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| Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1002/ps.2780450104/epdf
Last checked: 10/07/2015
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| Publication Type:
| Refereed |
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| Author(s): | Helling, Charles S.;
Doherty, Michael A. |
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| Author Affiliation: | US Dept. Agriculture, Agricultural Research Science, Weed Science Laboratory, Beltsville, MD |
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| Title: | Improved method for the analysis of imazapyr in soil |
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| Source: | Pesticide Science. Vol. 45, No. 1, September 1995, p. 21-26. |
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| Publishing Information: | London : Society of Chemical Industry |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Imazapyr; Soil analysis; pH; Herbicide residues; Tropical soils; Temperate soils
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| Abstract/Contents: | "A method for the analysis of imazapyr [2-(4-isopropyl-4- methyl-5-oxo-2-imidazolin-2-yl)nicotinic acid] residues in tropical and temperate soils was developed. Imazapyr residues, extracted from soil with ammonium hydrogen carbonate and cleaned-up by centrifuging, anion-exchange solid-phase extraction(SPE), pH adjustment, and CĀ¹āø SPE, were determined by HPLC. Recoveries from soils from Hawaii(Halii sandy clay loam), Texas(Houston Black clay), and Maryland(Codorus loam), USA, fortified with imazapyr (O-5 Ļ
g gāā soil) and equilibrated for 12-18 h, were 99(Ā±3)%, 104(Ā±4)%, and 89(Ā±2)%, respectively. Recoveries were independent of fortification level, but dependent upon soil type. Methods previously described in the literature produced imazapyr recoveries of less than 60% with Halii soil. This improved method has a limit of detection of 5 ng gāā (equivalent to or better than other methods) and affords higher recovery of imazapyr residues from tropical soil." |
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| Language: | English |
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| References: | 15 |
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| Note: | "Presented in part at the 8th International Congress of Pesticide Chemistry (IUPAC), Washington DC, USA, 4-9 July, 1994"
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Helling, C. S., and M. A. Doherty. 1995. Improved method for the analysis of imazapyr in soil. Pest Manage. Sci. 45(1):p. 21-26. |
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| Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1002/ps.2780450104/epdf
Last checked: 10/07/2015
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Access conditions: Item is within a limited-acess website |
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MSU catalog number: SB 951 .A1 P45 |
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