Xu, M., 2018. Determination of Sr isotopes in seawater by mass spectrometry. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 247–250. Coconut Creek (Florida), ISSN 0749-0208.

The traditional measurement method has the problems of small separation of matrix impurities, large loss of Sr and poor effect. Therefore, mass spectrometry is used to determine Sr isotopes in seawater. The anion and cation have different adsorption and desorption ability under different pH values. By using this characteristic, ion exchange resin is made as the ion exchange column. Using different concentrations and different leaching solution, the different ions separation from each other are prompted, thus obtaining relatively pure samples, and complete the test of 87Sr/86Sr by mass spectrometry. The experimental results show that the separation degree of impurities in the matrix is large, Sr has no loss, and the effect is better by the determination of Sr isotopes in seawater by mass spectrometry.

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