Comprehensive Analyses of 67 Elements Including Noble Metal Elements (Ru, Rh, Pd, Os, Ir, Pt, and Au) in River Samples by Inductively Coupled Plasma Tandem Quadrupole Mass Spectrometry and Its Application to Geochemical and Environmental Chemical Analysis

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  • KOMINAMI Haruyuki
    Department of Regional Environmental Science, Faculty of Life and Environmental Science, Shimane University
  • SUZUKI Yoshinari
    Department of Regional Environmental Science, Faculty of Life and Environmental Science, Shimane University Research Center for Coastal Lagoon Environments, Shimane University

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Other Title
  • タンデム四重極型ICP-MSを用いた河川試料中の貴金属元素を含む67元素の網羅的分析と地球化学・環境化学的解析への応用
  • タンデム シジュウキョクガタ ICP-MS オ モチイタ カセン シリョウ チュウ ノ キキンゾク ゲンソ オ フクム 67 ゲンソ ノ モウラテキ ブンセキ ト チキュウ カガク ・ カンキョウ カガクテキ カイセキ エ ノ オウヨウ

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Abstract

Comprehensive analyses of 67 elements including noble metal elements (NME: Ru, Rh, Pd, Os, Ir, Pt, Au) were performed by using tandem quadrupole inductively coupled plasma mass spectrometry (ICP-MS/MS). Any spectral interference on NME from a coexisting matrix could be removed under the optimized condition of usage NH3 gas as a collision/reaction gas. The validation of the analytical procedure was confirmed by analyzing a river water reference material (SLRS-5) and showed good agreements with the certified value, reported value, and estimated value including NME. The quantitative analysis of ng L−1 or less level could be performed without any separation/purification procedures by using ICP-MS/MS. The optimized analysis conditions were applied to the spring and river water in the eastern part of Shimane prefecture, and comprehensive analyses of 67 elements were performed. The results of statistical element classification by cluster analysis did not completely reflect the chemical properties. For example, Rh was classified into clusters containing Na, Mg, and so on. Next, from the geochemical point of view, the abundance of 67 elements was chemically classified by comparing to concentration in tap water. It could classify river samples into four basic patterns and combinations thereof; the geographical distribution of the element pattern shows good agreement with the geological distribution. On the other hand, the geographical distribution of Rh, which was difficult to be explained from the geochemical properties, shows a good agreement with the geographical distribution of the road density, suggesting a link with the catalytic converter to purify exhaust gas.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 66 (11), 825-837, 2017

    The Japan Society for Analytical Chemistry

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