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ELECTROCHEMICAL SENSOR FOR THE SPECIFIC DETECTION OF PERACETIC ACID IN AQUEOUS SOLUTIONS USING PULSE AMPEROMETRIC METHODS
ELECTROCHEMICAL SENSOR FOR THE SPECIFIC DETECTION OF PERACETIC ACID IN AQUEOUS SOLUTIONS USING PULSE AMPEROMETRIC METHODS
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机译：脉冲安培法测定水溶液中过乙酸的电化学传感器
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摘要
An electrochemical sensor (A, A')is specific for the detection of peracetic acid in asolution which also contains hydrogen peroxide. Apotential is applied between a reference electrode(120, 120') and a working electrode (118, 118').A read voltage (fig. 7) is selectively pulsed to theworking electrode and then through the solutionto a counter electrode (122, 122'). The currentflowing between the working electrode and thecounter electrode is dependent on the peracetic acidconcentration in the solution (fig. 6). By carefulselection of the read voltage, the contribution ofhydrogen peroxide to the current flow is virtuallynegligible. The sensor effectively measuresperacetic acid concentrations in the range generallyemployed in sterilization and disinfection baths(100-3000 ppm.).
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