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. 1967 Nov;7(6):865-77.
doi: 10.1016/S0006-3495(67)86626-8. Epub 2008 Dec 31.

Fabrication and evaluation of membranes as specific electrodes for calcium ions

R Bloch  1 , A Shatkay, H A Saroff
Affiliations

Fabrication and evaluation of membranes as specific electrodes for calcium ions

R Bloch et al. Biophys J. 1967 Nov.

Abstract

Membranes fabricated from an inert polyvinyl chloride matrix impregnated with tributyl phosphate and with tributyl phosphate plus thenoyl trifluoroacetone were tested as electrodes specific for calcium ions. Both types of membrane exhibited a high specificity for calcium ions in the presence of sodium, magnesium, and barium ions. In the presence of perturbing ions, the usefulness of membranes is limited by both the transport of current and development of potentials by the interfering ion. An experimental method for evaluating these interfering quantities is presented.

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References

    1. Science. 1957 Oct 25;126(3278):831-4 - PubMed

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