Lead-selective electrodes based on macrocyclic reagents
作者： E.A. Novikov , L.K. Shpigun , Yu.A. Zolotov
DOI:
关键词: Polyvinyl chloride 、 Inorganic chemistry 、 Electromotive force 、 Electrode 、 Selectivity 、 Detection limit 、 Ion 、 Reagent 、 Chemistry 、 Membrane
摘要: The determination of lead is interest for the control substances in environment. aim this work was to develop selective electrodes on basis membrane systems and study their characteristics. authors also aimed establish nature potential-determining ions order determine mechanism action find optimum conditions lead. Lead-selective with plasticized polyvinyl chloride membranes containing dibenzo-18-crown-6 3,17-diazadibenzo-18-crown-6 have a low detection limit (1-3) x 10/sup -6/ M good selectivity presence Cu(II), Cd, Zn, Ni, Co, Mn(II), Ca, Sr, Li, NH/sup 4 +/, Ag ions. are PBOH/sup +/ Pb/sup 2 +/.
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