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A PVC/TTF-TCNQ composite electrode for use as a detector in flow injection analysis

机译：PVC / TTF-TCNQ复合电极，用作流动注射分析中的检测器

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摘要

A new polyvinyl chloride (PVC)/tetrathiafulvalene-tetracyanoquinodimethane (TTF-TCNQ) composite electrode was prepared and tested for electroanalytical performance. Different PVC/TTF-TCNQ-graphite proportions were used in order to obtain the best possible detector for accommodation in a wall-jet electrochemical cell of use in flow injection analysis. A PVC/fTF-TCNQ w/w ratio of 1/10 provided the best results in terms of sensitivity, coefficients of variation and mechanical resistance. The voltammetric and flow-injection amperometric detection responses of the electrode to ascorbic acid (AA) were measured and compared with those of a PVC-graphite electrode. The resulting electrode provided good electrode kinetics with a low background current and a relatively reproducible signal. In addition, the electrode can be readily prepared and its surface readily renewed.
机译：制备了新的聚氯乙烯（PVC）/四硫富瓦烯-四氰基喹二甲烷（TTF-TCNQ）复合电极，并进行了电分析性能测试。为了获得最佳的检测器，以适应在流动注射分析中使用的壁流式电化学池，使用了不同的PVC / TTF-TCNQ-石墨比例。 PVC / fTF-TCNQ w / w比为1/10，在灵敏度，变异系数和机械阻力方面提供了最佳结果。测量了电极对抗坏血酸（AA）的伏安和流动注射安培检测响应，并将其与PVC石墨电极进行了比较。所得电极在低背景电流和相对可再现信号的情况下提供了良好的电极动力学。另外，电极可以容易地制备并且其表面容易更新。

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