Measurement of simazine residues in chickpeas,Cicer arietinum,by gas–liquid chromatography |
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Authors: | W J Allender |
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Abstract: | A method is described for the measurement of simazine 2-chloro-4,6-bis(ethylamino)-1,3,5-triazine] residues in chickpeas (Cicer arietinum). Ground chickpea samples were extracted with dichloromethane, followed by clean-up on alumina. Gas-liquid chromatography using metribuzin 4-amino- 6-tert-butyl-4,5-dihydro-3-methylthio-1,2,4-triazin-5-one] as internal standard with thermionic detection was used to quantify simazine residues. The limit of detection was 0.02 mg kg?1 and the recoveries of simazine from chickpea samples (0.1–4 mg kg-1) averaged 92%. |
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