Troubleshooting 101: An Instrumental Analysis Experiment.

• Autores: Joseph E. Vitt
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 85, Nº 12, 2008, págs. 1660-1662
• Idioma: inglés
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• Resumen

  • An experiment is described where students troubleshoot a published procedure for the analysis of ethanol. UV�vis spectroscopy is used to measure the change in absorbance upon reaction of dichromate with ethanol. The experiment requires the students to critically evaluate their experimental results to correct a fundamental flaw in the original written procedure. Students can use the results and the corrected procedure to understand the limits of sensitivity of the instrumentation used for the absorbance measurements.