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  Home > JCE Print > Journal of Chemical Education > Issues > 2000  > October  >
In the Laboratory
Implementation of Traditional and Real-World Cooperative Learning Techniques in Quantitative Analysis Including Near Infrared Spectroscopy for Analysis of Live Fish
Tracy P. Houghton and John H. Kalivas
Department of Chemistry, Idaho State University, Pocatello, ID 83209
Cover
October 2000
Vol. 77 No. 10
p. 1314
Abstract
It is important for a modern quantitative analysis laboratory course to contain gravimetric and volumetric analysis exercises implemented with standard unknowns. By analyzing unknowns, students learn crucial laboratory skills. It is also advantageous to introduce real-world samples and cooperative learning structure into the lab course. A one-semester sophomore course at Idaho State University is divided into two parts: students individually perform traditional unknown analyses, and as groups, they study an aquatic ecosystem simulated by a trout aquarium. Ecosystem analyses include the important chemical components of the nitrogen cycle, dissolved oxygen, and alkalinity. In addition to examining the aquatic system, trout are removed temporarily from the aquarium for analysis of lipid and moisture content using near infrared (NIR) spectroscopy. For the ecosystem investigation, students also determine costs of analyses and conduct quality-control studies. At the completion of the course, students are well versed in classical methods of analysis as well as educated on the relevance of modern technology, including up-to-date instrumentation and sophisticated multivariate calibration and prediction procedures. Course assessment results are summarized in the paper.
More Information
*  Citation
 Houghton, Tracy P.; Kalivas, John H. J. Chem. Educ. 2000 77 1314.
*  Keywords
 Analytical Chemistry; Collaborative / Cooperative Learning; Undergraduate Research; Quantitative Analysis
*  History
 Created:
Last Updated:		 September 22, 2000
April 15, 2005
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