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  Home > JCE Print > Journal of Chemical Education > Issues > 2005  > April  >
In the Laboratory
Screening Technique for Lead and Cadmium in Toys and Other Materials Using Atomic Absorption Spectroscopy
Henry Brouwer
Department of Chemistry, Redeemer University College, Ancaster, ON, Canada
Cover
April 2005
Vol. 82 No. 4
p. 611
Abstract
This article describes a simple method to determine the presence of metals such as lead and cadmium in plastic toys, paints, and other solids using an atomic absorption spectrometer (AAS) without going through the time-consuming sample preparation steps. Basically, the method involves transferring solid sample to a nichrome wire by placing a small sample on a wire loop or touching the heated wire to the sample and then heating the wire in the AAS flame. By choosing the appropriate radiation source and wavelength, the presence of different metals may be determined qualitatively.
More Information
*  Citation
 Brouwer, Henry. J. Chem. Educ. 2005 82 611.
*  Keywords
 Analytical Chemistry; Atomic Spectroscopy; Consumer Chemistry; Metals; Qualitative Analysis
*  History
 Created:
Last Updated:		 March 4, 2005
March 14, 2005
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