2 resultados para SOLID-LIQUID EXTRACTION

em Boston University Digital Common


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A simple procedure for the isolation of caffeine from energy drinks by solid phase extraction on a C18 cartridge. Quantitative analysis of the amount of caffeine by LC/MS is determined by referencing a standard curve.

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A convenient preparation of substituted benzoic acids from Grignard additions to solid carbon dioxide. Students create a library of carboxylic acids by using differentially substituted, commercially available aryl bromides, which can be used as the starting materials for a multistep synthesis. This is a modification and improvement of a very popular undergraduate organic chemistry experiment.