Incorporating Gas Chromatography/Mass Spectrometry into a Project-Based Laboratory

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This project has allowed the institution to acquire a Varian 3400 Gas Chromatograph to enable the sophomore level Organic- Analytical Laboratory to incorporate a strong GC/mass spectroscopy segment into the laboratory. The instrument is used with the department's Varian 3300/Finnigan MAT system. Students are first instructed on these instruments in the fall term in order to characterize unknown components separated from mixtures. Students make extensive use of the instrument with the GC/MS in the second term to characterize and analyze products in multistep syntheses. The need for the instrumentation was heightened by an increase in enrollment in chemistry, and the physical impracticality caused by both time constraints and caution in having every student search for suitable chromatographic conditions on equipment which was in hand. The institution has contributed to the project in an amount equal to the NSF funds.