Determination of inorganic arsenic in seafood by solid phase extraction inductively coupled plasma mass spectrometry
Received:May 21, 2020  Revised:May 27, 2020
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DOI:10.3969/j.issn.2095-1035.2021.01.004
KeyWord:olid phase extraction; amino group; sulfhydryl group; inductively coupled plasma mass spectrometry (ICP-MS); inorganic arsenic
              
AuthorInstitution
lilinchuan 云南同创检测技术股份有限公司
WU Jianwei 云南同创检测技术股份有限公司
HU Jianxi 云南同创检测技术股份有限公司
BI Chenxi 云南同创检测技术股份有限公司
SU Zhong 云南同创检测技术股份有限公司
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Abstract:
      Differentiate N-(βaminoethyl)-?-aminopropyltrimethoxysilane(AEAPTMS) and 3-Mercaptopropyltrimethoxysilane (MPTMS) was added to tetraethoxysilane(TEOS) mixture respectively,get silica gel materials Separate bonded amino group and mercapto group.This material is used as the filling material of SPE column, the method for the determination of inorganic arsenic in marine products by inductively coupled plasma mass spectrometry (ICP-MS) with solid phase extraction was established.We study adsorption principle, adsorption performance and elution conditions of solid phase extraction column for inorganic arsenic,results show that this solid phase extraction column material has good selective adsorption capacity In the range of pH3-4,As (V) can be eluted with 2% nitric acid,As (Ⅲ) can be eluted with 2% nitric acid and 0.1mol/L KIO3 mixed solution.The standard addition recovery of the actual sample is between 73% and 103% ,the method has realized the rapid, convenient and accurate detection of inorganic arsenic in seafood samples.
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