PMID: 11929294Apr 4, 2002Paper

Subcritical water extraction to evaluate desorption behavior of organic pesticides in soil

Journal of Agricultural and Food Chemistry
Lívia N KondaGyörgy Morovján

Abstract

We evaluated the feasibility of extracting organic pesticides in soil using a hot-water percolation apparatus at 105 degrees C and 120 kPa pressure. Efficiency of the method was assessed by extracting six selected pesticides (acetochlor, atrazine, diazinon, carbendazim, imidacloprid, and isoproturon) from previously equilibrated soil at 13.6-65.8 mg/kg concentration range. Studies were performed on brown forest soil with clay alluviation (Luvisol). The method developed was compared to the traditional batch equilibrium method in terms of desorbed amount of pesticides from soil and extraction time. Pesticides in the liquid phase from the batch sorption experiment and in the effluent from the hot-water percolation were quantified by high-performance liquid chromatography with UV detection. The results of the percolation experiment are in close correlation with those of the conventional soil testing method. Desorbed quantities by hot-water percolation were 85% acetochlor, 62% atrazine, 65% carbendazim, 44% diazinon, 95% imidacloprid, and 84% isoproturon, whereas using batch equilibrium method 101, 66, 64, 37, 81, and 90% were desorbed, expressed as the percentage of the adsorbed amount of pesticide on soil following equilibration. ...Continue Reading

References

Nov 1, 1989·Environmental Health Perspectives·R Calvet
Dec 31, 1997·Journal of Chromatography. a·M M Jiménez-CarmonaM D Luque de Castro
Sep 11, 1998·Archives of Environmental Contamination and Toxicology·D W KolpinS M Linhart
Apr 1, 1983·Environmental Science & Technology·C T ChiouD W Schmedding

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Citations

Jan 12, 2010·Journal of Chromatography. a·Chin Chye TeoEng Shi Ong
Sep 1, 2004·Journal of Separation Science·Cecilia Sparr EskilssonMarja-Liisa Riekkola
Apr 24, 2003·Journal of Environmental Quality·Grant L Northcott, Kevin C Jones
Apr 20, 2021·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Takashi YaritaHiroko Tada

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