Electrochemical oxidation and the quantitative determination of phosphine on a SPE-based sensor.

A new type of solid polymer electrolyte (SPE) PH(3) electrochemical sensor is reported. The oxidation of PH(3) on the SPE-Pt electrode is studied by electrochemical and XPS methods. At the same time, the linearity, the stability and response time of the sensor is investigated and discussed. The results obtained indicate the SPE-based PH(3) sensor possesses a number of attractive properties.