Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1247150 | Talanta | 2008 | 6 Pages |
Abstract
Self-assembled monolayers (SAMs) of di-n-octadecyldisulphide (C18) and n-octanethiol (C8) were prepared on gold electrodes. From the studies carried out by cyclic voltammetry and square wave voltammetry, it was observed that the electrochemical behaviour of 4,4â²-oxydianiline on these electrodes is affected by the length chain of the alkanethiol. After the optimization of all the variables involved in the electrochemical response of 4,4â²-oxydianiline by square wave voltammetry employing the modified electrodes, it is possible the determination of 4,4â²-oxydianiline with a detection limit of 0.04 μg/mL (C18) and 0.06 μg/mL (C8) and determination limits of 0.12 and 0.22 μg/mL, respectively. The calculated Er (%)n=10 and R.S.D.(%)n=10 values were minor than 2.2% and 3.7%. The proposed methods were successfully applied to the analysis of oxydianiline in wastewater and shoe-dyeing samples.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
C.S.H. DomÃnguez, C. Quintana, J. Vicente, P. Hernández, L. Hernández,