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An ICP-MS procedure to determine Cd, Co, Cu, Ni, Pb and Zn in oceanic waters using in-line flow-injection with solid-phase extraction for preconcentration

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dc.contributor Ctr Australian Weather & Climate Res
dc.contributor Univ Tasmania
dc.contributor Csiro Wealth Oceans Natl Res Flagship
dc.contributor Antarctic Climate & Ecosyst Crc
dc.contributor Commonwealth Scientific & Industrial Research Organisation (csiro)
dc.contributor University Of Tasmania
dc.contributor Arafura Timor Res Facil
dc.contributor Australian Inst Marine Sci
dc.contributor Csiro Marine & Atmospher Res
dc.contributor Australian Institute Of Marine Science
dc.contributor.author BUTLER, EDWARD C. V.
dc.contributor.author O'SULLIVAN, JEANETTE E.
dc.contributor.author WATSON, ROSLYN J.
dc.date.accessioned 2013-10-18T02:25:47Z
dc.date.accessioned 2013-10-18T02:25:47Z
dc.date.accessioned 2017-03-21T01:05:43Z
dc.date.accessioned 2019-05-09T01:22:05Z
dc.date.available 2017-03-21T01:05:43Z
dc.date.available 2017-03-21T01:05:43Z
dc.date.available 2013-10-18T02:25:47Z
dc.date.available 2019-05-09T01:22:05Z
dc.date.issued 2013-10-15
dc.identifier.citation O'Sullivan JE, Watson RJ, Butler ECV (2013) An ICP-MS procedure to determine Cd, Co, Cu, Ni, Pb and Zn in oceanic waters using in-line flow-injection with solid-phase extraction for preconcentration. Talanta 115: 999-1010 en_US
dc.identifier.issn 0039-9140
dc.identifier.uri http://epubs.aims.gov.au/11068/5402
dc.description.abstract An automated procedure including both in-line preconcentration and multi-element determination by an inductively coupled plasma mass spectrometer (ICP-MS) has been developed for the determination of Cd, Co, Cu, Ni, Pb and Zn in open-ocean samples. The method relies on flow injection of the sample through a minicolumn of chelating (iminodiacetate) sorbent to preconcentrate the trace metals, while simultaneously eliminating the major cations and anions of seawater. The effectiveness of this step is tested and reliability in results are secured with a rigorous process of quality assurance comprising 36 calibration and reference samples in a run for analysis of 24 oceanic seawaters in a 6-h program. The in-line configuration and procedures presented minimise analyst operations and exposure to contamination. Seawater samples are used for calibration providing a true matrix match. The continuous automated pH measurement registers that chelation occurs within a selected narrow pH range and monitors the consistency of the entire analytical sequence. The eluent (0.8 M HNO3) is sufficiently strong to elute the six metals in 39 s at a flow rate of 2.0 mL/min, while being compatible for prolonged use with the mass spectrometer. Throughput is one sample of 7 mL every 6 min. Detection limits were Co 3.2 pM, Ni 23 pM, Cu 46 pM, Zn 71 pM, Cd 2.7 pM and Pb 1.5 pM with coefficients of variation ranging from 3.4% to 8.6% (n=14) and linearity of calibration established beyond the observed concentration range of each trace metal in ocean waters. Recoveries were Co 96.7%, Ni 102%, Cu 102%, Zn 98.1%, Cd 92.2% and Pb 97.6%. The method has been used to analyse similar to 800 samples from three voyages in the Southern Ocean and Tasman Sea. It has the potential to be extended to other trace elements in ocean waters. (C) 2013 Elsevier B.V. All rights reserved.
dc.description.uri http://www.sciencedirect.com/science/article/pii/S0039914013005547 en_US
dc.language English
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartof Null
dc.subject Heavy-metals
dc.subject Online Preconcentration
dc.subject Chelating Resin
dc.subject Automated
dc.subject Chemistry
dc.subject Iminodiacetate Resin
dc.subject In-line
dc.subject Chemistry, Analytical
dc.subject Icp-ms
dc.subject Iminodiacetate
dc.subject Marine Biogeochemical Cycles
dc.subject Solvent-extraction
dc.subject Plasma-mass Spectrometry
dc.subject Trace-metals
dc.subject Sea-water
dc.subject Seawater
dc.subject Trace Elements
dc.title An ICP-MS procedure to determine Cd, Co, Cu, Ni, Pb and Zn in oceanic waters using in-line flow-injection with solid-phase extraction for preconcentration
dc.type journal article en_US
dc.identifier.doi 10.1016/j.talanta.2013.06.054
dc.identifier.wos WOS:000328095600142


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