HPLC-HG-ICP-MS: a sensitive and selective method for inorganic arsenic in seafood |
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| Authors: | ásta H Pétursdóttir Helga Gunnlaugsdóttir Hr?nn J?rundsdóttir Adrien Mestrot Eva M Krupp J?rg Feldmann |
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| Institution: | TESLA-Trace Element Speciation Laboratory, Chemistry, College of Physical Sciences, University of Aberdeen, Aberdeen, AB24 3UE, UK. |
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| Abstract: | The addition of an online post-column hydride generation (HG) step to the commonly used high-performance liquid chromatography inductively coupled plasma-mass spectrometry (HPLC-ICP-MS) setup for arsenic speciation proved to significantly improve the detection limits for the determination of inorganic arsenic (iAs) as arsenate in seafood samples, where the limit of detection and limit of quantification were found to be 0.0004 and 0.0014?mg?kg(-1), respectively with HG. HG as an additional step further added to the selectivity of the determination of the iAs species and increased the detection and quantification of low levels of iAs (<0.002?mg?kg(-1)) in samples with complicated matrices. |
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