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
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。
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。
The cyclic voltammetric behavior of the organic phase at the liquid/liquid interface has been studied with a classic three-electrode system.
利用吡咯烷二硫代氨基甲酸铵作为螯合剂,甲基异丁酮作为萃取剂,将水相中的Pb2+萃取到有机相中,利用经典的三电极系统研究该有机相在液/液界面的伏安特性。
The partition of medymycin in aqueous biphase systems was determined by electrolysis at the liquid/liquid interface.
用液/液界面电化学分析技术检测了麦迪霉素在双水相体系中的分配情况,发现了麦迪霉素在双水相体系中的选择性分配,其分配系数大于44。
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
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
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。
High-speed counter-current chromatography (HSCCC) is a kind of liquid–liquid partition chromatography, which has the unique features of high speed, high efficiency and continuous processing capability.
高速逆流色谱(high speed countercurrent chromatography,简称HSCCC)是一种快速、高效、连续的液-液色谱分离技术,在中药、生化、保健食品、天然产物化学、环境分析等领域有着广泛的应用,本文综述了高速逆流色谱在食品功能成分分离纯化领域的应用,并对高速逆流色谱今后的研究方向提出了一些建议。
The liquid-liquid equilibrium binodal curves and the tie-line data of an epoxy cotton seed oil/acetic acid/water ternary system.
测定了环氧棉籽油－醋酸－水三元系分别在３０℃，４０℃，５０℃，６０℃下的液－液平衡双结点曲线，以及在４０℃，５０℃，６０℃下的液－液平衡系线数据；分别应用物料衡算法和系线中点轨迹法对实验数据进行了检验。
The distribution between oil and water phases of the three compositions is a problem on liquid-liquid equilibrium of the ternary mixing system .
分别用浊点法和结线法测定了40℃下四氢呋喃-环己烷-水三元体系的液-液平衡数据,绘出了液-液分屡曲线,得到了该体系的液-液分配关系。