ISSN:
1432-0517
Keywords:
Key words Trace metals
;
Intercomparison
;
Suspended particulate material
;
ICES
;
Quality assurance
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The aim of this intercomparison exercise was to assess the comparability of trace metal analyses of blank filters and of marine suspended particulate matter (SPM) on filters performed by laboratories in ICES member countries. Fifteen experts from the United Kingdom, Canada, France, Germany, the Netherlands, Norway, Poland, Russia, and the United States were invited to participate in this exercise for trace metal analyses of Cu, Pb, Zn, Cd, Al, Li, Fe, Mn, Ni and Co (tentative) in SPM. Each filter analysed in this project was an individual sample, the absolute loadings on the filters varying from 0.8 to 2 mg of SPM. The inter-laboratory means and the relative standard deviations (RSD) from the grand mean for the metals determined were: Al 67.5 mg/g, 8.3%, Fe 51.7 mg/g, 10.9%, Cd 1.5 μg/g, 22.7%, Cu 39 μg/g, 13.3%, Pb 38 μg/g, 34.7%, Mn 1060 μg/g, 13%, Ni 49.2 μg/g, 29%, Zn 182 μg/g, 32.5%, Li 52.8 μg/g, 26.1%, Co 15.4 μg/g, 23.6%. In general, the exercise demonstrated that it is possible for the various participants to collect very small amounts of SPM and analyse it by the different determination techniques. Compared to earlier exercises, comparability between laboratories was still difficult to achieve and limited.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s007690050088
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