2, 4, 6-トリ-2-ピリジル-1, 3, 5-トリアジンを用いる微量ニッケルの溶媒抽出 : 原子吸光分析

概要

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Nickel(II) complex with 2, 4, 6-tri-2-pyridyl-1, 3, 5-triazine (TPTZ) and iodide having the composition of Ni : TPTZ : I = 1 : 2 : 2 was found to be extracted into nitrobenzene easily. And the nickel could be determined by utilizing this complex formation reaction and flame . AAS directly. The optimum pH for the extraction was 9.0. The complex was stable at least 2 d in the organic phase. Relative standard deviation (n=10) of this method was 1.6 and 3.6% for 10 and 2 ppb of nickel (II) in 500 cm^3 aqueous phase. The presence of Co(II), Cu (II) and Fe (III) ions with 10-100 times of nickel interfered the determination, while other diverse ions did not. Fe(III) could be masked with 0.2% potassium tartrate. Trace nickel in water samples was determined.
社団法人日本分析化学会の論文
1989-05-05