Xie, Yuanwu, Branko N. Popov, and Ralph E. White. 1999. “Novel electrochemical method for the detection of nerve gases”. Journal of Electroanalytical Chemistry 466 (2): 169-76.
Abstract
A novel electrochemical detection technique was developed for selective detection of nerve gases based on double-potential-step chronoamperometry (DPSCA) and the oxidation of nerve gas by electrochemically generated iodine. Diethyl cyanophosphonate (DECP) was used as a nerve gas mimic. The double-potential-step chronoamperometry has a detection limit of 2 × 10-6 M for DECP and is more sensitive than the currently available electrochemical techniques for detection of nerve gases. The DPSCA technique, which uses the ratio of anodic to cathodic currents as a measuring parameter, was found to be more sensitive than the single-potential-step technique. Changes in the area and activity of the electrode and the concentration of the catalyst do not influence the current ratio, which contributes to the high reproducibility of the DPSCA technique.
Last updated on 09/07/2023