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TitleAn on-site method for measuring aluminium speciation in shallow well water samples from areas exposed to acid rain
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AuthorMeranger, J C; Lett, R E; Pickering, T
SourceGEOANALYSIS 90, an international symposium on the analysis of geological materials; by Hall, G E M (ed.); Geological Survey of Canada, Bulletin 451, 1993 p. 46-47, (Open Access)
PublisherNatural Resources Canada
MeetingGEOANALYSIS 90; Huntsville, Ontario; CA; June 3-7 1990
Mediapaper; on-line; digital
RelatedThis publication is contained in Hall, G E M; (1993). GEOANALYSIS 90, an international symposium on the analysis of geological materials, Geological Survey of Canada, Bulletin no. 451
File formatpdf
Subjectsgeochemistry; environmental geology; analytical methods; aluminum geochemistry; acid rain; water analyses; water wells
Released1994 01 01
AbstractAn on-site procedure involving filtration and ion exchange has been developed to study aluminium speciation in water samples from shallow wells. Immediately following collection samples are mixed continuously with Chelex 100 ion-exchange resin for eight hours. At intervals during the mixing cycle subsamples of the water are taken, filtered, preserved, and later analyzed for aluminium by graphite furnace atomic absorption spectrophotometry. The method has been applied to examine aluminium chemistry in water from selected shallow wells in rural areas of eastern Canada exposed to acid rain. Results show that in weakly acid water much of the aluminium remains in polymeric forms whereas more strongly acid (pH below 5.5) well waters contain predominantly monomeric, labile aluminium.