CHEM 2541 Lecture Notes - Lecture 4: Salicylamide, Silica Gel, Analgesic
24 Dec 2019
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Analysis of pharmaceutical drugs by thin-layer chromatography (tlc) Goal: identification of an unknown otc pharmaceutical drug by tlc analysis in comparison with authentic samples of caffeine, The table below indicates the analgesics present in each of the six drugs assigned, and each drug has a unique composition. Your unknown will be one of the six commercial tablets shown in the left column. Note: before using microcapillary tubes to spot dilute solutions of analgesics on your assigned tlc plate, please practice spotting and visualizing spots on scrap plates that will be made available to you. If needed, microcapillary tube preparation will be demonstrated in the lab. The solvents used in this experiment are flammable and the. Use of bunsen burner flames will only be permitted during a. Designated time at the start of the experiment. Are no flammable solvents nearby when using a flame, and. Avoid touching the surface of tlc plates; oils from your skin could contaminate it.
