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  Home > JCE Print > Journal of Chemical Education > Issues > 2003  > October  >
In the Laboratory
Determination of Minerals in Apples by ICP–AES
Mark Duxbury
Department of Applied Science, Auckland University of Technology, Auckland, New Zealand
Cover
October 2003
Vol. 80 No. 10
p. 1180
Abstract
A laboratory experiment is described that involves the elemental analysis of apples by inductively coupled plasma–atomic emission spectroscopy (IICP–AES). The results of the experiment allow students to predict the cold-storage stability of apples. During the experiment the sample-preparation techniques and digestion procedures involved in elemental analysis of solid organic samples are introduced and the optimization of the ICP–AES is explored. The method detailed can easily be adapted for the analysis of a wider range of elements. The laboratory experiment may also be undertaken using atomic absorption spectroscopy (AAS) with only minor modifications in the sample-preparation procedure.
Supplement
Instructions for the students and notes for the instructor, including alternative digestion methods and analysis by AAS, are available.
*  Contents JCE2003p1180W.doc (Microsoft Word)
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More Information
*  Citation
 Duxbury, Mark. J. Chem. Educ. 2003 80 1180.
*  Keywords
 Agricultural Chemistry; Analytical Chemistry; Atomic Spectroscopy; Consumer Chemistry; Food Science; Instrumental Methods; Laboratory Instruction; Nutrition
*  History
 Created:
Last Updated:		 September 2, 2003
February 28, 2005
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