Spectrophotometric or absorptiometric determination of copper with 2,2'-diaminodiethylether-n,n.n', n'-tetraacetic acid |
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| Authors: | F. Bermejo-Martínez A.G. Blas-pérez |
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| Affiliation: | Department of Analytical Chemistry, Faculty of Sciences, University of Santiago de Compostela Spain |
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| Abstract: | A spectrophotometric determination of copper with 2,2'-diaminodiethylether-N,N,N',N'-tetraacetic acid is proposed. Maximum absorbance is obtained at 720 mμ at pH 2 (1–3) and 25–650 μg Cu/ml can be determined. The reaction is unaffected by temperature or time of standing, and very few ions interfere. A 1 : 1 copper-EEDTA complex is formed. |
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