The process and importance of extractant regeneration of butene enrichment vacuum system is briefly described and problems occurred during extractant regeneration are analyzed and summarized.
简要叙述了丁烯提浓真空系统的萃取剂再生的工艺过程及重要性，并对萃取剂再生中存在的问题进行了分析与总结。
Antibacterial Activity of the Different Extracts from Silkworm Feces;
蚕沙不同溶剂萃取物的抑菌活性
Study on Chemical Composition of Supercritical Extraction Products from Ziziphus jujuba
酸枣超临界萃取物的化学成分研究
Based on the researches mentioned above,the conclusion is drawed,that extracts contains alipha.
研究了童亭亮煤和洼里亮煤在CS2 - NMP混合溶剂中的可溶性,重点考察了原煤,萃取物,萃余物在工业分析、真密度和黏结指数方面的联系;同时运用红外光谱( FTIR)现代分析技术对原煤及其萃取物和萃余物的组成和结构特征进行了对比分析,在此基础上提出了煤中主要存在两种组分即“致黏组分”和“不黏组分”的概念,并据此对胶质体液相的来源作了初步解释。
dyewood extract
木本植物染料萃取物,植物染料提取物
The Research of Coal Liquefaction Residue Solvent Extraction and the Characteristics of the Extract
煤液化残留物溶剂萃取及其萃取物的特性研究
Supercritical Extraction of Propolis and Preparation of Propolis Extract Liposomes;
蜂胶的超临界萃取及萃取物脂质体制备
Study on Thermal Extraction of Coal and Hydrogenation Liquefaction Behavior of Extract
煤的溶剂热萃取及萃取物加氢液化的研究
Study on Extraction with Supercritical CO_2 Fluid from Rhizoma Homalomena and Its Inclusion Process
千年健超临界CO_2萃取工艺及萃取物包合工艺研究
The waxes are classed as alcohol or organic solvent extracted materials.
这种蜡质属于乙醇有机溶剂的萃取物。
Papain, blueberry and raspberry extract.
成份：木瓜蛋白酶、蓝莓、覆盆子萃取物。
Determination of yield of benzene-soluble extract in brown coal
GB/T1575-1987褐煤的苯萃取物产率测定方法
Analysis of extracts from senna leaf by GC/MS
番泻叶萃取物的气相色谱/质谱分析
determination of matter soluble in water-hot extraction method
水溶物测定-热萃取法
determination of matter soluble in water-cold extraction method
水溶物测定-冷萃取法
Analysis of 39 drugs in urine by HPLC after solid-phase extraction;
固相萃取同时提取尿中的39种药毒物
Study on Complexation Extraction Structure of o-Aminophenol by FTIR
FTIR法研究络合萃取邻氨基苯酚萃合物的结构
Study on Improved Utilization of Hop Polyphenols with Supercritical CO_2 Extraction
超临界萃取啤酒花浸膏及其萃余物中多酚化合物提取的研究
Comparison of Simultaneous Distillation Extraction and Solid-phase Micro-extraction for Determination of Volatile Flavor Compounds of Chicken Broth
同时蒸馏萃取和固相微萃取对鸡肉汤挥发性风味物质萃取效果的比较
EXTRACTION OF INORGANIC SPECIES THROUGH COMPLEX FORMATION Ⅱ. HE EXTRACTION OF NITRIC ACID WITH DIBUTYL HYDROGEN PHOSPHONATE
无机物的络合萃取研究Ⅱ.——膦酸氢二丁酯对硝酸的萃取
Fig. 1. GC chromatography of volatiles of fruits of muskmelon using different extractive methods.
图一不同萃取法萃取洋香瓜果实中挥发性化合物之气相层析图。
Research on Bio-oil Solvent Extraction and Column Chromatography Seperation
生物油溶剂萃取以及萃取-柱层析分离法的研究进展