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Determination of As, Hg and Pb in Pyrotechnic Compositions by ICP-AES
Pages: 77-79
Year: Issue:  2
Journal: Analysis and Testing Technology and Instruments

Keyword:  fireworksICP-AESArsenicMercuryLead;
Abstract: In order to ban the use of arsenides, mercurides and lead compounds in pyrotechnic compositions, the amounts of As, Hg and Pb were simultaneously determined by ICP-AES at wavelengths 189. 042, 194. 227, 220. 353 nm respectively,after these were pretreated by alcohol, acetone and nitric acid. The average recoveries were 98 . 5% ~101% with relative standard deviations of 1 . 97% ~2 . 71%. The method has the merits of convenient operation, rapid, low detection limit, few interference and reliable results.
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