Application of Inductively Coupled PlasmaMass Spectrometry to the Determination of Elementsin Marine OrganismsApplication of Inductively Coupled Plasma Mass Spectrometry to the Determination of Elements in Marine Organisms
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The applicability of inductively coupled plasma mass spectrometry (ICP-MS) to the determination of elements in marine organisms was compared with that of inductively coupled plasma atomic emission spectrometry (ICP-AES). Both analytical techniques indicated the excellent linearity over a very wide dynamic range covering 2-4 orders of magnitude. The detection limits of elements by ICP-MS were ten or one hundred times better than those by ICP-AES. The precision and accuracy of ICP-MS was slightly inferior to ICP-AES. For the quantitative analysis of medium mass range elements (Cr, Mn, Fe, Ni, Cu, Zn, etc.), matrix interferences of ICP-MS were mainly observed as spectral overlaps from a large amount of coexisting elements contained in the biological samples. It was found that background ions from atmosphere, water, and argon plasma interfered with some isotopes of elements of interest. It was concluded that ICP-MS is one of the most effective multielement analytical techniques for marine organism samples, because of large dynamic ranges, low detection limits and satisfactory precision and accuracy, although special attention to spectral interferences from molecular ions such as oxides, halides, hydrides, dimer etc. is necessary.
- 社団法人 環境科学会の論文
社団法人 環境科学会 | 論文
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