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KMID : 0370220030470060356
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Yakhak Hoeji
2003 Volume.47 No. 6 p.356 ~ p.360
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Potentiometric Characteristics of Nitroso.R-Salt-Metal Complex Based Basic Drug Selective Electrodes
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이미나/Lee MN
안문규/Ahn MK
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Abstract
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Nitroso-2-naphthol-3,6-disulfonic acid, disodium salt (NRS) was used as an organic ligand to prepare basic drug-selective polymeric membrane electrode. The sensing membrane of the electrode consited of basic drug-metal(II)-NRS as an ion-exchanger site in a poly(vinyl chloride) matrix plasticized with 2-nitrophenyl octyl ether (NPOE). The metal ions used were Fe2+, Co2+, Ni2+ and Cu2+. The eletrodes exhibited fast and wide linear response in the basic drug concentration of 10-5~10-3 mol/l with a response slope of 50~60 mV/decade in a buffer solution of pH 4~8. The electrodes exhibited good selectivity for many basic compounds.
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