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Referenced Capacitively Coupled Conductivity Detector for Capillary Electrophoresis

机译：毛细管电泳参考电容耦合电导检测器

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摘要

A dual capacitively coupled contactless conductivity detector for capillary electrophoresis was developed. The two channels are arranged in a bridge configuration so that one of them acts as a reference whose signal is subtracted. This effectively compensates for the baseline conductivity of the separation buffer so that the electronic zero setting is not necessary. Changes in the buffer composition are automatically accounted for, as are temperature drifts. The system is demonstrated for the detection of inorganic model cations in capillary electrophoresis. Besides the use with two separate capillaries, one of which solely serves as reference, it was also found possible to use a single capillary which is looped back through the reference cell.
机译：开发了一种用于毛细管电泳的双电容耦合非接触式电导检测器。这两个通道以桥接配置排列，因此其中一个充当基准，其信号被减去。这有效地补偿了分离缓冲液的基线电导率，因此不需要电子调零。缓冲液组成的变化以及温度漂移都会自动得到考虑。该系统被证明可用于毛细管电泳中无机模型阳离子的检测。除了使用两个独立的毛细管（其中一个仅作为参考）外，还发现可以使用单个毛细管，该毛细管环回通过参考池。

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