Improved extraction and clean-up of imidazolinone herbicides from soil solutions using different solid-phase sorbents

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dc.contributor.authorRamezani, M.
dc.contributor.authorSimpson, N.
dc.contributor.authorOliver, D.
dc.contributor.authorKookana, R.
dc.contributor.authorGill, G.
dc.contributor.authorPreston, C.
dc.date.issued2009
dc.description.abstractExtraction and quantification of herbicide residues from soil are important in understanding the behaviour of persistent herbicides. This research investigated extraction and clean-up methods for imidazolinone herbicides from soil and soil amended with organic material. A series of solvent mixes, pH conditions and sorbents was tested. Across three imidazolinone herbicides: imazapyr, imazethapyr and imazaquin, 0.5M NaOH extraction gave greater than 90% recovery from soil samples; however, 0.5M NaOH:MeOH (80:20) resulted in higher recovery for imazaquin, but not for the other two herbicides. Of the sorbents tested, the use of chromatographic mode sequencing using C(18) and SCX sorbents provided consistent high (>85%) recovery of all three herbicides from soil and separation of the herbicides from other soil components by high performance liquid chromatography (HPLC). These two methods will allow high recovery of these imidazolinone herbicides from soil and have the ability to detect these herbicides without interference from other soil components.
dc.description.statementofresponsibilityMohammadkazem Ramezani, Nigel Simpson, Danielle Oliver, Rai Kookana, Gurjeet Gill, Christopher Preston
dc.identifier.citationJournal of Chromatography A, 2009; 1216(26):5092-5100
dc.identifier.doi10.1016/j.chroma.2009.04.080
dc.identifier.issn0021-9673
dc.identifier.issn1873-3778
dc.identifier.orcidKookana, R. [0000-0002-0477-3284]
dc.identifier.orcidGill, G. [0000-0002-3773-8100]
dc.identifier.orcidPreston, C. [0000-0002-7588-124X]
dc.identifier.urihttp://hdl.handle.net/2440/51236
dc.language.isoen
dc.publisherElsevier Science BV
dc.source.urihttps://doi.org/10.1016/j.chroma.2009.04.080
dc.subjectSolid-phase extraction
dc.subjectImidazolinone herbicides
dc.subjectSoil extraction solutions
dc.subjectEnantiomer soil extraction
dc.titleImproved extraction and clean-up of imidazolinone herbicides from soil solutions using different solid-phase sorbents
dc.typeJournal article
pubs.publication-statusPublished

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