JCE Online: Journal of Chemical Education: July 2007: Cover


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Home > Journal of Chemical Education > Issues > 2007 > July >

July 2007 Featured on the Cover

July 2007

Table of Contents

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Analyzing for Lead in Cell Phone Circuit Boards. Disposal of electronic waste is a growing problem. Weidenhamer describes a determination of the lead content of discarded consumer products that students can readily appreciate. In the experiment, circuit board samples from old cell phones are digested in aqua regia and analyzed for lead following dilution. This lab is intended to demonstrate the concept of atomic absorption (AA) by qualitative screening of circuit board materials and to show the use of AA for quantitative analysis of environmental samples. The

Photos by Jerrold Jacobsen and James Maynard, University of Wisconsin–Madison.

The cover was designed by Betsy True.

Home > Journal of Chemical Education > Issues > 2007 > July > Featured on the Cover

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