食品安全质量检测学报
食品安全質量檢測學報
식품안전질량검측학보
FOOD SAFETY AND QUALITY DETECTION TECHNOLOGY
2014年
3期
921-924
,共4页
史少然%赵建庄%范双喜%吴昆明%贾临芳%梁丹
史少然%趙建莊%範雙喜%吳昆明%賈臨芳%樑丹
사소연%조건장%범쌍희%오곤명%가림방%량단
高效氯氰菊酯%生菜%气相色谱法%优化
高效氯氰菊酯%生菜%氣相色譜法%優化
고효록청국지%생채%기상색보법%우화
cypermethrin%lettuce%gas chromatography%optimization
目的:建立生菜中高效氯氰菊酯农残分析方法。方法采用乙腈提取生菜中的高效氯氰菊酯,用Agilent弗罗里硅柱、NH2柱和C18柱固相萃取柱分别对样品进行净化,利用毛细管柱气相色谱法作为检测手段, GC-ECD 进行定性分析。结果高效氯氰菊酯经过弗罗里硅柱的回收率在91.21%~102.78%,变异系数是0.63%~3.57%,最低检出限为0.001 mg·kg-1。结论高效氯氰菊酯顺式体氯氰菊酯和反式体氯氰菊酯2:3的双峰分离较好,操作简单,灵敏度高,添加回收率理想,可用于生菜中高效氯氰菊酯的残留检测分析。
目的:建立生菜中高效氯氰菊酯農殘分析方法。方法採用乙腈提取生菜中的高效氯氰菊酯,用Agilent弗囉裏硅柱、NH2柱和C18柱固相萃取柱分彆對樣品進行淨化,利用毛細管柱氣相色譜法作為檢測手段, GC-ECD 進行定性分析。結果高效氯氰菊酯經過弗囉裏硅柱的迴收率在91.21%~102.78%,變異繫數是0.63%~3.57%,最低檢齣限為0.001 mg·kg-1。結論高效氯氰菊酯順式體氯氰菊酯和反式體氯氰菊酯2:3的雙峰分離較好,操作簡單,靈敏度高,添加迴收率理想,可用于生菜中高效氯氰菊酯的殘留檢測分析。
목적:건립생채중고효록청국지농잔분석방법。방법채용을정제취생채중적고효록청국지,용Agilent불라리규주、NH2주화C18주고상췌취주분별대양품진행정화,이용모세관주기상색보법작위검측수단, GC-ECD 진행정성분석。결과고효록청국지경과불라리규주적회수솔재91.21%~102.78%,변이계수시0.63%~3.57%,최저검출한위0.001 mg·kg-1。결론고효록청국지순식체록청국지화반식체록청국지2:3적쌍봉분리교호,조작간단,령민도고,첨가회수솔이상,가용우생채중고효록청국지적잔류검측분석。
Objective To establish a method for determination of cypermethrin pesticide in lettuce. Methods Samples were extracted with acetonitrile, purified by Agilent SPE, Florisil column, NH2 column and C18 column, respectively, and detected by capillary column gas chromatography with ECD as detector. Results Recoveries of cypermethrin were 91.21%~102.78% with coefficient of variation of 0.63%~3.57%. The lowest detection limit was 0.001 mg·kg-1. Conclusion The method is simple, sensitive, accurate and re-producible, and the separation of cypermethrin cis-cypermethrin and trans-cypermethrin 2:3 bimodal peak is very satisfactory. This method can be used to detect residues of cypermethrin in lettuce.