00000nam 2200000za 4500 9.848048 CaOODSP 20241203113640 cr ||||||||||| 171129s1985 onca|||fo f000 0 eng d CaOODSP eng eng fre n-cn--- En13-5/85-76E-PDF Lum, K. R. Matric effects in the determination of lead by Zeeman effect electrothermal AAS [electronic resource] / K.R. Lum, G.R. McIsaac, and B. Radziuk. Burlington, Ont. : Environmental Contaminants Division, National Water Research Institute, Canada Centre for Inland Waters, 1985. 11, [3] p. : ill. NWRI contribution ; no. 85-76 "Division Control No. ECD-107B". "This manuscript will become a part of the Proceedings of Colloquium Spectroscopicum International XXIV Conference held in Garmisch-Partenkirchem, FRG, September 1985". Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "Our data base on the concentrations (and hence exposure levels) of trace metals in aquatic systems is imperfect because of the use of analytical procedures which do not have the required detection limits. When very sensitive procedures are used, such as graphite furnace AAS, there is often a greater effect of interferences which become analytically significant at the trace and ultratrace levels. Application of such procedures to complex samples, eg sediment extracts, also is prone to interference effects. It is therefore essential to study and wherever possible, eliminate or minimize such effects in order to obtain precise and accurate data on the environmental behaviour of toxic metal ions. This report has been prepared for the Colloquium Spectroscopicum Internationale, September 15-21, 1985, FRG, and is one example of the type of approach we have used to understand the nature of interferences in graphite furnace AAS"--Management perspective. Includes management perspective and abstract in English and French. gccst Toxic substances gccst Testing McIssac, G. Radziuk, B. Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 85-76 (CaOODSP)9.844121 PDF 887 KB https://publications.gc.ca/collections/collection_2017/eccc/En13-5-85-76-eng.pdf