Determination of trace elements in shellfish tissue samples by inductively coupled plasma mass spectrometry Original Research Article

The determination of trace elements in shellfish tissue samples by inductively coupled plasma mass spectrometry (ICP-MS) has been investigated. After determination of major and minor inorganic elements by ICP atomic emission spectrometry (AES), the internal standardization was discussed as a correction method for matrix effects in ICP-MS. The results obtained by quadrupole (Q)-ICP-MS after acid digestion almost agreed well with reported values. The high resolution (HR)-ICP-MS technique was applied to the determinations of V, Cr, Co, Ni and As in order to remove the mass spectral overlapping caused by polyatomic ions. A sealed bomb decomposition was also discussed for the determinations of As, Se and Hg. The lanthanide patterns obtained by Leedy chondrite normalization showed smooth curves.