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Spectrophotometric Determination of Cu(Ⅱ) in Anolyte of Electrolytic Nickel by EDTPO
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作者 高锦章 史雪岩 +2 位作者 康敬万 杜新贞 白光弼 《Rare Metals》 SCIE EI CAS CSCD 1995年第4期262-265,共4页
N, N, N′,N′-ethylenediaminetetrakis(methylenephosphonic acid), EDTPO, was synthesized and char-acterized by element analysis. The reaction of EDTPO with Cu(Ⅱ) formes a stable blue complex with a molarabsorptivity o... N, N, N′,N′-ethylenediaminetetrakis(methylenephosphonic acid), EDTPO, was synthesized and char-acterized by element analysis. The reaction of EDTPO with Cu(Ⅱ) formes a stable blue complex with a molarabsorptivity of 2. 88 × 10 ̄3 L· mol ̄(-1)· cm ̄(-1) at 285. 1nm. The composition of the complex is determined tobe 1: 1 . The concentration of Cu (Ⅱ)obeys the Beer′s law from 12. 7μg/ml to 50. 8 μg/ml .Co(Ⅱ), Mn(Ⅱ), Pb(Ⅱ), Cd(Ⅱ), Ca(Ⅱ), Mg (Ⅱ), Cr (Ⅱ) cause a negligible interference except forFe(Ⅱ), Zn(Ⅱ) in the determination of Cu (Ⅱ) with EDTPO. The spectrophotometric determinationof Cu(Ⅱ) is developed. This method is successfully used in determination of Cu(Ⅱ)in anolyte of electrolyticnickel. 展开更多
关键词 N N N′ N′ -ethylenediaminete-trakis(methylenephosphonicacid) determination of cu(Ⅱ)
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