查询词典 chromatography

There are two methods to detect and quantitative analysis Neu5Ac, one is high performance liquid chromatography with the use of Aminex87H column, the other one is barbituric acid method.

对Neu5Ac的检测和定量也有两种方法，一种是利用Aminex87H酸性糖基柱，通过高效液相色谱测定；另一种是硫代巴比妥酸法测定。

Objective:The high performance liquid chromatography method is employed for determining barrenwort of the health food.

目的：建立高效液相色谱法测定保健食品中淫羊藿苷的方法。

The BAW detector combined with ion exclusion chromatography is used to determine short-carbon-chain organic acids in beehoney and beverages. NA and NAD in foods is also determined by IC-BAW.

本文以离子排斥色谱分离结合BAW检测，对峰蜜和饮料中的低分子有机酸进行了测定；也用离子交换色谱-BAW测定了常用食品中烟酸、烟酸胺的含量，实现质量监控。

The volatile organic compounds produced in the laser-sculpture process of bicolor board were studied using cold trap condensation-gas chromatography-mass spectrometry.

研究了冷阱浓缩气相色谱－质谱法检测双色板在激光工艺雕刻过程产生的挥发性有机污染物的组成。

Chromatography peaks were obtained by GC-MS and 56 compounds were identified. The main components were linalyl butyrate (30.212%),(1α, 3α, 4β, 6α)-4,7,7-trimethyl-bicycloheptan-3-ol (10.940%),-4-carene (1.826%), 4-methylene-1-(1-methylethyl)-bicyclo [3.1.0] hexane (1.109%),β-myrcene (1.170%), limonene (5.784%), 3, 7-dimethyl-1, 6-octadien-3-ol (5.742%), n-hexadecanoic acid (0.914%) and-9, 12-octadecadienoic acid (2.952%), etc.

用GC-MS分离出69个峰，鉴定出56种物质，主要成分为：芳樟丁酸酯(30.212%)、(1α， 3α， 4β， 6α)-4，7，7-三甲基－双环[4.1.0]庚烷－3-醇(10.940%)、-4-蒈烯(1.826%)、4-亚甲基－1-（1-甲基乙基）－双环[3.1.0]环己烷(1.109%)、β-月桂烯(1.170%)、柠檬烯(5.784%)、3，7-二甲基－1，6-辛二烯－3-醇(5.742%)、n-棕榈酸(0.914%)、-9，12-十八碳烯酸(2.952%)等。

The separation of optical isomers of 2, 2'-dihydroxy-1, 1'-binaphthyl and 2, 2'-diamino-1, 1'-binaphthyl was studied by reversed-phase high performance liquid chromatography on a chiral stationary phase consisting of-hydroxypropyl-β-cyclodextrin (Cyclobond Ⅰ 2000 SP)using methanol/water as the mobile phase. The effects of mobile phase ratio, flow rate and column temperature on separation of optical isomers of DHBN and DABN were investigated.

在S-羟丙基－β-环糊精手性柱(CyclobondⅠ2000 SP)上用反相高效液相色谱法研究了2，2'-二氨基－1，1'-联萘和2，2'-二羟基－1，1'-联萘光学异构体的分离，考察了流动相组成、流速以及柱温等对联二萘胺和联二萘酚光学异构体分离的影响。

The industrialization of the hybrid process of bioreaction accompanied with chromatographic separation was also explored, where much attention was paid to the use of continuous annular chromatography .

对生物反应液相色谱分离耦合过程的工业化前景进行了探讨，强调了采用伴有生物反应的连续环状色谱过程的可行性。

Terpenoids were separated and purified from Bletilla striata by extraction and chromatography.

采用萃取和色谱法从白芨中分离和纯化了该萜类化合物。

Methods The BiVP gene was screened by the ESTs technology and cloned by PCR method from the cDNA library of the bumblebee, Bombus ignitus. It was reconstructed to form the baculovirus transfervector pBac1-BiVP and expressed in Sf-9 insect cell. The recombinant BiVP was purified by the fast protein liquid chromatography system.

利用ESTs从红光熊蜂cDNA文库中获得BiVP基因，以PCR技术扩增出BiVP的完整cDNA，并构建病毒表达载体PBac1-BiVP，通过昆虫杆状病毒表达系统，在Sf-9昆虫细胞中进行表达，表达产物用快速蛋白液相色谱系统进行纯化。

ObjectiveTo establish the method for determination of bornyl acetate in Valeriana amurensis volatile oil by Gas Chromatography.

目的建立黑水缬草挥发油中乙酸龙脑酯的含量测定方法。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。