Hu Z M, Bührer T, Müller M, Rusterholz B, Rouilly M, Simon W
Anal Chem. 1989 Mar 15;61(6):574-6. doi: 10.1021/ac00181a015.
A magnesium ion selective microelectrode based on a synthetic neutral carrier is presented. The selectivity of Mg2+ over Na+, K+, H+, and Ca2+ is sufficient for assays of intracellular magnesium ion activities. The microelectrodes with an optimized membrane composition have a resistance of about 5 x 10(10) omega and a 90% response time of less than or equal to 3 s for a tip diameter around 1 microns. The lifetime of the microelectrode cell assembly is longer than 1 week and the emf drift after equilibration is less than or equal to 0.3 mV/h.
介绍了一种基于合成中性载体的镁离子选择性微电极。Mg2+ 对 Na+、K+、H+ 和 Ca2+ 的选择性足以用于细胞内镁离子活性的测定。具有优化膜组成的微电极电阻约为 5×10(10) 欧姆，对于尖端直径约为 1 微米的情况，90% 的响应时间小于或等于 3 秒。微电极电池组件的寿命超过 1 周，平衡后的电动势漂移小于或等于 0.3 mV/h。
