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首页> 外文期刊>Electroanalysis >A capillary electrophoresis conductometric detector based on measurement of the conductivity of a plastic hydrophilic strip
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A capillary electrophoresis conductometric detector based on measurement of the conductivity of a plastic hydrophilic strip

机译：基于塑料亲水性条带电导率测量的毛细管电泳电导检测器

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摘要

A new approach to the solution of the problem of interference of the intense electric field encountered in CE with electrochemical detection is described. The conductometric detector is designed so that the conductivity is determined of the solution emerging from the capillary outlet and trapped in a hydrophilic plastic strip which connects the capillary end that is not directly immersed in solution, with the solution in the outlet electrophoretic vessel. One conductometric electrode contacting the hydrophilic strip is placed at the side of the capillary and is thus sufficiently shielded from the electric field and the other is far from the capillary end in the outlet vessel. Basic performance characteristics of the detector are determined and compared with those obtained using a standard UV detector The detector was tested for determination of sodium and potassium ions in natural mineral waters. [References: 8]
机译：描述了一种解决CE中遇到的强电场干扰电化学检测问题的新方法。设计电导检测器，以便确定从毛细管出口流出并被捕获在亲水性塑料条中的溶液的电导率，该条带将未直接浸入溶液中的毛细管端与出口电泳容器中的溶液连接起来。一个与亲水条接触的电导电极位于毛细管的侧面，因此可以充分屏蔽电场，而另一个电极则远离出口容器中的毛细管端。确定检测器的基本性能特征，并将其与使用标准UV检测器获得的性能进行比较。对检测器进行了检测，以测定天然矿泉水中的钠和钾离子。 [参考：8]

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