Determination of Trace Strontium with o-Cresolphthaleoxon by Electroanalytical method

o-Cresolphthaleoxon을 이용한 스트론튬의 전기화학적 분석

  • Choi, Won Hyung (Department of Chemistry, Science College, Kyungsung University) ;
  • Lee, Jin Sik (Department of Chemistry, Science College, Kyungsung University) ;
  • Kim, Do Hoon (Department of Chemistry, Science College, Kyungsung University) ;
  • Kim, Jae Soo (Department of Chemistry, Science College, Kyungsung University)
  • 최원형 (경성대학교 이과대학 화학과) ;
  • 이진식 (경성대학교 이과대학 화학과) ;
  • 김도훈 (경성대학교 이과대학 화학과) ;
  • 김재수 (경성대학교 이과대학 화학과)
  • Received : 1993.01.25
  • Published : 1993.08.25

Abstract

Strontium can not be determined by conventional dc polarography method since it is very difficult to be reduced at the drop mercury electrode(DME) in aqueous solution. However the analytical sensitivity was improved by adsorptive stripping voltammetry in which electro-reduction of ligand in a complex formed between strontium and o-cresolphthaleoxone was performed. Strontium could be determined in range of $5{\sim}30{\mu}g/L$ concentration. This method was affected by coexistent alkali earth metal ions. Consequently ion exchange separation is recommended to analyze strontium in samples.