Adsorption voltammetry of the titanium-4-[(4-diethylamino-2-hydroxyphenyl)-azo]-5-hydroxynaphthalene-2,7-disulfonic acid (beryllon III)system

✍ Scribed by Jingzhong Zhao; Dezhi Sun; Xilian Wei; Wenrui Jin

• Publisher: John Wiley and Sons
• Year: 1994
• Tongue: English
• Weight: 414 KB
• Volume: 6
• Category: Article
• ISSN: 1040-0397
• DOI: 10.1002/elan.1140060405

✦ Synopsis

The behavior of Ti (N) complex with Beryllon 111, Ti ( W ) A, at a mercurv 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 I11 in the complex adsorbed on the surface of the electrode. In 0.005 mol/L HOAc + 0.1 mol/L NaOAc and 5 X lo--mol/L Beryllon 111, the linear range of the linear-sweep adsorption voltammetry is 5 X lo-'' to 1 X mol/L, the detection limit of the method is 2.5 X lo-'' mol/L for a preconcentration time of 120 seconds. This method has been applied to samples of human hair.