By Gunnar Persson, Mats Jansson
Court cases of a symposium held in Uppsala, Sweden, September 25-28, 1985
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Additional info for Phosphorus in Freshwater Ecosystems: Proceedings of a Symposium held in Uppsala, Sweden, 25–28 September 1985
Phosphorus removal from wastewater applied to land. Hilgardia 48: 1-36. Sample, E. , R. J. Soper & G. J. Racz, 1980. Reactions of phosphate fertilizers in soils. In F. E. Khasawneh, E. C. Sample & E. J. ). The role of phosphorus i agriculture. Am. Soc. Agronomy, Crop Sci. Soc. , Soil Sci. Soc. , Madison, Wisconsin: 263-310. Schindler, D. W. & J. E. Nighswander, 1970. Nutrient supply and primary production in Clear Lake, eastern Ontario. J. Fish. Res. Bd Can. 27: 2009-2036. Schindler, D. , R. W.
Carlisle, E. J. White & c. C. Evans, 1968. The plant nutrient content of rainwater. 1. Eco!. 56: 497-504. Barica,1. & F. A. 1. Armstrong, 1971. Contribution by snow to the nutrient budget of some small Northwest Ontario lakes. Limno!. Oceanogr. 16: 891-899. Brezonik, P. , W. H. Morgan, E. E. Shannon & H. D. Putnam, 1969. Eutrophication factors in north central Florida lakes. Univ. Fla. Eng. Ind. Exper. Sta. Bul!. Ser. 133: 101. Broberg, O. & G. Persson, 1988. Particulate and dissolved phosphorus forms in freshwater - composition and analysis.
Springer-Verlag. NY: 250 pp. Wolman, M. , 1967. Two problems involving river channel changes and background observations. In Quantitative geography Part II, Physical and cartographic topics. Northwestern university studies in geography 14: 67-107. Vollenweider, R. , 1968. Scientific fundamentals of the eutrophication oflakes and flowing waters, with particular reference to nitrogen and phosphorus as factors in eutrophication. 27. Paris, 159 pp. Hydrobiologia 170: 45-59 (1988) G. Persson and M. Jansson (eds) Phosphorus in Freshwater Ecosystems © Kluwer Academic Publishers 45 Analytical determination of orthophosphate in water Ola Broberg & Kurt Pettersson Department of Limnology, Uppsala University, Box 557, S-751 22 Uppsala, Sweden Key words: orthophosphate, determination, methods, interferences, molybdate, enzymatic Abstract Methods for orthophosphate determination and the problems of interferences are reviewed.