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
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 th...
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ftunivtasecite:oai:ecite.utas.edu.au:91588 2023-05-15T18:25:50+02:00 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 O'Sullivan, JE Watson, RJ Butler, ECV 2013 https://doi.org/10.1016/j.talanta.2013.06.054 http://www.ncbi.nlm.nih.gov/pubmed/24054694 http://ecite.utas.edu.au/91588 en eng Elsevier Science Bv http://dx.doi.org/10.1016/j.talanta.2013.06.054 O'Sullivan, JE and Watson, RJ and Butler, ECV, 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 pp. 999-1010. ISSN 0039-9140 (2013) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/24054694 http://ecite.utas.edu.au/91588 Chemical Sciences Analytical Chemistry Analytical Spectrometry Refereed Article PeerReviewed 2013 ftunivtasecite https://doi.org/10.1016/j.talanta.2013.06.054 2019-12-13T21:54:45Z 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 ~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. Article in Journal/Newspaper Southern Ocean eCite UTAS (University of Tasmania) Southern Ocean Talanta 115 999 1010 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Chemical Sciences Analytical Chemistry Analytical Spectrometry |
spellingShingle |
Chemical Sciences Analytical Chemistry Analytical Spectrometry O'Sullivan, JE Watson, RJ Butler, ECV 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 |
topic_facet |
Chemical Sciences Analytical Chemistry Analytical Spectrometry |
description |
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 ~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. |
format |
Article in Journal/Newspaper |
author |
O'Sullivan, JE Watson, RJ Butler, ECV |
author_facet |
O'Sullivan, JE Watson, RJ Butler, ECV |
author_sort |
O'Sullivan, JE |
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 |
title_short |
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 |
title_full |
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 |
title_fullStr |
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 |
title_full_unstemmed |
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 |
title_sort |
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 |
publisher |
Elsevier Science Bv |
publishDate |
2013 |
url |
https://doi.org/10.1016/j.talanta.2013.06.054 http://www.ncbi.nlm.nih.gov/pubmed/24054694 http://ecite.utas.edu.au/91588 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
http://dx.doi.org/10.1016/j.talanta.2013.06.054 O'Sullivan, JE and Watson, RJ and Butler, ECV, 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 pp. 999-1010. ISSN 0039-9140 (2013) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/24054694 http://ecite.utas.edu.au/91588 |
op_doi |
https://doi.org/10.1016/j.talanta.2013.06.054 |
container_title |
Talanta |
container_volume |
115 |
container_start_page |
999 |
op_container_end_page |
1010 |
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1766207527461060608 |