а天堂8中文最新版在线官网-а天堂中文在线官网-а天堂中文在线官网在线-а天堂中文官网-а天堂中文最新一区二区三区-一 级 黄 色 片免费网站

Developing microwave-assisted ionic liquid microextraction for the detection and tracking of hydrophobic pesticides in complex environmental matrices

2019-11-06 08:41:22 adman 51
文件格式 :
.pdf
立即下載

Developing microwave-assisted ionic liquid microextraction for the detection and tracking of hydrophobic pesticides in complex environmental matrices

Jing Wang,  Jian Xiong,   Gary A. Baker,   Renee D. JiJib  and  Sheila N. Baker

Abstract

In the present study, we have developed a novel dispersive liquid–liquid microextraction (DLLME) based on microwave-assisted DLLME (MADLLME) usingionic liquidsfor the separation of environmentally-relevant pyrethroidpesticidesfrom various aqueous milieux.High-performance liquid chromatography(HPLC) was employed for the detection and quantitative tracking of thepesticides. Six different ILs were preliminarily tested asextractionsolventsagainst four representative model pyrethroids. The optimization of the current method was derived by consideration of the dispersalsolvent,ionic liquidchoice,extractioncontainer material, aqueous-phase pH, and microwave conditions (particularly, the applied power and irradiation time). Optimal results were achieved usingmethanolas a dispersalsolventwith trioctylmethylammonium bis(trifluoromethylsulfonyl)imide ([N8881][Tf2N]) as the extractionsolventat a microwave power of 200 W for 60 s. A number of spikedfoodsamples (e.g., honey, milk, assorted fruits) were also tested using MADLLME, with excellent recoveries achieved from these complex matrices as compared to DLLME alone.

Graphical abstract: Developing microwave-assisted ionic liquid microextraction for the detection and tracking of hydrophobic pesticides in complex environmental matrices




標(biāo)簽:  離子液體 TFSI-ILs LiTFSI 農(nóng)藥殘留 
主站蜘蛛池模板: 国产一级电影网| 91社影院在线观看| 青草福利在线| ww国产内射精品后入国产| 日本黄色三级网站| 中文字幕无码免费久久| 成人无码www在线看免费| 波多野结衣在线观看网址| 无码高潮少妇毛多水多水免费 | 永久免费无码av网站在线观看| 国产爆乳成av人在线播放| 国产欧美一区二区三区在线看 | 天堂av无码大芭蕉伊人av孕妇| 国产精品国产a级| 国产成人免费高清激情明星| 亚洲a∨无码无在线观看| 久久视频在线免费观看| 欧美专区在线播放| 无码人妻一区二区中文| 精品视频 九九九| 日本欧美中文字幕人在线| 日本护士╳╳╳hd少妇| 日韩免费在线观看视频| www.99热| 成在线人免费| 久久久国产精品福利免费| 免费ā片在线观看| 成人性生交大片免费看96 | 人妻人人妻a乱人伦青椒视频| 久久精品天天中文字幕人| 国产精品极品美女在线观看免费| 激情内射日本一区二区三区 | 在线欧美中文字幕农村电影| 深夜久久| 日韩在线国产| 好爽好黄的视频| 色欲天天婬色婬香影院| 免费特级黄毛片| 成人午夜在线观看| 午夜伦理在线播放| 藏春阁福利视频|