FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (16): 223-227.doi: 10.7506/spkx1002-6630-200916048

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High Performance Liquid Chromatography-Inductively Coupled Plasma-Mass Spectrometry for the Determination of Arsenic Content and Speciation in Enteromorpha

YU Jing-jing1，CAO Xuan1,2，CUI Wei-gang1,3，YU Zhen-hua1,4，LEE Frank Sen-Chun1，WANG Xiao-ru1,5,*   

  1. 1. First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China ；2. College of Chemistry and Chemical
    Engineering, Ocean University of China, Qingdao 266003, China；3. College of Fisheries and Life Science, Shanghai Ocean
    University, Shanghai 201306, China ；4. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China ；
    5. College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China)
  • Received:2008-11-14 Online:2009-08-15 Published:2010-12-29
  • Contact: WANG Xiao-ru1,5,* E-mail:wang2003@yahoo.com.cn

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Abstract:

This study analyzed arsenic content and speciation in Enteromorpha sampled from various coastal zones of Qindao using high performance liquid chromatography coupled to inductively coupled plasma-mass spectrometry (HPLC-ICP-MS). The results showed that the total arsenic content in Enteromorpha was ranged from 3.0 to 9.7 μg/g. The speciation analysis of hot water extract of Enteromorpha indicated that the major arsenic forms in Enteromorpha were inorganic quinquevalence arsenate and a substance suspected as arsenic sugar. Besides, there were small amounts of inorganic trivalence arsenite and dimethylarsenate (DMA) in the extract. Due to the toxicity or potential toxicity of these arsenic forms, it should be paid great caution in the application of Enteromorpha as a material for food and medicine.

Key words: Enteromorpha, arsenic, speciation analysis, high performance liquid chromatography-inductively coupled plasma-mass spectrometry (HPLC-ICP-MS)

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