查询词典 purification

The hyperglycemic activity of pancreatic extracts was encountered some 80 yr ago during efforts to optimize methods for the purification of insulin.

约80年前，在尝试优化胰岛素提纯技术的过程中人们发现胰腺提取液能引起高糖状态。

The hyperglycemic actiity of pancreatic extracts was encountered some 80 yr ago during efforts to optimize methods for the purification of insulin.

约80年前，在尝试优化胰岛素提纯技术的过程中人们发现胰腺提取液能引起高糖状态。

The hyperglycemic actiity of pancreatic extracts was encountered some 80 yr ago during efforts to optimize methods for the purification of insulin.

80年前，人们在尝试优化胰岛素提纯技术的过程中发现胰腺提取液具有升高高糖的活性。

Specialized contract home use/commercial straight potable water project, Yang water purification system, industrial used pure water, hyperpure water conservancy project regulation, water sales commission systems engineering.

专业承接家用/商用直饮水工程、央净水系统、工业用纯水、超纯水工程、中水回用系统工程。

Order of discontinuity ladder gradient separation: The nature school DNA separation purification conventional routes are use the gold to manage the CsCl idiomorphic to become the gradient balanced equilibrium density centrifuge process, the offcenter starts when the gold manage the CsCl density to be homogeneous, sample uniform distribution in which.

不连续阶梯梯度分离：质校DNA分离纯化传统方法是采用金管CsCl自形成梯度平衡等密度离心法，离心开始时金管CsCl密度均一，样品均匀分布其中。

After extraction by ethanol and purification by cationic ion-exchange column, a method of using reversed-phase high-performance liquid chromatography and precolumn derivatization with o-phthalaldehyde and 9-fiuorenylmethylchloroformate is employed for determination of free amino acids in tobacco . This method assures that amino acids with amino and imino groups can be determined simultaneously. The results of duplication experiment and recovery experiment are acceptable.

本试验用乙醇提取烟叶中的游离氨基酸，并用阳离子交换树脂纯化，再用邻苯二甲醛、氯甲酸芴甲酯联合柱前衍生、反相高效液相色谱分析测定了烟叶中的游离氨基酸，该方法能同时测定烟叶中的带氨基和亚氨基基团的氨基酸，并且分析方法的重现性和回收率均令人满意。

Objective To investigate separation and purification of skeletal muscle satellite cells with improved incontinuous density Percoll gradient centrifugation technique.

目的探讨应用改良Percoll非连续密度梯度离心法分离纯化培养组织工程用肌卫星细胞。

Methods Purification results were compared among the differential combination chromatography of anion and cation exchange, anion and cation exchange chromatography of both isocratic elution, and affinity chromatography.

阴、阳离子交换示差组合色谱法，以等度洗脱方法进行的阴、阳离子交换组合色谱，以及亲和色谱的纯化结果相对比。

Keywords: diketoreductase,isomeride,separation and purification,statins chiral side-chain expression, photoaffinity labeling probe

通过DEAE-Sepharose离子交换柱及Sephadex分子筛柱纯化后，酶的纯度达到电泳纯，并通过正相硅胶柱和反相C-18柱分离纯化其反应产物。

A HPLC method has been developed for the simultaneous determination of 4-methylbenzy- lalcohol,p-tolualdehyde,4-caboxybenzaldehyde,benzoic acid,p-toluie acid,terephthalic acid,o- phthalic acid and isophthalic acid in the residue from purification of terephthalic acid.

其残渣中含有再利用价值很高的中间产物：4一甲基苯甲醇(4一MBA)，对甲基苯甲醛(P一tolual-dehyde)，4一竣基苯甲醛(4一CBA)，苯甲酸，对甲基苯甲酸，对苯二甲酸，邻苯二甲酸，间苯二甲酸等。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。