CAJ | 학술논문

采用二氯甲烷萃取稻田水样品，土壤样品用丙酮－二氯甲烷（体积比为9∶1）混合溶液提取，二氯甲烷萃取，水稻植株样品用乙腈－二氯甲烷（体积比为9∶1）混合溶液直接萃取，用气相色谱法同时测定样品中稻瘟酰胺和咪鲜胺残留。该方法在0．0122 mg ／L ～2．68 mg ／L 范围内线性良好，稻田土壤、田水、水稻植株中稻瘟酰胺的检出限分别为2．75μg ／kg、1．83μg ／L、3．80μg ／kg，咪鲜胺的检出限分别为3．55μg ／kg、2．66μg ／L、5．62μg ／kg。空白稻田土壤、稻田水和水稻植株样品3个浓度水平的加标回收率为80．3％～104％，RSD 为3．0％～13．2％。
채용이록갑완췌취도전수양품，토양양품용병동－이록갑완（체적비위9∶1）혼합용액제취，이록갑완췌취，수도식주양품용을정－이록갑완（체적비위9∶1）혼합용액직접췌취，용기상색보법동시측정양품중도온선알화미선알잔류。해방법재0．0122 mg ／L ～2．68 mg ／L 범위내선성량호，도전토양、전수、수도식주중도온선알적검출한분별위2．75μg ／kg、1．83μg ／L、3．80μg ／kg，미선알적검출한분별위3．55μg ／kg、2．66μg ／L、5．62μg ／kg。공백도전토양、도전수화수도식주양품3개농도수평적가표회수솔위80．3％～104％，RSD 위3．0％～13．2％。
Fenoxanil and prochloraz residue in paddy field (soil,water and rice plant)were determined simultaneously by gas chromatography.The residues in the paddy-field water,paddy-field soil,and rice plants were extracted with methylene chloride,acetone-methylene chloride(volume ratio is 9∶1 ),and acetonitrile-meth-ylene chloride(volume ratio is 9∶1 )respectively.The results showed that the linearity was favorable in a range between 0.012 2 mg /L ~2.68 mg /L,the detection limits of fenoxanil in paddy-field soil,paddy-field water and paddy rice were 2.75 μg /kg、1 .83 μg /L、3.80 μg /kg,and the detection limits of prochloraz were 3.55 μg /kg、2.66 μg /L、5.62 μg /kg.The spiked recovery test of three concentration levels were done in paddy-field soil, paddy-field water and paddy rice,the recovery rate ranged from 80.3% ~104%,RSD ranged from 3.0% ~13.2%.