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Web URL(s): | http://www.tandfonline.com/doi/pdf/10.1081/CSS-120000974 Last checked: 10/13/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| 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. |
Publishing Information: | New York, NY: Marcel Dekker |
# of Pages: | 12 |
Keywords: | TIC Keywords: Methodology; Extraction; Acifluorfen; Soils; Pesticide fate; EDTA; Pesticide degradation; Acids; Bases
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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): Gatson, L. A., and M. A. Locke. 2001. Comparison of methodologies for extraction of acifluorfen from soil. Commun. Soil. Sci. Plant Anal. 32(17/18):p. 2953-2964. |
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| Web URL(s): http://www.tandfonline.com/doi/pdf/10.1081/CSS-120000974 Last checked: 10/13/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: S 590 .C54 |
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