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A facile and fast electrochemical method for the simultaneous determination of o-dihydroxybenzene and p-dihydroxybenzene using a surfactant.
- Source :
-
Journal of Analytical Chemistry . Jan2009, Vol. 64 Issue 1, p54-58. 5p. 1 Chart, 7 Graphs. - Publication Year :
- 2009
-
Abstract
- A fast and convenient analytical technique has been suggested to detect dihydroxybenzene (DHB) isomers directly and simultaneously. In 0.1 M HAc-NaAc buffer solution (pH 5.6), the reduction peaks of p -DHB and o -DHB were partly separated by differential pulse voltammetry at the glassy carbon electrode. By adding a surfactant (cetyl pyridinium chloride) to enhance the detection sensitivity and using a semi-derivative technique to improve the separation, p-DHB and o-DHB were detected simultaneously. The linear calibration ranges were 1.2 × 10−6 to 1.0 × 10−4 M for p -DHB and 8.2 × 10−7 to 1.0 × 10−4 M for o -DHB, with detection limits of 3.6 × 10−7 and 2.4 × 10−7 M, respectively. The proposed method has been applied to the direct determination of DHB isomers in water sample, and the results were excellent. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10619348
- Volume :
- 64
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Analytical Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 36079244
- Full Text :
- https://doi.org/10.1134/S1061934809010110