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KMID : 1059519940380080576
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Journal of the Korean Chemical Society
1994 Volume.38 No. 8 p.576 ~ p.584
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The Development of Continuous Flow Method Through Microwave Oven for the Analysis of Metal Oxides in Water by ICP-AES
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Kim Youn-Doo
Lee Gae-Ho
Kim Hyung-Seung
Kim Dong-Soo
Park Kwang-Kyu
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Abstract
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The method described offers rapid and efficient sample preparation using on-line microwave digestion of metal oxides in water sample with direct elemental detection by ICP-AES. The open tubing digestion system(OTD) and the restraint tubing digestion system(RTD) for flow injection(FI) were designed and tested to find the optimum conditions. Comparison of OTD and RTD indicated that RTD was 3 times faster on the digestion time, and 10 times higher on sample mass. Finally, the results of RTD agree well with those by conventional microwave open vessel in all cases and show good precision; Fe and Cu show good with about 5% of RSD, while Zn and Co more or less than 10% RSD.
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KEYWORD
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