug tablets and is suffering from an overdose. The bottle that contained the drug is missing, but some loose tablets were found. These tablets can be examined through thin- layer chromatography (TLC) to determine composition. A set of two unknown chemicals was provided in this scenario. The text gives several possible components of the unknown drug: acetaminophen, aspirin, caffeine, and ibuprofen. Samples of each of these drugs were pre-dissolved in a 1:1 solution of ethanol and dicholormethane. The unknown drug was also dissolved in solution. A TLC plate was obtained and prepared by drawing a line and partitioning its width into six equal sections. A capillary tube was used to place a spot of each known
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Richard Morris Lab 5 - Richard Morris CH 237 02 (Wed) Lab...

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