1,2-シクロヘキサンジオンジオキシム担持活性炭濃縮/メタル炉原子吸光法による底質中の微量ニッケルとコバルトの定量
1996 年 45 巻 10 号 p. 955-957
詳細
1996 年 45 巻 10 号 p. 955-957
Ni and Co are adsorbed on activated carbon impregnated with 1, 2-cyclohexanediondioxime(AC-DOx). A simple and rapid determination method for trace amotnts of Ni and Co in bottom sediments by metal furnace AAS using direct heating of metals adsorbed onto AC was investigated. Ni(II) and Co(II) are adsorbed as AC-DOx after adjusting the pH to 8.0 for Ni(II) and 6.5 for Co(II). The proposed method was used to determine the amounts of several environmental reference standard materials, river and marine bottom sediments. The proposed method is simple and rapid, and has been applied to the determination of Ni and Co in river and marine bottom sediments.
