Abstract
Metal complexes with a hydroxamic acid, namely, N-phenyl-N-(3-styrylacryloyl)hydroxylamine (PSAHA), are promising reagents for use in the preparation of cation- and anion-selective electrodes. The in situ formation of metal complexes by membrane conditioning in a solution of an appropriate metal salt made it possible to prepare cation-selective electrodes for methyl ester of phenylalanine (UO2+ 2) and anion-selective electrodes for tryptophan, phenylalanine (Sn(IV)), and aspartic acid (Cu(II)). The PSAHA-based membrane is sensitive to nitrate ions in solutions of uranyl nitrate (the metal complex is formed in the membrane even without special conditioning).
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Berdnikova, L.P., Shvedene, N.V. & Pletnev, I.V. Hydroxamic Acids and Their Metal Complexes Obtained in situ as Electrode-Active Components in the Membranes of Ion-Selective Electrodes. Russian Journal of Coordination Chemistry 28, 816–821 (2002). https://doi.org/10.1023/A:1021119217663
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DOI: https://doi.org/10.1023/A:1021119217663