Water quality - determination of certain organochlorine insecticides , polychlorinated biphenyls and chlorobenzenes - gas chromatographic method after liquid - liquid extraction
12.
Water quality - determination of selected alkylphenols - method for non - filtered samples using liquid - liquid extraction and gas chromatography with mass selective detection
13.
Water quality - determination of certain organochlorine insecticides , polychlorinated biphenyls and chlorobenzenes - gas - chromatographic method after liquid - liquid extraction iso 6468 : 1996 ; german version en iso 6468 : 1996
14.
Recently , some techniques , like liquid - liquid extraction , headspace , chromatography fractionation and spme , have applied to the researches of aroma compounds in chinese rice wine
15.
In this paper , the definition , structure , content , origin and property of ionic liquid are introduced . in addition , the questions lying in liquid - liquid extraction are briefly discussed
16.
By using liquid - liquid extraction and photochemical desulfurization process , the technology for photochemical degradation of sulfur compounds and kinetics of reaction was investigated
17.
It is shown from the recent research , the random packing has better performance than other column internals for liquid - liquid extraction , absorption with high liquid loading and high pressure distillation
18.
At present , liquid - liquid extraction common ultraviolet spectrophotometry method is used for the analysis and examination of such medicine . the separating method of liquid - liquid extraction is overelaborate and waste solution . the recoveries are low
19.
The extraction techniques are generalized under three categories : the supported liquid membrane extraction ( slme ) and microporous membrane liquid - liquid extraction ( mmlle ) based on flat membrane and the liquid phase microextraction ( hflpme ) based on hollow fiber membrane
20.
Abstract : taking ecological labels as the basis , the article investigates the residue and origin of pesticide on natural fibre fabrics , and detection means for trace harmful substances on textiles , e . g . liquid - liquid extraction , supercritical fluid extraction and the latest solid - phase microextraction - gas - phaseamass spectrum technique
