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1)  liquid-liquid grading extraction
液-液分级萃取
2)  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。
3)  separation by liquid-liquid extraction
液-液萃取分离<冶>
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)  Liquid-Liquid Extraction
液-液萃取
1.
Separation of tert-pontanol and water mixture by means of combination of liquid-liquid extraction rectification;
用液-液萃取与精馏联合法分离叔戊醇-水共沸物
2.
The 11 organochlorine pesticides are determined by GC-ECD,and B(a)P is determined by HPLC-UV-FLD after sample pre-treatment by liquid-liquid extraction with n-hexane.
方法利用正己烷液-液萃取,以气相色谱法(电子捕获检测器)检测11种有机氯组分,高效液相色谱法(紫外、荧光检测器)检测苯并[a]芘。
3.
In order to investigate the effects of magnetic field on the liquid-liquid extraction,the extraction process of acetone-water-methyl isobutyl ketone system was studied under magnetic field with different magnetic induction intensities.
为探讨磁场对液-液萃取过程的影响,本研究在不同磁感应强度的磁场中,对丙酮-水-甲基异丁基酮物系的萃取过程进行了研究。
6)  Liquid-liquid extraction
液液萃取
1.
Application of surface-treated high efficient BHB250Y type packing in liquid-liquid extraction;
经过表面处理的BHB250Y型填料在液液萃取中的应用
2.
Improvement and application of the liquid-liquid extraction simulation program of natural products;
天然产物液液萃取模型计算程序的改进与应用
3.
A static solid-phase microextraction procedure combined with liquid-liquid extraction was developed to determine the poly(dimethyl) siloxane(PDMS)-water partition coefficients(Kf) of polybrominated biphenyls(PBBs) by GC-MS.
结合静态固相微萃取与液液萃取方法,采用目标物的同分异构体作一对一的回收率指示物以确保水中目标物定量的准确性,建立了气相色谱-质谱测定6种多溴联苯在聚二甲基硅氧烷和水相间的分配系数(Kf)的方法。
补充资料:液液萃取
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性质:又称溶剂萃取或抽提。用溶剂分离和提取液体混合物中的组分的过程。在液体混合物中加入与其不相混溶(或稍相混溶)的选定的溶剂,利用其组分在溶剂中的不同溶解度而达到分离或提取目的。例如用苯为溶剂从煤焦油中分离酚,用导丙醚为溶剂从稀醋酸溶液中回收醋酸等。实验室中用分液漏斗等仪器进行。工业上在填料塔、筛板塔、离心式萃取器、喷洒式萃取器等中进行。应用于有机化学、石油、食品、制药、稀有元素、原子能等工业方面。

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