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Development of methods for multiresidue analysis of rice post-emergence herbicides in loam soil and their possible applications to soils of different composition.
J AOAC Int. 2010 Mar-Apr; 93(2):425-31.JA

Abstract

Two simple and straightforward sample preparation methods were developed for the multiresidue analysis of post-emergence herbicides in loam soil that are commonly used in rice crop cultivation. A number of strategic soil extraction and cleanup methods were evaluated. The instrumental analysis was performed by HPLC with a diode array detector. The best compromise between the recoveries (69-98%) and good repeatability (RSD < 15%) was obtained using either methanol or methanol-ethyl acetate (70 + 30, v/v) as extraction solvents without any further cleanup. For the first time, residues of metsulfuron methyl, bensulfuron ethyl, bentazone, cyhalofop butyl, pyrazosulfuron ethyl, propanil, and clomazone were analyzed simultaneously. Quinclorac and bispyribac sodium were also assayed, but their recoveries were below 50%. Both methods had an LOD of 0.7 microg/kg and could accurately determine the residues at the 2 microg/kg level. These two methods could not be applied directly to other soil types as the recoveries strongly depended on the soil composition. The developed methodologies were successfully applied in monitoring 87 real-world soil samples, in which only propanil (6 to 12 microg/kg) and clomazone (15 to 20 microg/kg) residues could be detected.

Authors

Niell S
No affiliation info available
Pareja L
No affiliation info available
Asteggiante LG
No affiliation info available
Roehrs R
No affiliation info available
Pizzutti IR
No affiliation info available
García C
No affiliation info available
Heinzen H
No affiliation info available
Cesio MV
No affiliation info available

MeSH

AcetatesBenzoatesChemistry Techniques, AnalyticalChromatography, High Pressure LiquidCrops, AgriculturalFood AnalysisHerbicidesHydrogen-Ion ConcentrationMethanolOryzaPesticide ResiduesPyrimidinesQuinolinesReproducibility of ResultsSoil

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20480886

Citation

Niell, Silvina, et al. "Development of Methods for Multiresidue Analysis of Rice Post-emergence Herbicides in Loam Soil and Their Possible Applications to Soils of Different Composition." Journal of AOAC International, vol. 93, no. 2, 2010, pp. 425-31.
Niell S, Pareja L, Asteggiante LG, et al. Development of methods for multiresidue analysis of rice post-emergence herbicides in loam soil and their possible applications to soils of different composition. J AOAC Int. 2010;93(2):425-31.
Niell, S., Pareja, L., Asteggiante, L. G., Roehrs, R., Pizzutti, I. R., García, C., Heinzen, H., & Cesio, M. V. (2010). Development of methods for multiresidue analysis of rice post-emergence herbicides in loam soil and their possible applications to soils of different composition. Journal of AOAC International, 93(2), 425-31.
Niell S, et al. Development of Methods for Multiresidue Analysis of Rice Post-emergence Herbicides in Loam Soil and Their Possible Applications to Soils of Different Composition. J AOAC Int. 2010 Mar-Apr;93(2):425-31. PubMed PMID: 20480886.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Development of methods for multiresidue analysis of rice post-emergence herbicides in loam soil and their possible applications to soils of different composition. AU - Niell,Silvina, AU - Pareja,Lucia, AU - Asteggiante,Lucía Geis, AU - Roehrs,Rafael, AU - Pizzutti,Ionara R, AU - García,Claudio, AU - Heinzen,Horacio, AU - Cesio,María Verónica, PY - 2010/5/20/entrez PY - 2010/5/20/pubmed PY - 2010/6/15/medline SP - 425 EP - 31 JF - Journal of AOAC International JO - J AOAC Int VL - 93 IS - 2 N2 - Two simple and straightforward sample preparation methods were developed for the multiresidue analysis of post-emergence herbicides in loam soil that are commonly used in rice crop cultivation. A number of strategic soil extraction and cleanup methods were evaluated. The instrumental analysis was performed by HPLC with a diode array detector. The best compromise between the recoveries (69-98%) and good repeatability (RSD < 15%) was obtained using either methanol or methanol-ethyl acetate (70 + 30, v/v) as extraction solvents without any further cleanup. For the first time, residues of metsulfuron methyl, bensulfuron ethyl, bentazone, cyhalofop butyl, pyrazosulfuron ethyl, propanil, and clomazone were analyzed simultaneously. Quinclorac and bispyribac sodium were also assayed, but their recoveries were below 50%. Both methods had an LOD of 0.7 microg/kg and could accurately determine the residues at the 2 microg/kg level. These two methods could not be applied directly to other soil types as the recoveries strongly depended on the soil composition. The developed methodologies were successfully applied in monitoring 87 real-world soil samples, in which only propanil (6 to 12 microg/kg) and clomazone (15 to 20 microg/kg) residues could be detected. SN - 1060-3271 UR - https://www.unboundmedicine.com/medline/citation/20480886/Development_of_methods_for_multiresidue_analysis_of_rice_post_emergence_herbicides_in_loam_soil_and_their_possible_applications_to_soils_of_different_composition_ DB - PRIME DP - Unbound Medicine ER -