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Chem 102 (lab1-analgesics)

Chem 102 (lab1-analgesics) - Chromatographic Determination...

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Chromatographic Determination of Analgesics Chem 102 Abstract In this lab the components of analgesics were determined by the use of chromatography. A spot of a known and an unknown analgesic (painkiller) were spotted onto a tlc silica gel sheet and placed in a solvent in which the sheet was allowed to develop. After examining the developed sheet under UV light, spraying the sheet with an aqueous detector solution, and comparing the appearance of the sheet with colleagues, the unknown analgesic was determined to contain caffeine and ASA and have a R f value of 0.814. The R f values of the students in the laboratory, that were also given the same unknown analgesic (#1), were within practical range of each other and the above The R f value. Data and Results Table 2: Description of Chemical Hazards Chemical Reagents Hazards Toluene Flammable colourless liquid, toxic Ether Flammable colourless liquid, toxic Acetic acid Corrosive, hygroscopic liquid Methanol Flammable colourless liquid, toxic Table 1: Data and Results from chromatograph sheet (refer to figure 1)
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