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首页> 外文期刊>Journal of Applied Polymer Science >Chiral recognition of tryptophan enantiomers based on a polypyrrole-flake graphite composite electrode column
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Chiral recognition of tryptophan enantiomers based on a polypyrrole-flake graphite composite electrode column

机译：基于聚吡咯-片状石墨复合电极柱的色氨酸对映体的手性识别

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摘要

A polypyrrole (PPy)-flake graphite composite was synthesized by in situ polymerization of pyrrole on flake graphite surface, and the resulting organic-inorganic composite material was developed as the conductive stationary phase in an electrode column for enantioselective recognition of tryptophan (Trp) enantiomers. Compared with the stationary phase made up with conducting PPy, the conductivity of the composite stationary phase was enhanced significantly. As a result, satisfactory enantioselectivity of Trp enantiomers can be achieved easily by modulating the potential applied on the electrode column. Various important parameters influencing the performance of the composite electrode column were investigated to obtain the optimum recognition efficiency. A recognition efficiency of 3.7 could be achieved under the optimum conditions. Enantioselectivity of the composite material for Trp enantiomers is attributed to the reversible doping/de-doping properties of PPy.
机译：通过吡咯在片状石墨表面上原位聚合合成聚吡咯（PPy）-片状石墨复合材料，并将所得的有机-无机复合材料开发为电极柱中的导电固定相，用于色氨酸（Trp）对映体的对映选择性识别。 。与导电PPy组成的固定相相比，复合固定相的电导率显着提高。结果，可以通过调节施加在电极柱上的电势容易地获得令人满意的Trp对映异构体的对映选择性。研究了影响复合电极柱性能的各种重要参数，以获得最佳识别效率。在最佳条件下，识别效率可以达到3.7。复合材料对Trp对映体的对映选择性归因于PPy的可逆掺杂/去掺杂特性。

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