Web URL(s): http://www.tandfonline.com/doi/pdf/10.1081/CSS-120000974 Publication Type:
i
Report Author(s): Gatson, Lewis A. ;
Locke, Martin A. Author Affiliation: Gatson: Department of Agronomy, Louisiana State University Agricultural Center, Baton Rouge, LA; Locke: USDA-ARS, Southern Weed Science Unit, Stoneville, MS Title: Comparison of methodologies for extraction of acifluorfen from soil Source: Communications in Soil Science and Plant Analysis . Vol. 32, No. 17/18, October 2001, p. 2953-2964.# of Pages: 12 Publishing Information: New York, NY: Marcel Dekker Keywords: TIC Keywords: Methodology ; Extraction ; Acifluorfen ; Soils ; Pesticide fate ; EDTA ; Pesticide degradation ; Acids ; Bases Abstract/Contents: "Efficient methods for extraction of pesticides from soil are necessary for environmental fate studies. This study examined efficiencies of methanol:water solvent systems for recovery of the herbicide acifluorfen [5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid] from soils of different properties. The applicability of supercritical fluid CO2 extraction (SFE) for recovery of acifluorfen was also examined. High recovery (>95%) was obtained over wide range of methanol (40 to 80%) to water compositions. Adding acid, base, EDTA or cation-exchange resin to a 80:20, methanol:water solution offered no improvement. However, EDTA or exchange resin gave slightly higher recoveries of acifluorfen and/or degradation products with incubated soil. Recovery of acifluorfen by SFE required addition of a modifier. Extraction efficiencies equal to the highest obtained with liquid extractions were possible using 40:60, methanol:1 N HCI as a modifier." Language: English References: 23 Note: Tables ASA/CSSA/SSSA Citation (Crop Science -Like - may be incomplete ): Commun. Soil. Sci. Plant Anal. 32(17/18):p. 2953-2964.Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=77223 If there are problems with this record, send us feedback about record 77223 . Choices for finding the above item : Web URL(s): http://www.tandfonline.com/doi/pdf/10.1081/CSS-120000974 S 590 .C54 Find from within TIC: Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)
