Determination of Zinc in Vehicle Exhaust Particulates by Halide Vapor Generation ICP-AES

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  • ハロゲン化物生成気化／高周波誘導結合プラズマ発光分光法による自動車排出粒子中の亜鉛の定量法
  • ハロゲンカブツ セイセイ キカ コウシュウハ ユウドウ ケツゴウ プラズマ ハッコウ ブンコウホウ ニ ヨル ジドウシャ ハイシュツ リュウシ チュウ ノ アエン ノ テイリョウホウ

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Abstract

A new sample introducing method to ICP-AES is described for the determination of zinc. The impulse graphite furnace of an inert gas fusion was used to generate of halide vapor (HVG). A 10 μl sample solution of 0.1 mg Zn/ml with 50 mg/ml of ammonium chloride was dropped into a graphite crucible, vaporized as zinc chloride, and heated for 5 seconds at 2000°C after drying within 120 second at 100°C. The emission intensity at 213.86 nm of zinc was integrated every 0.2 seconds. The emission intensity of 1 μg of zinc as nitrate and sulfate added ammonium chloride, increased by about 100 times. The relative standard deviation in this study was 1.4 ~ 4.3% (n = 6), and the limit of detection was 60 pg (3 σ of the blank value). This method was successfully applied to the analysis of an environmental standard reference material (NIES No. 8).<br>

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 54 (5), 355-360, 2005

    The Japan Society for Analytical Chemistry

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