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  Home > JCE Print > Journal of Chemical Education > Issues > 1998  > August  >
In the Laboratory
NSF Highlights
Using Microwave Sample Decomposition in Undergraduate Analytical Chemistry
R. Griff Freeman and David L. McCurdy
Truman State University, Division of Science, Kirksville, MO 63501
Cover
August 1998
Vol. 75 No. 8
p. 1033
Abstract
A shortcoming of many undergraduate classes in analytical chemistry is that students receive little exposure to sample preparation in chemical analysis. This paper reports the progress made in introducing microwave sample decomposition into several quantitative analysis experiments at Truman State University. Two experiments being performed in our current laboratory rotation include closed vessel microwave decomposition applied to the classical gravimetric determination of nickel and the determination of sodium in snack foods by flame atomic emission spectrometry. A third lab, using open-vessel microwave decomposition for the Kjeldahl nitrogen determination is now ready for student trial. Microwave decomposition reduces the time needed to complete these experiments and significantly increases the student awareness of the importance of sample preparation in quantitative chemical analyses, providing greater breadth and realism in the experiments.
More Information
*  Citation
 Freeman, R. Griff; McCurdy, David. J. Chem. Educ. 1998 75 1033.
*  Keywords
*  History
 Created:
Last Updated:		 June 22, 1999
June 24, 2005
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