Down-Sizing in Analytical Chemistry. Preconcentration and preservation of total carbonate in environmental waters using an anion-exchange resin column followed by its determination with a CO2 gas-sensitive electrode.

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  • OKUMURA Minoru
    Interdisciplinary Faculty of Science and Engineering, Shimane University, 1060, Nishikawatsu-cho, Matsue-shi, Shimane 690-8504
  • YOSHIHARA Mie
    Interdisciplinary Faculty of Science and Engineering, Shimane University, 1060, Nishikawatsu-cho, Matsue-shi, Shimane 690-8504
  • FUJINAGA Kaoru
    Interdisciplinary Faculty of Science and Engineering, Shimane University, 1060, Nishikawatsu-cho, Matsue-shi, Shimane 690-8504
  • SEIKE Yasushi
    Interdisciplinary Faculty of Science and Engineering, Shimane University, 1060, Nishikawatsu-cho, Matsue-shi, Shimane 690-8504

Bibliographic Information

Other Title
  • ダウンサイズ化する分析化学　　イオン交換樹脂濃縮固定化／二酸化炭素膜電極法による環境水中の全炭酸の定量
  • イオン交換樹脂濃縮固定化/二酸化炭素膜電極法による環境水中の全炭酸の定量
  • イオン コウカン ジュシ ノウシュク コテイカ 2サンカタンソ マク デンキョクホウ ニ ヨル カンキョウ スイチュウ ノ ゼン タンサン ノ テイリョウ

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Abstract

A simple preconcentration method for toal carbonate in environmental water samples has been developed. Carbon dioxide, which was generated from an acidified sample solution, was collected on a small column packed with an OH-type anion exchange resin by bubbling nitrogen gas through the solution. After elution with a potassium nitrate solution, the total carbonate was determined using a carbon dioxide electrode. The established method is applicable to brackish and seawater samples as well as freshwater. With its application to brackish water samples taken from brackish Lake Nakaumi, the behavior of total carbonate in the lake was clarified. In this method without any expensive instruments for analysis, the use of a small resin column enables us to make the sample size smaller and to stably store the samples for a long time (at least 75 days).

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 49 (12), 997-1002, 2000

    The Japan Society for Analytical Chemistry

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