Author/Authors :
Raoof ، Jahan Bakhsh نويسنده Electroanalytical Chemistry Research Laboratory, Department of Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran , , KIANI، ABOLFAZL نويسنده , , Ojani، Reza نويسنده , , Sakhav، Farideh نويسنده Electroanalytical Chemistry Research Laboratory, Department of Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran , , Hamidi، Akram-Sadat نويسنده Electroanalytical Chemistry Research Laboratory, Department of Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran ,
Abstract :
The Bolousov-Zhabotinskii (BZ) oscillating chemical reaction was applied for
determination of L-penicillamine by using a platinum wire as an indicator electrode in the
potentiometric method. L-penicillamine can make perturbation in the period of (BZ)
oscillating chemical reaction. This perturbation is used as an analytical signal. The effects of
different variables of BZ oscillating system were evaluated on the perturbation of period
caused by L-penicillamine using statistical experimental design for obtained an optimum
condition. A linear response between oscillating period and the logarithm of L-penicillamine
concentration was found in the range of 9.0×10-7- 9.0×10-5 M. Under optimum conditions,
detection limit (2?) was obtained 8.7×10-7 M. The relative standard deviation (%RSD) for
4.0×10-6 M L-penicillamine is 4% (n = 5).
