在银掺杂聚L-苯丙胺酸修饰电极上，以人体代谢产物尿酸为探针，研究了不同表面活性剂（十六烷基三甲基溴化铵（CTMAB）、十二烷基硫酸钠（SDS）和聚乙二醇单辛基苯基醚（Triton X-100））存在下对尿酸电化学行为的影响。结果表明，三种不同类型表面活性剂对尿酸的电化学行为均有影响，不同表面活性剂存在下，尿酸在修饰电极上氧化电位变化不大，氧化电流均有所降低，在研究的三种不同类型表面活性剂中，对峰电流的影响最大的是CTMAB、最小的是SDS。%The electrochemical behaviors of uric acid in the presence of different surfactant (cetyl trimethyl ammonium bromide, sodium dodecyl sulfate and Triton X-100) solution have been studied by cyclic voltammetry at silver doped L-phenylanine modified electrode. The results showed that the oxidation peak currents of uric acid decreased with the peak potential changed slightly in different surfactants. The cetyl trimethyl ammonium bromide has a greatest effect on the peak current of uric acid, meanwhile the sodium dodecylsulfate has a smallest effect.
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