Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 538930
Title Inter-laboratory study for the certification of trace elements in seawater certified reference materials NASS-7 and CASS-6
Author(s) Yang, Lu; Nadeau, Kenny; Meija, Juris; Grinberg, Patricia; Pagliano, Enea; Ardini, Francisco; Grotti, Marco; Schlosser, Christian; Streu, Peter; Achterberg, Eric P.; Sohrin, Yoshiki; Minami, Tomoharu; Zheng, Linjie; Wu, Jingfeng; Chen, Gedun; Ellwood, Michael J.; Turetta, Clara; Aguilar-Islas, Ana; Rember, Robert; Sarthou, Géraldine; Tonnard, Manon; Planquette, Hélène; Matoušek, Tomáš; Crum, Steven; Mester, Zoltán
Source Analytical and Bioanalytical Chemistry 410 (2018)18. - ISSN 1618-2642 - p. 4469 - 4479.
DOI https://doi.org/10.1007/s00216-018-1102-y
Department(s) Alterra - Environmental risk assessment
Publication type Refereed Article in a scientific journal
Publication year 2018
Abstract Certification of trace metals in seawater certified reference materials (CRMs) NASS-7 and CASS-6 is described. At the National Research Council Canada (NRC), column separation was performed to remove the seawater matrix prior to the determination of Cd, Cr, Cu, Fe, Pb, Mn, Mo, Ni, U, V, and Zn, whereas As was directly measured in 10-fold diluted seawater samples, and B was directly measured in 200-fold diluted seawater samples. High-resolution inductively coupled plasma mass spectrometry (HRICPMS) was used for elemental analyses, with double isotope dilution for the accurate determination of B, Cd, Cr, Cu, Fe, Pb, Mo, Ni, U, and Zn in seawater NASS-7 and CASS-6, and standard addition calibration for As, Co, Mn, and V. In addition, all analytes were measured using standard addition calibration with triple quadrupole (QQQ)-ICPMS to provide a second set of data at NRC. Expert laboratories worldwide were invited to contribute data to the certification of trace metals inNASS-7 and CASS-6.
Various analytical methods were employed by participants including column separation, co-precipitation, and simple dilution coupled to ICPMS detection or flow injection analysis coupled to chemiluminescence detection, with use of double isotope dilution calibration, matrix matching external calibration, and standard addition calibration. Results presented in this study show that majority of laboratories have demonstrated their measurement capabilities for the accurate determination of trace metals in seawater. As a result of this comparison, certified/reference values and associated uncertainties were assigned for 14 elements in seawater CRMs NASS-7 and CASS-6, suitable for the validation of methods used for seawater analysis.
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