Determination of mercury in tuna fish tissue using isotope dilution-inductively coupled plasma mass spectrometry |
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| Authors: | Sang Hak Lee Jung Ki Suh Sang Hak Lee |
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| Institution: | aDepartment of Chemistry, Kyungpook National University, Taegu, 702-701, Korea;bDivision of Chemical Metrology and Materials Evaluation, Korea Research Institute of Standards and Science, P.O. Box 102, Yusung, Taejon, 305-600, Korea |
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| Abstract: | Isotope dilution-inductively coupled plasma mass spectrometry (ID-ICP/MS) was applied to determine mercury in living tissue. Microwave digestion method using HNO3/H2O2 media for the dissolution of solid sample was studied. The procedure for accurate determination of total mercury in tuna fish tissue sample by ID-ICP/MS is described. For the method validation, total Hg concentration in tuna fish CRM (BCR CRM 463) was determined by ID-ICP/MS after addition of 202Hg to CRM followed by acid decomposition of the spiked sample. This method was applied to the determination of Hg in tuna fish CCQM-P39 sample provided by IRMM (Institute for Reference Materials and Measurement, GEEL, Belgium) for the international comparison study. |
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| Keywords: | Hg Isotope dilution-inductively coupled plasma mass spectrometry CCQM-P39 Tuna fish tissue |
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