分离

The produced thorium was radiochemically separated from the mixture of uranium and its reaction products.

用快速放射化学分离技术从铀及其反应产物的混合物中分离出Th同位素。

The whole analysis was completed on a C〓 column in 18min at a flow rate of 0.5 ml/min, with the mobile phase of methanol-water (93: 7, v: v) containing 75 mmol/L TEOLA and 200 mmol/L HAc, or with the mobile phase of ethanol-water (90: 10, v: v) containing 25 mmol/L TEOLA and 200mmol/L HAc pumped at 0.25ml/min. Compared with the methanol system, the ethanol system was a better candidate for the separation of thulium porphyrin complexes in view of selectivity.

在C〓分析柱（5μm，2.5×150mm）上，流动相为：甲醇：水＝93：7（v/v内含75mmol/L三乙醇胺和200mmol/LHAc），流速为0.5ml/min和流动相为：乙醇：水＝90：10（v/v，内含25mmol/L三乙醇胺和200mmol/L HAc），流速为0.25ml/min，均能使六个铥卟啉配合物在18min内得到有效的分离，相比之下，乙醇体系对铥卟啉配合物更具有分离选择性。

In this dissertation, firstly, the conditions of isolation and purification of specific toxin fractions produced by Exserohilum turcicum has been studied, and a high-efficient method has been established;secondly, the toxins were analysed by UV-Vis spectrophotometry;then the effect of specific toxin on death rate of corn leaves protoplast was studied by FDA as a tinct reagent;finally, using ANS as a probe and SDS-PAGE to study the membrane protein of the corn leaves with Htl gene. In a word, the aim of the research is to search some existent evidences of the toxin binding site on protoplasmic membrane, and provide proofs for nosogenesis of specific toxin in terms of cytology and the molecular biology.

本研究对玉米大斑病菌1号小种毒素的特异性组分进行分离，建立了高效的特异性毒素分离纯化方法，并对其进行了紫外波谱分析；用荧光素双醋酸酯染色法，测定了毒素特异性组分对原生质体死亡率的影响；进而用1-苯胺基-8-萘磺酸荧光探针标记法和SDS-PAGE电泳法对特异性毒素组分与Htl基因玉米细胞互作过程中的质膜蛋白进行了研究，旨在证明Htl基因玉米细胞质膜上存在特异性毒素组分结合蛋白，为从细胞和分子生物学角度阐明毒素的致病机理提供证据。

The preparing method includes following steps: adding organic iron to carbon nanotube polylol solution, cooling to room temperature by heating to boiling, the product dispersing in toluol or chloroform via being separated, dried after adding nonpolar solvent, then adding the prepared solution to solution prepared by L-lactide and evocating agent, then separating, drying product.

本发明的制备方法如下：将有机铁加入到碳纳米管多元醇溶液中，加热到沸腾后冷却至室温，加入非极性溶剂后，分离、干燥产物，将所得产物分散在甲苯或三氯甲烷中，然后将所得溶液加入到L-丙交酯与引发剂配成的溶液中，然后分离、干燥产物。

As the layer structure of lattice, relative separation properties and relative compactness in L-fuzzy topological spaces are more complex than that in general topological spaces.

由于层次结构的存在，L-fuzzy拓扑空间中的相对分离性和相对紧性较一般拓扑学中的相对分离性与相对紧性复杂得多。

It is also an ideal source of tissue engineering and cell substitutive therapy of regenerative medicine. The target of this experiment is to investigate how to isolate totipotent mouse ESCs from BALB/C species mice and to analysis some biological characteristics of ESCs.

本实验旨在研究如何从BALB／C小鼠的囊胚中分离出具有全能性的胚胎干细胞，并对胚胎干细胞集落进行培养、鉴定，以了解胚胎干细胞生物学特性，为掌握小鼠ESCs分离培养技术及将来进一步研究人ESCs打下基础。

Secondly,the phase separation mechanism,phase evolution and mechanical properties of toughener/BMI diphase system were investigated to prepare for toughening composite with Ex-situ technique.

其次，针对离位增韧中增韧剂与BMI树脂之间的相分离行为，研究了增韧剂与BMI树脂的反应诱导相分离机理、相形貌演化和力学性能。

Now he is down to the upper chest and he transect the vessels.

医生分离到了胸腔上部，他要分离血管了。

In the experiments, we found that this two kinds of laser tweezers exhibited different optical trapping capabilities.

五在原有系统的基础上加入自行搭建的三维移动细胞分离装置，实现了单细胞的分离。

From an extensive molecular epidemiological surveillance around the H5N1 infected regions in the past several years, H5N1 viruses were isolated from the wild birds, eg. Bar-headed goose, brown-headed gull, great black-headed gull and common cormorant form Qinghai province and tree sparrow from henna province.

通过开展高致病性禽流感疫区的分子流行病调查，从野生鸟类分离到这种H5N1亚型的禽流感病毒，如从青海湖斑头雁、棕头鸥、渔鸥、鸬鹚，从河南的树麻雀等都分离到这种病毒。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐