X-Ray Fluorescence Analysis by Stearic Acid-Extraction Technique

스테아르산 추출법에 의한 X-선 형광분석

  • Tae Sub O (Department of Chemistry, Teacher's College, Kyungpook National University) ;
  • Man Ho Lee (Department of Industrial Chemistry, College of Engineering, Kyungpook National University) ;
  • Young Kyu Park (Dae Jeon Machine Depot)
  • 오대섭 (경북대학교 사범대학 화학과) ;
  • 이만호 (경북대학교 공과대학 공업화학과) ;
  • 박영규 (대전기계창)
  • Published : 1984.02.20

Abstract

To preconcentrate trace elements, microgram amounts of 5 heavy metals (Cu, Co, Ni, Zn and Cd) were precipitated with 8-hydroxyquinoline (oxine) and metal oxinates were extracted with stearic acid. And then each of the molten stearic acid extract with stearic acid. And then each of the molten stearic acid extract was poured into a glass ring and cooled for specimen preparation. The obtained specimens were analyzed by X-ray fluorescene spectrometry. And then conditions of precipitation formation and extraction, reproducibility, sensitivity and detection limit were observed. The relative standard deviation of specimen preparation was 1.0~5.7% and the detection limit was 5~$50{\mu}g$/100ml. The proposed preconcentration procedure exhibited a considerable inhancement and simplicity in preparing specimens.

Keywords

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