1) differential extraction
微分萃取
2) dispersive liquid-liquid microextraction
分散液相微萃取
1.
Dispersive liquid-liquid microextraction(DLLME)is a novel environmentally benign sample-preparation technique,possessing obvious advantages of simplicity of operation,low-cost,high enrichment factor and low consumption of organic solvent.
分散液相微萃取是最近发展起来的一种新型样品前处理技术,该方法操作简单、成本低、富集效率高、所需有机溶剂用量极少,是一种环境友好的液相微萃取新技术。
2.
A novel method was developed for the determination of chlorothalonil,captan and folpet in grape samples by dispersive liquid-liquid microextraction(DLLME) coupled with gas chromatography-electron capture detection(GC-ECD).
采用分散液相微萃取与气相色谱-电子捕获检测联用技术建立了测定葡萄样品中百菌清、克菌丹和灭菌丹农药残留的新方法。
3) Dispersive liquid-liquid microextraction
分散液-液微萃取
1.
Determination of trichlorobenzenes in water-based cutting fluids and wastewater of machining using dispersive liquid-liquid microextraction-gas chromatography/mass spectrometry
分散液-液微萃取-气相色谱/质谱联用法测定机械加工水基切削液及其废水中的三氯苯
2.
A simple,rapid and effective method,the dispersive liquid-liquid microextraction coupled with high performance liquid chromatography-fluorescence detection(DLLME-HPLC-FLD),has been developed for the extraction and determination of polynuclear aromatic hydrocarbons(PAHs) in environmental water samples.
建立了简便、快速、有效的分散液-液微萃取-高效液相色谱-荧光检测(DLLME-HPLC-FLD)测定环境水样中15种多环芳烃(PAHs)的方法。
4) dispersive liquid-liquid microextraction
分散液液微萃取
1.
Determination of trace vanadium in water samples with dispersive liquid-liquid microextraction(DLLME)-digital colorimetry(DC) was investigated.
研究了分散液液微萃取-数码比色法测定水样中的痕量钒。
5) dispersive liquid phase microextraction
分散液相微萃取
1.
In this article,the basic principles and the latest applications of two liquid phase microextraction techniques,liquid phase microextraction based on porous hollow fiber and dispersive liquid phase microextraction are introduced.
液相微萃取是近年发展起来的一种新型样品前处理技术,本文简单介绍了两种液相微萃取技术-多孔中空纤维液相微萃取和分散液相微萃取的基本原理和应用。
6) microwave-assisted extraction
微波萃取
1.
Effect of surfactant on microwave-assisted extraction of baicalin;
表面活性剂对黄芩苷微波萃取的影响
2.
Three methods of microwave-assisted extraction of aesculin and aesculetin from the ash bark;
三种微波萃取秦皮中秦皮甲素和秦皮乙素的方法
补充资料:微分萃取
分子式:
CAS号:
性质:在柱式萃取器内进行的一种萃取。简单的萃取柱即一垂直空筒,为了提高传质效果,可在筒内放入各种内部构件,如在筒内放置填料、转盘、搅拌器、脉冲加装置等。操作时,令轻液自柱底进入,重液则自柱顶加入;通常,一种液体为分散相,另一液体为连续相。若以重液为分散相,轻液为连续相时,重液以细小的液滴,分散在连续的轻液内,并缓缓地往下沉降,溶质便在此时发生传递。当然,也可以重液为连续相,轻液为分散相。能否进行微分萃取,取决于轻、重两相液体的密度差,若密度差很大,两相流体的逆向流动非常容易,易于微分萃取;反之,若密度差很小,则此过程就很难进行,甚至不宜采用微分萃取。
CAS号:
性质:在柱式萃取器内进行的一种萃取。简单的萃取柱即一垂直空筒,为了提高传质效果,可在筒内放入各种内部构件,如在筒内放置填料、转盘、搅拌器、脉冲加装置等。操作时,令轻液自柱底进入,重液则自柱顶加入;通常,一种液体为分散相,另一液体为连续相。若以重液为分散相,轻液为连续相时,重液以细小的液滴,分散在连续的轻液内,并缓缓地往下沉降,溶质便在此时发生传递。当然,也可以重液为连续相,轻液为分散相。能否进行微分萃取,取决于轻、重两相液体的密度差,若密度差很大,两相流体的逆向流动非常容易,易于微分萃取;反之,若密度差很小,则此过程就很难进行,甚至不宜采用微分萃取。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条