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  Home > JCE Print > Journal of Chemical Education > Issues > 1998  > December  >
In the Laboratory
Chemical Analysis of an Endangered Conifer: Environmental Laboratory Experiments
Royce S. Woosley and David J. Butcher
Western Carolina University, Department of Chemistry & Physics, Cullowhee, NC 28723-6050

Cover
December 1998
Vol. 75 No. 12
p. 1592

Abstract
Environmental chemistry has been investigated as a mechanism to increase student interest in chemistry. Here are described three examples of environmental chemistry experiments derived from research involving a conifer, the Fraser fir (Abies fraseri), that has suffered decline in its native sites in the Southern Appalachian Mountains. Elemental analysis of foliage was used to assess the effects of acidic deposition and pollution levels. Volatile compounds were identified and determined in foliage and other plant tissues by gas chromatography-mass spectrometry (GC-MS) and GC. Chlorophylls a and b were determined by ultraviolet-visible spectroscopy by simultaneous analysis of a two-component mixture. Each of these experiments may be performed as a two-week experiment with procedures provided to students, or used as a semester-long project. These experiments may be readily adapted for use with different plant species or tissues.
More Information
*  Citation
Woosley, Royce S.; Butcher, David J. J. Chem. Educ. 1998 75 1592.
*  Keywords
Environmental Chemistry; Organic Chemistry; Plant Chemistry; Quantitative Analysis; Analytical Chemistry; Laboratory Instruction
*  History
Created:
Last Updated:
June 18, 1999
June 24, 2005
  Home > JCE Print > Journal of Chemical Education > Issues > 1998 > December > Page 1592


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