Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1258258 | Chinese Chemical Letters | 2008 | 4 Pages |
Abstract
Based on the electrocatalytic oxidation of levodopa at gold electrode and the reduction of permanganate at platinum electrode, a novel flow injection irreversible biamperometric method is developed for the determination of levodopa under the potential difference of 0Â V imposed between two electrodes. In H2SO4 solution, the linear relationships between currents and the concentrations of levodopa are obtained in the range from 0.04Â mg/L to 20Â mg/L with the detection limit of 0.012Â mg/L. The proposed method is applied to the determination of levodopa in pharmaceutical preparations.
Related Topics
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Authors
Li Jun Li, Qi Feng Chen, Hao Cheng, Lai Bo Yu, Jian Ling Wu,