An Evaluation of the Use of Cation-Exchange Resin for the Determination of Organically-Complexed Al in Natural Acid Waters
- 1 June 1987
- journal article
- research article
- Published by Informa UK Limited in International Journal of Environmental Analytical Chemistry
- Vol. 30 (1), 135-143
- https://doi.org/10.1080/03067318708075461
Abstract
The estimation of organically-complexed monomeric Al (Alorg) using the cation-exchange method developed by Driscoll was evaluated by comparison with equilibrium-dialysis measurements on solutions containing Al and isolated aquatic humic substances at pH 4–5.3. The cation-exchange method underestimates [Alorg] by up to 25%, the extent of the discrepancy increasing with v (mol Al bound/g humic substances). An empirical equation that allows the correction of [Alorg] estimated by cation-exchange is given.Keywords
This publication has 9 references indexed in Scilit:
- Aluminium complexation by an aquatic humic fraction under acidic conditionsWater Research, 1987
- Relative Importance of Anthropogenic versus Natural Sources of Acidity in Lakes and Streams of Central OntarioCanadian Journal of Fisheries and Aquatic Sciences, 1984
- Aluminium speciation: comparison of two spectrophotometric analytical methods and observed concentrations in some acidic aquatic systems in Southern NorwayWater, Air, & Soil Pollution, 1984
- A Procedure for the Fractionation of Aqueous Aluminum in Dilute Acidic WatersInternational Journal of Environmental Analytical Chemistry, 1984
- ‘Acid rain’, dissolved aluminum and chemical weathering at the Hubbard Brook Experimental Forest, New HampshireGeochimica et Cosmochimica Acta, 1981
- Preparative isolation of aquatic humic substancesEnvironmental Science & Technology, 1981
- Effect of aluminium speciation on fish in dilute acidified watersNature, 1980
- The analytical concentration of humic substances from natural watersAnalytica Chimica Acta, 1975
- The absorptiometric determination of aluminium in water. A comparison of some chromogenic reagents and the development of an improved methodThe Analyst, 1974