Lithium Ion Selective Electrode Based on a Synthetic Neutural Carrier

Kim, Jae Sang; 김재상

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P-ISSN1225-0163
E-ISSN2288-8985
SCOPUS, ESCI, KCI

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P-ISSN 1225-0163
E-ISSN 2288-8985

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Vol.5, No.1

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Lithium Ion Selective Electrode Based on a Synthetic Neutural Carrier

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985

1992, v.5 no.1, pp.33-39

Kim, Jae Sang

Kim, J. S. (1992). Lithium Ion Selective Electrode Based on a Synthetic Neutural Carrier. , 5(1), 33-39.

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Abstract

THF-based crown-4 of 16-membered rings having tetrahydrofuran unit was synthesized by an acid-catalyzed condensation of furan and acetone followed by hydrogenation in an effort to obtain highly elective ionophores for lithium ions. The new ionophore was compared with previously reported ionophores under similar measurement conditions with the same plasticizer, tris(2-ethylhexyl) phosphate in poly(vinyl chloride)(PVC) membrane electrodes. Separate solution method was used to determine relative selectivity coefficients for the electrode. The selectivity coefficients($K_{LiM}^{POT}$) of lithium over ammonium, alkali and alkaline earth metal ions go from about $2.4{\times}10^{-1}$ to $2.3{\times}10^{-4}$ to working range and pH dependence have also been studied.