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近年来为在很小试样容积中或在单细胞中进行离子活度的测定促进了微电极的研究。微电极的制作以液体离子交换剂微电极最易,早在1971年Walker就制成了钾、氯液体离子交换剂微电极,以后Brown等人又制成玻璃管塑料膜钙微电极,但玻璃管微电极均太脆弱,至今还无商品生产,而自制这些电极不仅需要特殊的微电极拉制器并需对毛细管进行疏水处理,这在一般实验室中难于做到,PVC膜电极的制作在各实验室都能进
In recent years, the research of microelectrodes has been promoted to measure the ion activity in a small sample volume or in a single cell. Microelectrode production to liquid ion exchange microelectrode most easily, as early as in 1971 Walker made of potassium, chlorine liquid ion exchange microelectrode, later Brown et al made glass plastic plastic film calcium microelectrode, but the glass Tube microelectrodes are too fragile, so far there is no commercial production, and self-made these electrodes not only need special micro-electrode drawer and the need for capillary hydrophobic treatment, which is difficult to do in a general laboratory, PVC membrane electrode in Each laboratory can enter