volume 110, issue 4-6, P143-149 1993
DOI: 10.1007/bf01245098
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Abstract: Abstract.A new water soluble chromogenic reagent, 2-(5-bromo-pyridylazo)-5-[(N,N-dicarboxylmethyl)amino]-phenol has been synthesized. Its colour reaction with various metal ions was tested, and the acid dissociation constant of the reagent, and the stability constants of the chelates of Ni 2+, Co 2+, Cu 2+, ~+ pb2+, Zn 2+ Mn-, and UO 2+ were determined. The application of the reagent to spectrophotometric determination of nickel in irons is presented.Key words: synthesis of 5-Br-PADCAP, spectrophotometry, det…

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