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Title: Intracellular magnesium ion selective microelectrode based on a neutral carrier. Author: Hu ZM, Bührer T, Müller M, Rusterholz B, Rouilly M, Simon W. Journal: Anal Chem; 1989 Mar 15; 61(6):574-6. PubMed ID: 2729592. Abstract: 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.[Abstract] [Full Text] [Related] [New Search]