Results 161 to 170 of about 841 (186)
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Method Development for Determination of Fluroxypyr in Soil
Journal of Environmental Science and Health, Part B- Pesticides, Food Contaminants, and Agricultural Wastes, 2004Four methods were developed for the analysis of fluroxypyr in soil samples from oil palm plantations. The first method involved the extraction of the herbicide with 0.05 M NaOH in methanol followed by purification using acid base partition. The concentrated material was subjected to derivatization and then cleaning process using a florisil column and ...
M, Halimah, Y A, Tan, B S, Ismail
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Weed Research, 1991
Summary:Fluroxypyr‐MHE (methylheptyl ester) was applied to small field plots containing Londo sandy loam soil. After 30 days, fluroxypyr had degraded to about 60% of the initial concentration, but was still the main component, while after 120 and 366 days the methoxypyridine metabolite was the main component in the soil.
R. G. LEHMANN +4 more
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Summary:Fluroxypyr‐MHE (methylheptyl ester) was applied to small field plots containing Londo sandy loam soil. After 30 days, fluroxypyr had degraded to about 60% of the initial concentration, but was still the main component, while after 120 and 366 days the methoxypyridine metabolite was the main component in the soil.
R. G. LEHMANN +4 more
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Conclusion on the peer review of the pesticide risk assessment of the active substance fluroxypyr (evaluated variant fluroxypyr‐meptyl) [PDF]
EFSA Journal, 2011 exaly +2 more sources
Weed Research, 1993
Summary: Résumé: ZusammenfassungDissipation of fluroxypyr in North Dakota lake waters was examined in three laboratory studies: photolysis, aerobic metabolism, and anaerobic metabolism. Photolysis was negligible in sterilized water, with and without natural photosensitizers.
R. G. LEHMANN +2 more
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Summary: Résumé: ZusammenfassungDissipation of fluroxypyr in North Dakota lake waters was examined in three laboratory studies: photolysis, aerobic metabolism, and anaerobic metabolism. Photolysis was negligible in sterilized water, with and without natural photosensitizers.
R. G. LEHMANN +2 more
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Basis for the selective action of fluroxypyr
Weed Research, 1994Summary: Résumé: ZusammenfassungThe dose‐response, foliar uptake, translocation and metabolism of the methylheptyl ester (MHE) of fluroxypyr were examined in lambs‐quarters (Chenopodium album L.), wild buckwheat (Polygonum convolvulus L.), Canada thistle (Cirsium arvense L. Scop.) and field bindweed (Convolvulus arvensis L.).
R. L. MACDONALD +2 more
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Drug Metabolism and Disposition, 2000
Percutaneous absorption of pesticides is a major determinant for risk assessment. Furthermore, cutaneous metabolism plays a role in penetration of certain chemicals. Therefore, the aim of these studies was to determine the transdermal metabolism of three related compounds [the herbicide, fluroxypyr methylheptyl ester (FPMH), fluroxypyr methyl ester ...
P G, Hewitt, J, Perkins, S A, Hotchkiss
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Percutaneous absorption of pesticides is a major determinant for risk assessment. Furthermore, cutaneous metabolism plays a role in penetration of certain chemicals. Therefore, the aim of these studies was to determine the transdermal metabolism of three related compounds [the herbicide, fluroxypyr methylheptyl ester (FPMH), fluroxypyr methyl ester ...
P G, Hewitt, J, Perkins, S A, Hotchkiss
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Determination of the herbicide fluroxypyr in oil matrices
Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, 2008The purpose of this study was to develop a method for the determination of fluroxypyr (4-amino-3,5-dichloro-6-fluro2-pyridyloxyacetic acid) residue in palm oil namely crude palm oil (CPO) and crude palm kernel oil (CPKO). The method involves the extraction of the herbicide from the oil matrix followed by low temperature precipitation and finally ...
Halimah B, Muhamad +2 more
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Photocatalytic degradation of herbicide fluroxypyr in aqueous suspension of TiO2
Catalysis Today, 2005Abstract The photocatalytic degradation of fluroxypyr (FLX) was studied using Degussa P-25 Titania as a catalyst. The disappearance of FLX was proved to follow a half-order kinetics. This implies that two active sites are involved in the adsorption of one molecule of fluroxypyr.
M A Aramendia +2 more
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Stereoselective metabolism of the herbicide fluroxypyr methylheptyl ester in rabbits
Chirality, 2011AbstractWe investigated the stereoselective degradation kinetics of fluroxypyr methylheptyl ester (FPMH) in rabbits using a chiral high‐performance liquid chromatographic method. In 20% rabbit plasma, the half lives of (+)‐FPMH and (−)‐FPMH were 2.5 and 10.9 min, respectively.
Xinyuan Xu +2 more
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The Analysis for Fluroxypyr Ester by Liquid Chromatography
Advanced Materials Research, 2014The analysis method for fluroxypyr ester by high performance liquid chromatography (HPLC) is established in this paper. This method is based on the chemical and physical properties of fluroxypyr ester to optimize determination conditions such as the sample solvent, mobile phase and chromatographic column and detection wavelength.
Ze Li Chen, Hua Jing Zhu
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