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The Electrochemical Behavior of UO 2 2+ Incorporated in Thin Sol‐Gel Film on the Glassy Carbon Electrode and the Determination of Cupferron
Author(s) -
Liu Ying,
Song Wenbo,
Zou Mingzhu,
Sun Changqing,
Xu Hongding
Publication year - 2000
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/1521-4109(200010)12:14<1152::aid-elan1152>3.0.co;2-s
Subject(s) - electrode , electrochemistry , glassy carbon , materials science , sol gel , chemically modified electrode , carbon fibers , working electrode , uranyl , inorganic chemistry , chemistry , nuclear chemistry , cyclic voltammetry , nanotechnology , metallurgy , composite material , uranium , composite number
Abstract A novel kind of electrode for determination of ammonium nitrophenylhydroxyamine (Cupferron) was developed via an easy and effective immobilization method using an acid‐catalyzed sol‐gel technique. The electrode comprised uranyl nitrate (UO 2 (NO 3 ) 2 ) immobilized by the thin silica sol‐gel film on a glassy carbon electrode (GCE). The UO 2 (NO 3 ) 2 retained its good preconcentration characteristic when being doped by the sol‐gel film. Cupferron was determined by the direct reduction at the silica sol‐gel immobilized UO 2 (NO 3 ) 2 electrode. Moreover its electrochemical behavior was also investigated. The determination conditions for Cupferron were optimized. The UO 2 2+ film electrode still retained high stability after three months. The experimental results show that this method for Cupferron determination possessed good reproducibility and applicability.