• Spectroscopy and Spectral Analysis
  • Vol. 30, Issue 10, 2824 (2010)
LV Pei*, LI Xiang, and CHEN Jian-wei
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  • [in Chinese]
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    DOI: Cite this Article
    LV Pei, LI Xiang, CHEN Jian-wei. Study on the Speciation of Calcium in Baihu Decoction[J]. Spectroscopy and Spectral Analysis, 2010, 30(10): 2824 Copy Citation Text show less

    Abstract

    A method for speciation analysis of calcium in Baihu decoction was presented. The six different forms of Ca in the filtrate including free ions, non-free ions, exchangeable, non-exchangeable, organic and inorganic were separated by using ion-exchange resin (IER), chelating resin and organic solvent extraction. Various forms of Ca were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). The recovery for the method is 90.0%-110.0%. The result showed that Baihu decoction extract was a kind of complex solution, in which 83.25% of Ca existed in free ions form and 23.79% of Ca existed in organic form in the soluble filtrate.
    LV Pei, LI Xiang, CHEN Jian-wei. Study on the Speciation of Calcium in Baihu Decoction[J]. Spectroscopy and Spectral Analysis, 2010, 30(10): 2824
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