ELECTROCHEMICAL OXIDATIVE DETERMINATION OF THIMEROSAL IN SOFT CONTACT-LENS CARE SOLUTIONS BY CYCLIC VOLTAMMETRY

Authors
DASILVA MP RODRIGUEZ J HERNANDEZ L
Citation
Mp. Dasilva et al., ELECTROCHEMICAL OXIDATIVE DETERMINATION OF THIMEROSAL IN SOFT CONTACT-LENS CARE SOLUTIONS BY CYCLIC VOLTAMMETRY, Analyst, 119(9), 1994, pp. 1971-1974
Citations number
18
Categorie Soggetti
Chemistry Analytical
Journal title
Analyst → ACNP
ISSN journal
00032654
Volume
119
Issue
9
Year of publication
1994
Pages
1971 - 1974
Database
ISI
SICI code
0003-2654(1994)119:9<1971:EODOTI>2.0.ZU;2-X
Abstract
The electrochemical oxidation of thimerosal (TMS) was studied by cycli c voltammetry on a rotating glassy carbon disc electrode. The best res ults were obtained for TMS solutions adjusted to pH 4.0 with acetate b uffer solutions and a scan rate of 40 mV s(-1). The limit of detection obtained ranged from 0.1 to 0.09 mu g ml(-1) and the method was appli ed to the determination of TMS in soft contact lens care solutions wit h good results, the accuracy required being about 5-10%.