A precise method for the generation of standard metal salt particulates |
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| Authors: | Venkatram Dharmarajan Philip W West |
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| Institution: | Environmental Science Institute, Chemistry Department, Louisiana State University, Baton Rouge, La. 70803 U.S.A. |
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| Abstract: | A convenient precise method for producing standard dusts has been developed. Metal-containing particulate samples are generated by aspirating solutions containing metals or interest into an atomizer-burner employing an oxygen-acetylene flame. The particulates thus generated are collected by means of a miniature stack by conventional isokinetic sampling techniques. The particulate samples are deposited on filter tapes and are suitable for calibrating trace analytical methods. Particulate samples containing one or more metals, in any desired ratios of their concentrations, can be generated. Initial studies of particulate sizes indicate that the size range generated is in the respirable range, i.e.. 0.1-5 μm. |
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