Determination of arsenic(III) and arsenic(V) in fresh water by AAS equipped with arsine generation system.

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  • 還元気化原子吸光法による陸水中のヒ素（ＩＩＩ）及びヒ素（Ｖ）の分別定量
  • カンゲン キカ ゲンシ キュウコウホウ ニ ヨル リクスイチュウ ノ ヒソ 3

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Abstract

For the determination of arsenic(III), arsine was first generated from the sample solution at pH 9 with tetrahydroborate, and then it was introduced into a heated quartz glass cell along with argon; and finally the atomic absorption of arsenic was measured. In addition, the total arsenic was determined under acidic condition (5% hydrochloric acid solution) in the same manner. The arsenic(V) was determined by subtracting the value of arsenic(III) from that of total arsenic. This method was applied for ground and river water samples. Detection levels of 2.6-8.0 ppb of arsenic(V) were detected, whereas arsenic(III) was not detected.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 40 (4), T97-T100, 1991

    The Japan Society for Analytical Chemistry

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