Inorganic elements in oysters by ICP-MS combined with chemometrics and risk assessment
Objective To determine the content of 13 inorganic elements in oysters,analyze the correlation between inorganic elements and their origins in oysters of different sources,and evaluate their health risks of 5 heavy metals and harmful elements.Methods ICP-MS was used to analyze the elemental in 49 batches of oyster samples.Cluster analysis,principal component analysis,PLS-DA and other methods were used to comprehensively evaluate the daily maximum allowable intake,target hazard coefficient,and the carcinogenic risk of heavy metals such as Cu,As,Cd,Hg,and Pb and other harmful elements in oysters.Results There was close correlation between trace element content and place of origin,with VIP values of K,Mg,Al,Ni,and Fe higher than 1,indicating obvious difference in the health risk assessment.The 5 elements(Cu,As,Cd,Hg and Pb)in oysters were used as evaluation indicators,and As,Hg and Pb in the samples was found exceed the prescribed limit,indicating there was potential carcinogenic risk caused by the use of oysters.Conclusion This study clarifies the correlation between inorganic element content and origin of oysters.The risk assessment of heavy metals helps improve the safety and quality standards of oyster medicinal materials.
inductively coupled plasma mass spectrometryoysterinorganic elementchemometricshealth risk assessment
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