惠州学院学报
惠州學院學報
혜주학원학보
JOURNAL OF HUIZHOU UNIVERSITY
2012年
3期
54-57
,共4页
茶叶%有机磷%农药残留%气相色谱
茶葉%有機燐%農藥殘留%氣相色譜
다협%유궤린%농약잔류%기상색보
tea%organophosphorus%pesticide residue%gas chromatography
采用乙酸乙酯和丙酮混合液(1:1,v:v)提取,石墨化炭固相萃取柱净化方法,乙酸乙酯和丙酮混合液(1:1,v:v)浓缩定容,配有火焰光度检测器(FPD)的气相色谱仪同时测定茶叶中灭线磷、地虫硫磷、甲基硫环磷等农药残留,3种有机磷农药在DP-1701P色谱柱上得到很好的分离效果,添加回收率在85.5~108.5%,最小检出浓度为0.01~0.04mg·kg^(-1),可满足实际工作需要。
採用乙痠乙酯和丙酮混閤液(1:1,v:v)提取,石墨化炭固相萃取柱淨化方法,乙痠乙酯和丙酮混閤液(1:1,v:v)濃縮定容,配有火燄光度檢測器(FPD)的氣相色譜儀同時測定茶葉中滅線燐、地蟲硫燐、甲基硫環燐等農藥殘留,3種有機燐農藥在DP-1701P色譜柱上得到很好的分離效果,添加迴收率在85.5~108.5%,最小檢齣濃度為0.01~0.04mg·kg^(-1),可滿足實際工作需要。
채용을산을지화병동혼합액(1:1,v:v)제취,석묵화탄고상췌취주정화방법,을산을지화병동혼합액(1:1,v:v)농축정용,배유화염광도검측기(FPD)적기상색보의동시측정다협중멸선린、지충류린、갑기류배린등농약잔류,3충유궤린농약재DP-1701P색보주상득도흔호적분리효과,첨가회수솔재85.5~108.5%,최소검출농도위0.01~0.04mg·kg^(-1),가만족실제공작수요。
Using ethyl acetate and acetone mixture ( 1:1, V:V ) extraction, graphite carbon solid phase extraction column purification method, ethyl acetate and acetone mixture ( 1 :1 ,V:V ) concentration constant volume, equipped with a flame photometric detector ( FPD ) of gas chromatography for simultaneous determination of Ethoprophos,Fonofos,Posfolan- methyl in tea sample,3 organic phosphorus pesticides in the DP - 1701P column has good separation effect, added recovery rate was 85.5 - 108.5% ,the minimum detectable concentration is 0. 01 -0.04 mg / kg, can satisfy the needs of practical work.