Determination of $Mg^{2+}$ using 5-membered Heterocyclic Compound

5원자 헤테로고리 화합물을 이용한 $Mg^{2+}$의 정량

  • Seo, Moo Lyong (Department of Chemistry, Gyeongsang National University) ;
  • Lee, Shim Sung (Department of Chemistry, Gyeongsang National University) ;
  • Kim, Jae Sang (Department of Chemistry, Gyeongsang National University) ;
  • Park, Tae Myung (Department of Environmental Engineering, Soon cheon Junior Technical College)
  • 서무룡 (경상대학교 자연대 화학과) ;
  • 이심성 (경상대학교 자연대 화학과) ;
  • 김재상 (경상대학교 자연대 화학과) ;
  • 박태명 (순천공업전문대학 환경공업과)
  • Received : 1993.06.28
  • Published : 1993.08.25

Abstract

Ionophore, which contains 5-membered heterocyclic compound, was prepared. $Mg^{2+}$ was determined by salting-out technique using ionophore as a chelating reagent. After $Mg^{2+}$ was extracted into the acetonitrile layer as a Mg-$(Ionophore)_2$ complex from acetate buffered aqueous solution by salting-out extraction technique, absorbance of complex was recorded by atomic absorption spectrophotometry. Optimum pH was between 2.5 and 5.0 for extraction and 1:2([$Mg^{2+}$]/[ionophore]) complex were formed. The range of detection was 0.24ppm~2.4ppm and $Ca^{2+}$ and EDTA were interfered in the determination of $Mg^{2+}$.

Acknowledgement

Supported by : 학술진흥재단, 교육부