铅锌离子的毛细管电泳非接触性电导检测

<title>paration and Determination of Pb^(2+) and Zn^(2+) by Capillary Electrophoresis High Frequency Conductivity Detection

采用高效毛细管电泳非接触性电导检测法分离检测了重金属铅锌离子。考察了缓冲溶液的浓度,分离电压,重力进样时间等对分离效果的影响。在选定的实验条件:20 mmol／L的H3PO4缓冲溶液,分离电压20.0kV,重力虹吸进样10s,进样高度为20cm下,铅锌离子在5 min内完成分离检测。

<abstract>e separation and determination of Pb2+ and Zn2+ was reported by capillary electrophoresis with high frequency conductivity detector in this paper. The effects of concentration of the running buffer, operation voltage and hydrodynamic injection time were investigated and discussed. Within 5 min, Pb2+ and Zn2+ could be well separated under the suitable conditions: 20mmol/L H3PO4 buffer, the separation potential 20.0 kV, hydrodynamic injection 10s at 20cm height.