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KMID : 1059519910350060699
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Journal of the Korean Chemical Society
1991 Volume.35 No. 6 p.699 ~ p.706
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Development of Direct Analysis of Metal and Non-metal Ions in Aqueous Samples with the Moderate Power Helium Microwave Induced Plasma
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Pak Yong-Nam
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Abstract
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The moderate power (500 W) Microwave Induced Plasma was generated with helium gas and was used for the direct analysis of aqueous samples. Usually, the helium plasma obtained with a modified Beenakker type cavity forms a cylindrical one. Though, by the careful controls of gas flows, a "toroidal" shape plasma could be made but its analytical performances were found to be worse. Using the glass frit nebuliser, the detection limits for metal ions obtained were around 10~100 ppb and that for chloride was about 50ppm.
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