• Core Journal of China
  • DOAJ
  • Scopus
  • Chinese Scientific and Technical Papers and Citations (CSTPC)
  • Chinese Science Citation Database (CSCD)
YU Zhao-shui, ZHANG Qin, LIU Ling. Determination of Water Soluble As(Ⅲ) and As(Ⅴ) in Soil by Hydride Generation-Atomic Fluorescence Spectrometry[J]. Rock and Mineral Analysis, 2012, 31(5): 838-841.
Citation: YU Zhao-shui, ZHANG Qin, LIU Ling. Determination of Water Soluble As(Ⅲ) and As(Ⅴ) in Soil by Hydride Generation-Atomic Fluorescence Spectrometry[J]. Rock and Mineral Analysis, 2012, 31(5): 838-841.

Determination of Water Soluble As(Ⅲ) and As(Ⅴ) in Soil by Hydride Generation-Atomic Fluorescence Spectrometry

  • Based on the determination method of Sb(Ⅲ) and Sb(Ⅴ) in soil, a method for the determination of water soluble As(Ⅲ) and total arsenic in soil has been established by using Hydride Generation-Atomic Fluorescence Spectrometry (HG-AFS) in the media of 0.3 mol/L NaH2PO4-Na2HPO4. An amount of As(Ⅴ) was obtained by subtracting As(Ⅲ) from total arsenic. The hydrogen was provided from a hydrogen generator instead of chemical reaction to ignite a H2-Ar flame. Therefore, arsenic in any media was measurable since the arsenic was reduced into AsH3. Effects on the determination of As(Ⅲ) and As(Ⅴ) were investigated for concentrations of NaH2PO4-Na2HPO4 from 0.02 mol/L to 0.4 mol/L. The results show As(Ⅴ) can be screened by 0.3 mol/L NaH2PO4-Na2HPO4. The detection limits were 2.92 ng/g for As(Ⅲ) and 2.35 ng/g for total As. The recoveries of As(Ⅲ) and As(Ⅴ) are 96%-104% and 101%-103%, respectively. The method was simple and highly accurate, meeting the requirements for multiple sample analysis.
  • loading

Catalog

    Turn off MathJax
    Article Contents

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return