UIC Organic Chemistry Laboratory Pre-Lab 1 PDF

Summary

These slides provide pre-lab information on various chromatography techniques, including column chromatography, thin-layer chromatography, and data analysis. The document is a set of slides for a laboratory experiment.

Full Transcript

UIC CHEM 233 University of Illinois Organic Chemistry Laboratory at Chicago Pre-Lab lecture Safety First Goals & Data to Collect: Experiment 1 Work in pai...

UIC CHEM 233 University of Illinois Organic Chemistry Laboratory at Chicago Pre-Lab lecture Safety First Goals & Data to Collect: Experiment 1 Work in pairs to separate a mixture of dyes. Example; methylene blue & methyl orange using column chromatography Goals & Data to Collect: Experiment 2 Other dyes will be used: Goals & Data to Collect: Experiment 2 Partition Coefficient (Kc) Schematic Representation of Chromatographic Separation Between Two Solutes with Different Kc Types of Chromatography Eluting Power of Some Liquid* Mobile Phases Silica: A Polar, Solid, Stationary Phase Polarity & Kc Values Relative Polarities of Functional Groups Column Chromatography Set-up Thin-Layer Chromatography (TLC) Set-up Spinach Pigments Use the description in the course manual to determine the color & relative polarity of the spinach dyes – you will need this info to analyze your TLC data TLC Separation of Spinach Pigments TLC Analysis & Identification of Analgesic Drugs: Experiment 3 Compounds present in Unknown Analgesic Possible Unknown Analgesic Drugs & Their Composition By trial and error find the best solvent (or solvent mixture) to run TLC Using TLC analysis compare your unknown drug with available standards to determine what analgesic you have.

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