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Title: Heterogeneous precipitate based Cu(II)-ionselective electrode and its application in the determination of stability constant of Cu(II) complex with 4-(2-pyridylazo)-resorcinol
Authors: Tiwari, K K
Chattopadhyaya, M C
Issue Date: Jun-2001
Publisher: NISCAIR-CSIR, India
Abstract: A new Cu(II)-ion selective electrode (ISE) based on thiopentone- Cu(II) complex as electroactive material has been described. The selectivity coefficients determined by mixed solution method, reveal that the electrode is selective in the presence of ions Co(II), Ni(II), Zn(II), Mn(II), Ca(II), Mg(II) and Al(III). The stability constant of Cu(II) complex with 4-(2-pyridylazo)-resorcino1 (PAR) has been determined by measuring the free metal ion concentration at different pH using this electrode (log K = 13.69).
Page(s): 619-621
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.40A(06) [June 2001]

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