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Adsorption voltammetry of the titanium‐4‐[(4‐diethylamino‐2‐hydroxyphenyl)‐azo]‐5‐hydroxynaphthalene‐2,7‐disulfonic acid (beryllon III)system
Author(s) -
Zhao Jingzhong,
Sun Dezhi,
Wei Xilian,
Jin Wenrui
Publication year - 1994
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/elan.1140060405
Subject(s) - adsorption , electrode , chemistry , linear sweep voltammetry , dropping mercury electrode , voltammetry , buffer solution , detection limit , cyclic voltammetry , mercury (programming language) , titanium , inorganic chemistry , nuclear chemistry , electrochemistry , chromatography , organic chemistry , computer science , programming language
The behavior of Ti (IV) complex with Beryllon III, Ti (IV) A, at a mercury electrode has been investigated in acetate buffer (HOAc/NaOAc). The adsorption phenomena were observed by linear‐sweep voltammetry. The mechanism of the electrode reaction was found to be the irreversible reduction of Beryllon III in the complex adsorbed on the surface of the electrode. In 0.005 mol/LHOAc + 0.1 mol/L NaOAc and 5 × 10 −10 to 1 × 10 −7 mol/L, the detection limit of the method is 2.5 × 10 −10 mol/L for a preconcentration time of 120 seconds. This method has been applied to samples of human hair.