Jinzhang Gao
Institute of Chemistry, Northwest Normal University, Lanzhou 730070, Peoples Republic of China
Kanjun Sun
Institute of Chemistry, Northwest Normal University, Lanzhou 730070, Peoples Republic of China
Wu Yang
Institute of Chemistry, Northwest Normal University, Lanzhou 730070, Peoples Republic of China
Fuwei Yang
Institute of Chemistry, Northwest Normal University, Lanzhou 730070, Peoples Republic of China
Guohu Zhao
Institute of Chemistry, Northwest Normal University, Lanzhou 730070, Peoples Republic of China
ABSTRACT
A simple and sensitive analytical method for the determination of benzidine by the perturbation caused by different amounts of benzidine on the Belousov-Zhabotinskii (BZ) oscillating chemical system involving the Ce (IV)-catalyzed reaction between potassium bromate and malonic acid in a acidic medium is proposed. Results show that a linear relationship between the change in the oscillation amplitude and the concentration of benzidine was existed. The calibration curve is linearly proportional to the concentration of benzidine over the range 3.5x10-9-1x10-4 M, with the regression coefficient is 0.9975. The optimum condition for the determination has been chosen. Influence of temperature and reaction variables were investigated in detail and the possible mechanism caused by the adding of benzidine on the chemical oscillating system was also discussed.
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How to cite this article
Jinzhang Gao, Kanjun Sun, Wu Yang, Fuwei Yang and Guohu Zhao, 2004. Determination of Benzidine Using the Analyte Pulse Perturbation Technique in BZ Oscillating Chemical System. Pakistan Journal of Biological Sciences, 7: 1721-1726.
DOI: 10.3923/pjbs.2004.1721.1726
URL: https://scialert.net/abstract/?doi=pjbs.2004.1721.1726
DOI: 10.3923/pjbs.2004.1721.1726
URL: https://scialert.net/abstract/?doi=pjbs.2004.1721.1726
REFERENCES
- Jimenez-Prieto, R., S. Manuel and D. Perez-Bendito, 1995. Analyte pulse perturbation technique: A tool for analytical determinations in far-from-equillibrium dynamic systems. Anal. Chem., 67: 729-734.
Direct Link - Gao, J.Z., J. Ren, W. Yang, X. Liu, H. Yang, Q. Li and H. Deng, 2002. Kinetic determination of hydroquinone by a Belousov-Zhabotinskii oscillating chemical reaction. J. Electroanal. Chem., 520: 157-161.
Direct Link - Nanqin, G., A. Congjun, L. Yi and C. Ruxiu, 1998. Determination of hexacyanoferrates based on the diacetone-BrO3-Mn-H2SO4 chemical oscillatory reaction. Analystica, 123: 2395-2397.
CrossRefDirect Link - Jimenez-Prieto, R., M. Silva and D. Perez-Bendito, 1997. Application of oscillating reaction-based determinations to the analysis of real samples. Analyst, 122: 287-292.
Direct Link - Jimenez-Prieto, R., M. Silva and D. Perez-Bendito, 1997. Analytical assessment of the oscillating chemical reaction by use chemiluminescence detection. Talanta, 44: 1463-1472.
PubMedDirect Link - Strizhak, P.E., O.Z. Didenko and T.S. Ivashchenko, 2001. Determination of traces thallium the transient chaotic regime in the belousov-zhabotinskii oscillating chemical reaction. Analyt. Chimica Acta, 428: 15-21.
Direct Link - Jimenez-Prieto, R., M. Silva and D. Perez-Bendito, 1996. Simultaneous determination of gallic acid and resorcinol based on an oscillating chemical reaction by the analyte pulse perturbation technique. Anal. Chimica Acta, 334: 323-330.
CrossRef - Koros, E., M. Orban and Z.S. Nagy , 1973. Periodicity in the rate of heat evolution during the temporal oscillation in the 2,4-pentanedione-bromate-catalyst system. J. Phys. Chem., 77: 3122-3123.
CrossRef - Jimenez-Prieto, R., M. Silva and D. Perez-Bendito, 1996. Determination of gallic acid by an oscillating chemical reaction using the analyte pulse perturbation technique. Anal. Chimica Acta, 321: 53-60.
CrossRef - Field, R.J., K. Endre and R.M. Noyes, 1972. Oscillations in chemical systems. II. Thorough analysis of temporal oscillation in the bromate-cerium-malonic acid system. J. Am. Chem. Soc., 94: 8649-8664.
CrossRefDirect Link - Noyes, R.M., 1980. Chemical oscillations and instabilities. 39. A generalized mechanism for bromate-driven oscillators controlled by bromide. J. Am. Chem. Soc., 102: 4644-4649.
CrossRefDirect Link