离子色谱直流激励式电导检测器

提出一种用于流动体系、离子色谱的新型电导检测器,以直流电为激励源,采用四电极和单向进液、双向排液结构的电导池,克服交流,直流电导法存在的问题,简化了检测电路,并在实际应用中取得满意的结果。

Electrical Conductivity Detector Using. Direct-current in Ion Chromategrapphy

Conductometric technique is widely used in flow through systems, especially in Ion Chromatography. Although an alternative voltage (sinusoidal or square wave) is applied in conventional conductivity detector tc eliminate the effect of the processes associated with the elcctrode polarization, the effects of the capacitance which exists between the electrodes and wires cannot be avoided, and its electrical circuit is complex, A new condnetivity detector was reported ia this paper using direct voltage as driving signal. It can eliminate not only the problem of the electrode polarization,but also the effeets of the capacitance.The circuit for this detector is aimpie and the performance for this detector is superb.