中国烟草科学
中國煙草科學
중국연초과학
CHINESE TOBACCO SCIENCE
2013年
5期
95-99
,共5页
丁春霞%龚道新%肖浩%任颖俊%杨丽华
丁春霞%龔道新%肖浩%任穎俊%楊麗華
정춘하%공도신%초호%임영준%양려화
高效氟吡甲禾灵%精吡氟禾草灵%精喹禾灵%高效液相色谱%残留
高效氟吡甲禾靈%精吡氟禾草靈%精喹禾靈%高效液相色譜%殘留
고효불필갑화령%정필불화초령%정규화령%고효액상색보%잔류
haloxyfop-p-methyl%fluazifop-p-butyl%quizafop-p-ethyl%high performance liquid chromatography%residue
为了评价植烟土壤中常用3种除草剂对生态环境的安全性,建立了同时测定植烟土壤和水中高效氟吡甲禾灵、精吡氟禾草灵和精喹禾灵3种除草剂残留量的高效液相色谱分析方法。水中3种农药残留用二氯甲烷-丙酮(20:1,v:v)混合液提取,土壤中农药残留用丙酮提取,经弗罗里硅土净化后,采用HPLC法外标法定量。结果表明,3种除草剂在0.0050~5.0 mg/L范围内线性良好,相关系数均在0.99以上;土壤中添加水平在0.050~1.0 mg/kg时,3种除草剂在土壤中平均添加回收率为77.5%~110.3%,相对偏差为1.6%~10.2%,当水中添加水平在0.0050~1.0 mg/L时,回收率为88.9%~101.2%,相对偏差为0.9%~8.2%,符合农药残留分析方法要求。
為瞭評價植煙土壤中常用3種除草劑對生態環境的安全性,建立瞭同時測定植煙土壤和水中高效氟吡甲禾靈、精吡氟禾草靈和精喹禾靈3種除草劑殘留量的高效液相色譜分析方法。水中3種農藥殘留用二氯甲烷-丙酮(20:1,v:v)混閤液提取,土壤中農藥殘留用丙酮提取,經弗囉裏硅土淨化後,採用HPLC法外標法定量。結果錶明,3種除草劑在0.0050~5.0 mg/L範圍內線性良好,相關繫數均在0.99以上;土壤中添加水平在0.050~1.0 mg/kg時,3種除草劑在土壤中平均添加迴收率為77.5%~110.3%,相對偏差為1.6%~10.2%,噹水中添加水平在0.0050~1.0 mg/L時,迴收率為88.9%~101.2%,相對偏差為0.9%~8.2%,符閤農藥殘留分析方法要求。
위료평개식연토양중상용3충제초제대생태배경적안전성,건립료동시측정식연토양화수중고효불필갑화령、정필불화초령화정규화령3충제초제잔류량적고효액상색보분석방법。수중3충농약잔류용이록갑완-병동(20:1,v:v)혼합액제취,토양중농약잔류용병동제취,경불라리규토정화후,채용HPLC법외표법정량。결과표명,3충제초제재0.0050~5.0 mg/L범위내선성량호,상관계수균재0.99이상;토양중첨가수평재0.050~1.0 mg/kg시,3충제초제재토양중평균첨가회수솔위77.5%~110.3%,상대편차위1.6%~10.2%,당수중첨가수평재0.0050~1.0 mg/L시,회수솔위88.9%~101.2%,상대편차위0.9%~8.2%,부합농약잔류분석방법요구。
In order to evaluate the bio-environmental safety of three kinds of herbicides, which were often applied to tobacco soil, an analytical method was established to simultaneously determine the residues of haloxyfop-p-methyl, fluazifop-p-butyl and quizafop-p-ethyl in soil and water in tobacco planting field by high performance liquid chromatography. The residues in water was extracted with mixed solution of methylene chloride-acetone (20:1, v:v). The soil was extracted with acetone and the extract was cleaned up by a Florisil chromatography column. The quantification was performed by external standard. The linearity was satisfied (r>0.99) in concentration range of 0.0050-5.0 mg/L. The average recoveries of this three herbicides varied from 77.5%to 110.3%with relative standard deviation of 1.6%-10.2%, when three kinds of herbicides were spiked at 0.050-1.0 mg/kg level in soil. The average recoveries of the three herbicides varied from 88.9%to 101.2%, with relative standard deviation of 0.9%-8.2%, when three kinds of herbicides were spiked at 0.0050-1.0 mg/L level in water. The method in this study could meet the requirements of pesticide residue analysis criteria.