Voltammetric Determination of Ag(I) ion with Carbon Paste Electrode Modified with Macrocyclic Ligand Containing Oxygen and Nitrogen as Ligating Atoms

주게원자로 산소와 질소를 포함하는 거대고리 리간드로 변성된 탄소반죽전극에 의한 Ag(I) 이온의 전압-전류법적 정량

  • Received : 2001.10.31
  • Published : 2002.02.25


Carbon paste electrodes, modified with 5,6,14,15-dibenzo-1,4-dioxa-8,12-diazacyclopentadeca-5,14-diene containing different ligating atoms of oxygen and nitrogen, have been employed for the voltammetric determination of Ag(I) ion from aqueous solution. The voltammetric response was characterized with respect to paste composition, preconcentration method, kind of anion, variation of pH, Ag(I) ion concentration, and possible interferences. Linear calibration curves were obtained for Ag(I) ion concentration ranging from $3.0{\times}10^{-6}M$ to $8.0{\times}10^{-5}M$, and detection limit was $8.5{\times}10^{-7}M$.


silver(I) ion determination;cyclic voltammetry;carbon paste electrode;5,6,14,15-dibenzo-1,4-dioxa-8,12-diazacyclopentadeca-5,14-diene


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