The Analysis of Trace Metals in Biological Reference Materials: A Discussion of the Results of the Intercomparison Studies Conducted by the International Council for the Exploration of the Sea
The reference materials used in these exercises were prepared from fish and shellfish tissue and distributed in the main to laboratories within the ICES framework which were participating in the ICES fish and shellfish pollution monitoring programme.
The results of these exercises showed that there was a progressive improvement in the comparability of analytical results of Cu, Zn and Hg at concentrations normally found in fish and shellfish tissue i.e. 30–280 pmol kg−1 (dry wt), 350–1000 pmol Zn kg−1 (dry wt) and 0.25–4.0 pmol Hg kg−1 (dry wt). However, the results of the Cd and Pb analysts were in general not as encouraging. The range of values reported by participants for these metals covered more than an order of magnitude at tissue concentrations in the ranges 0.009–0.9 pmol Cd kg−1 (dry wt) and 0.024–4.8 umol Pb kg−1. The most recent exercise for Cd and Pb showed that comparable data was obtained for tissue concentrations of 10 pmol kg−1 (dry wt) and 12 pmol kg−1 (dry wt) respectively i.e. concentrations normally found in shellfish tissue.
KeywordsFish Muscle Nickel Salt Biological Reference Material Intercomparison Exercise Shellfish Tissue
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- Anon., 1974: Report of Working Group for the International Study of the Pollution of the North Sea and its Effects on Living Resources and their Exploitation. ICES Coop. Res. Rep. No. 39. Google Scholar
- Anon., 1977: A baseline study of the level of contaminating substances in living resources of the North Atlantic. ICES Coop. Res. Rep. No. 69. Google Scholar
- Anon., 1980: Extensions to the baseline study of contaminant levels in living resources of the North Atlantic. ICES Coop. Res. Rep. No. 95. Google Scholar
- Anon., 1977a: The ICES Coordinated Monitoring Programme in the North Sea, 1974. ICES Coop. Res. Rep. No. 58. Google Scholar
- Anon., 1977b: The ICES Coordinated Monitoring Programmes, 1975 and 1976. ICES Coop. Res. Rep. No. 72. Google Scholar
- Anon., 1980: The ICES Coordinated Monitoring Programme, 1977. ICES Coop. Res. Rep. No. 98. Google Scholar
- Topping, G. and A.V. Holden, 1978: Report on intercalibration analysis in ICES North Sea and North Atlantic baseline studies. ICES Coop. Res. Rep. No. 80. Google Scholar
- Topping, G., 1982: Report on 6th ICES trace metal inter-comparison exercise for cadmium and lead in biological tissue. ICES Coop. Res. Rep. No. 111. Google Scholar
- Holden, A.V. and G. Topping, 1981: Review on further inter-calibration analysis in ICES Pollution Monitoring and Baseline Studies. ICES Coop. Res. Rep. No. 108. Google Scholar
- O’Neill, R. and G.B. Wetherill, 1971: The present state of multiple comparison methods. J. Roy. Stat. Soc. Series B., 33, 218–250.Google Scholar
- 11.Anon., 1972: Baseline studies of pollutants in the marine environment and research recommendations. The IDOE Baseline Conference, May 24–26, 1972. New York, 1972.Google Scholar
- 12.Beckert, W.F., 1978: Mercury, lead, arsenic and cadmium in biological tissue: the need for adequate standard reference materials. US Dept. of Commerce. National Technical Information Service PB-288–198.Google Scholar
- IAEA, 1978: International Atomic Energy Agency, Monaco: Intercalibration of analytical methods on marine environmental samples. Progress Report No. 19. (November, 1978).Google Scholar
- IAEA, 1980: International Atomic Energy Agency, Monaco: Intercalibration of analytical methods on marine environmental samples. Progress Report No. 20. (April, 1978).Google Scholar
- Hamilton, E.I., 1976: Review of the Chemical Elements and Environmental Chemistry - Strategies and Tactics. Sci. Total Environ. 5, (1976), 1–62.Google Scholar