Methods: (1)To separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.
方法：（1）以硅胶柱色谱法，乙酸乙酯-石油醚梯度洗脱，自何首乌中提取分离二苯乙烯苷单体成分。
Methods: (1) to separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.
方法：硅胶柱色谱法，乙酸乙酯-石油醚梯度洗脱，自何首乌中提取分离二苯乙烯苷单体成分。
Results Method 1 of gas chromatography can′t be used for determination of monosaccharide in spirulina glucoprotein, while method 2 was suitable, and 7 monosaccharides were found in ion chromatography.
结果气相色谱法1不适于藻糖蛋白单糖分析，气相色谱法2较适合藻糖蛋白单糖分析；离子色谱法测得藻糖蛋白含7种单糖。
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。
The number average molecular weight was determined as 78 650, the weight average molecular weight as 125 446, the molecular weight distribution as 1. 59 by gel permeation chromatography.
采用凝胶渗透色谱仪测试其数均相对分子质量为78 650，重均相对分子质量为125 446，相对分子质量分布为1．59。
METHODS By chromatography a homogeneous polysaccharide B-1-3 was obtained.
方法应用柱色谱方法进行分离、纯化得一均一多糖组份B 1 3。
A piston and scraper assembly (26) for a high-pressure liquid chromatography column (1) is provided with a snap lock between the piston (5) and the scraper (25).
本发明涉及一种用于高压液体色谱柱(1)的活塞和刮刀装置(26)，其中在活塞(5)和刮刀(25)之间设有搭锁。
Screening the mutations and polymorphisms by denaturing high-performance liquid chromatography(DHPLC) and DNA sequencing Results: 1.
应用变性高效液相色谱（DHPLC）分析及直接基因测序筛查突变和多态。
Method: RRTP-1 was obtained by ion exchange column chromatography and gel chromatography.
方法：采用离子交换柱层析和凝胶柱层析纯化得到RRTP；
Gas Chromatography Analysis of Reaction System of Preparing 1, 2, 4, 5-tetramethylbenzene.
四甲苯催化制备1,2,4,5 -四甲苯反应体系的气相色谱分析。
Separation of 1, 1 '-binaphthalene-2, 2' -diol Optical Isomers by Derivatization High Performance Liquid Chromatography.
衍生化高效液相色谱法拆分1,1'-联萘-2,2 ' -二酚光学异构体。
Analysis of Components of Synthetic 1, 1, 1, 2-tetrafluoroethane and Its Related By-Products From Vapor Phase Catalytic Fluorination by Gas Chromatography-Fourier Transform Infrared Spectroscopy.
气相催化氟化合成的1,1,1,2 -四氟乙烷及其相关副产物组分的气相色谱-红外光谱分析。
The qualitative analysis using thin layer chromatography which crocin-1 and crocin-2 as the check samples and the ethy1 acetate-methanol-water (100:16.
对西红花提取物的精制品进行了分析，定性分析采用薄层色谱法，以西红花甙-1、甙-2为对照品，乙酸乙酯-甲醇-水（100：16。
This paper describes the analytical method using gas -chromatography for systems of temperature swing extraction with n-dodecane, 1, 3.5-trimethyl benzene and tri-ethylene glycol.
本文描述了变温革取法用三甘醇分离正十二烷和1,3,5—三甲苯时样品的气相色谱分析方法。
This paper describes the analytical method using gas -chromatography for systems of temperature swing extraction with n-dodecane, 1, 3.5-trimethyl benzene and tri-ethylene glycol.
本文描述了变温革取法用三甘醇分离正十二烷和1,3,5—三甲苯时样品的气相色谱分析方法。
应用推荐