Determination of cobalt and nickel in plant materials by graphite furnace AAS.

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Other Title
  • 黒鉛炉原子吸光法による植物試料中のコバルト及びニッケルの定量
  • コクエンロ ゲンシ キュウコウホウ ニ ヨル ショクブツ シリョウチュウ ノ

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Abstract

A precise analytical method for using graphite furnace AAS is described for the determination of trace amounts of Co and Ni in plant materials. By adding NH4VO3 as a matrix modifier, direct quantitative determinations of Co and Ni are possible without preconcentration or separation of coexisting elements. This method was applied to the determinations of Co and Ni in Tea and Orchard Leaves (NBS SRM 1570) with satisfactory results. The analytical results of Co were 0.19μg/g and 1.35μg/g on the average for Orchard Leaves and Spinach, respectively, which agreed with the reference value (0.2μg/g and 1.5μg/g). The results of Ni were 1.22μg/g and 5.68μg/g respectively on the average for Orchard Leaves and Spinach, which agreed with the value 1.3±0.2μg/g and reference value 6μg/g.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 36 (7), 436-440, 1987

    The Japan Society for Analytical Chemistry

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