Determination of Trace Amounts of Zinc in Water Samples by Flow Injection Isotope Dilution Inductively Coupled Plasma Mass Spectrometry
- 1 January 1997
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 122 (3) , 233-238
- https://doi.org/10.1039/a606577e
Abstract
Flow injection isotope dilution ICP-MS was applied to the determination of zinc in several water samples. A matrix separation and preconcentration system was used for the separation of Mg, Ca, S and Cl matrix and preconcentration of trace amounts of zinc in high salt content samples. A complete preconcentration cycle was accomplished in 4 min. The isotope ratio for each injection was calculated from the peak areas of the flow injection peaks. The precision for the isotope ratio determination was better than 1.7%. A detection limit of 0.014 ng ml - 1 was obtained for zinc with this method. The method was successfully applied to the determination of trace levels of zinc in SLRS-2 riverine water, SLEW-2 estuarine water, NASS-3 open ocean sea-water and CASS-3 nearshore sea-water reference samples.Keywords
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