METHODS: Alcoholic extraction, silica gel, ODS column chromatography and recrystallization were used. 方法:采用工业酒精提取、胶柱层析、DS柱层析和重结晶等方法。
The unsaponifiable matters including sterols, 4-methyl sterols and triterpene alcohols in perilla seed oil were separated and analyzed using flash chromatography with silica gel H and GC. 采用快速硅胶柱层析和气相色谱对紫苏子油中甾醇、4-甲基甾醇及三萜醇等不皂化物的成分进行了分离和分析。
Effects of adsorbing glycerol with silica gel on enzymatic transesterification of soybean oil 硅胶吸附甘油在酶法催化大豆油转酯化反应中的作用
Objective To study the catalytic activity of gallium sulfate supported on silica gel in the synthesis of amyl hexanoate. 目的研究硅胶固载硫酸镓在合成己酸戊酯工艺中的催化性能。
GC Determination of Acetic Acid in Ambient Air and in Waste Gas After Enrichment with Silica Gel Adsorption Tube 硅胶管富集-气相色谱法测定环境空气和废气中乙酸
The separation and purification of pristinamycins from the fermentation broth by the method of silica gel column chromatography was developed. 建立了对发酵液中的普那霉素进行分离纯化的硅胶柱层析方法。
Methods Silica gel superfine process was conducted by combining solvent extraction and separation with macroporous absorbent resin. 方法首先用溶剂萃取结合大孔吸附树脂分离,然后用硅胶柱精制提取。
The crude oil is chromatographed over silica gel. 粗制油状物用硅胶进行色谱分离。
Study on Modified Silica Gel for Adsorptive Separation of N_2/ CO_2 改性硅胶吸附分离N2/CO2的研究
Particle loss is minimized because the aerosol particles do not come into contact with the silica gel. 粒子损失最小化,因为气溶胶粒子不来接触到硅凝胶。
Diels-Alder Reaction of Furan Derivatives in Ionic Liquid and on Silica Gel Supported Ionic Liquid 呋喃类化合物在离子液体和硅胶负载离子液体中的Diels-Alder反应
The adsorption isotherm of benzene, naphthalene and phenanthrene from cyclohexane solution onto silica gel has been determined. 测定了硅胶自环己烷溶液中吸附苯、萘和菲的吸附等温线。
Material: By imports the pure silica gel or the import medical high polymer composition material is made. 材料:由进口纯硅胶或进口医用高分子合成材料制成。
Conclusion Chrysophanol and physcion could be effectively separated by silica gel column chromatography. 结论硅胶柱色谱可以实现大黄酚和大黄素甲醚的高效分离;
The main products are silica gel desiccant, lime desiccant, et al. 主要产品有硅胶干燥剂、生石灰干燥剂、等。
Preparation and chromatographic performance of phenylalanine molecularly imprinted polymers on silica gel in aqueous medium 水相中制备硅胶表面分子印迹聚合物及色谱性能研究
Conclusion: Silica gel column chromatography and crystallization are simple and rapid methods to isolate gardenoside. 结论:柱层析和重结晶方法是简单、速分离栀子苷的有效办法。
The Study of Natural and Synthetical Phosphatidylethanolamine's Separation by the Silica Gel Column Chromatography 硅胶柱层析分离天然及合成磷脂酰乙醇胺的研究
Study on Absorption Behaviour of Protein with Silica Gel Bonded by Porphyrin Reagents 卟啉试剂键合硅胶对蛋白质吸附行为研究
In this paper, silica gel column chromatography has been used to separate and purify folic acid from fermented broth. The chromatography method was studied and the suitable conditions were determined. 采用硅胶柱色谱分离纯化生物发酵液中的叶酸,实验研究了色谱方法,确定了适的谱条件。
Pure TS99 could be obtained from pretreatment fermentation broth through macroreticular adsorbent, silica gel column chromatography and thin-layer chromatography. 发酵液经过预处理后,依次用大孔树脂吸附,硅胶柱吸附层析和薄层层析等分离方法即可获得农用抗生素TS99纯品。
Study on technology and characteristic of immobilization trypsin with silica gel 硅胶固定化胰蛋白酶的工艺及特性研究
Catalytic synthesis of n-butyraldehyde glycol acetal with tin tetrachioride supported on silica gel; 用自制的磷钨钼杂多酸作催化剂,以丁醛和乙二醇反应合成了丁醛乙二醇缩醛。
The beauty of silica gel is the physical adsorption of water vapor into its internal pores. 硅凝胶的美丽,是其内部的物理吸附的水蒸汽进入毛孔。
An especially suitable silica gel is used for adsorption of the water contained in the air. 特别适合硅胶用于吸附其所含的水在空气中。
Methods: Silica gel column chromatography and crystallization were used to obtained gardenoside from Gardenia jasminoides. 方法:利用柱层析、结晶从山栀子的成熟果实中进行分离纯化栀子苷。
Determined by silica gel chromatography and high-performance liquid chromatography, the bioconversion ratio of hydrocortisone was34%. 经硅胶层析和高交液相色谱测定,氢化可的松转化率为34%。
Isoamyl butyrate was synthesized by using gallium sulfate supported on silica gel as the catalyst. 以自制的硅胶固载硫酸镓为催化剂,正丁酸和异戊醇为原料合成了丁酸异戊酯。
Silica gel column SPE-HPLC determination of methyltestosterone in aquatic products 硅胶柱SPE-HPLC测定水产品中甲基睾酮的研究
Silica gel column chromatography and solvent extraction were used to separate grease and abradant in a kind of excellent polishing paste for plastics, respectively. 分别采用硅胶柱色谱法和溶剂抽提,分离优质塑料抛光膏中的油脂和磨料部分。