Boron-doped Diamond Electrodes for Voltammetric Determination of Benzophenone-3. (2nd January 2016)

• Record Type: Journal Article
• Authors: Zavazalova, Jaroslava; Prochazkova, Katerina; Schwarzova-Peckova, Karolina
• Is Part Of: Analytical letters. Volume 49:Number 1(2016)
• Page Start: 80
• Page End: 91
• Publication Date: 2016-01-02
• Subjects: Adsorptive stripping voltammetry -- benzophenone-3 -- boron-doped diamond electrode -- cetyltrimethylammonium bromide; Chemistry, Analytic -- Periodicals; Chemistry, Analytic -- Abstracts; 543
• DOI: 10.1080/00032719.2014.1003425
• Languages: English
• ISSNs: 0003-2719

Abstract

ABSTRACT: The goal of this study was to determine benzophenone-3 at the boron-doped diamond electrode and in the presence of cetyltrimethylammonium bromide by adsorptive stripping voltammetry. The oxidation of benzophenone-3 was irreversible by differential pulse voltammetry. The peak height increased with boron concentration in the electrode film deposited as 500–8000 parts per million boron/carbon. Limits of detection of 1.5, 1.9, and 0.8 micromoles per liter were obtained for 2000, 4000, and 8000 parts per million films in Britton-Robinson buffer at pH 12.0. Positive effect of cetyltrimethylammonium bromide on the determination of benzophenone-3 includes higher sensitivity, a shift of the peak potential to less positive values, and an improved limit of detection by an order of magnitude to 0.1 micromole per liter.