分离

Compared with solvent extraction, the extraction time of microwave extraction was reduced from 20 h to 450 s, the extraction rate was increased from 79.86% to 92.23%, and that AB-8 was used to extract Chimonanthus praecox Link. flavonoids were very effective and low cost.

与溶剂浸提法相比，采用微波法提取腊梅花总黄酮提取时间由20 h缩短为450 s，提取率从79.86%提高到92.23%，而且AB-8分离腊梅花总黄酮分离效果明显，成本低。

Separation/preconcentration is always necessary for improving sensitivity and selectivity of analyt...

在分析科学中，为提高分析方法的灵敏度与选择性，分离与富集是必不可少的，其中柱材料分离富集占有十分重要的位置。

Separation/preconcentration is always necessary for improving sensitivity and selectivity of analytical method.

在分析科学中，为提高分析方法的灵敏度与选择性，分离与富集是必不可少的，其中柱材料分离富集占有十分重要的位置。

Furthermore,the behaviour of separation and preconcentration of the technology to the TCs residues in water was investigated.

课题首次提出建立集分离/富集与分析检测于一体的绿色新型综合技术，并研究该技术对水体中四环素类抗生素的分离/富集行为，旨在为控制水体抗生素残留污染奠定理论与实践基础。

Affinity chromatography materials for kinase;2. To search a suitable process route of purification of kinase in yeast by affinity chromatography, hexokinase was preparatorily purified by salt preciptation.

为确定一条采用亲和层析技术分离纯化酵母中磷酸激酶的较佳工艺路线，采用分步盐析初步纯化己糖激酶，考察硫酸铵饱争度对盐析效果的影响；以ATP为配基，SESA活化纸纤堆素制备亲和层析剂，确定最佳偶联条件和最佳静态吸附pH值后，将粗酶液直接上亲和层析柱，看分离纯化的效果；在载体和配基之问接上1。

Ethel ether, propanone and methyl alcohol were used for the separation of sample, BRUKER VECTOR33 FTIR spectrometer was used for test. The infrared spectrums are analyzed, the qualitative and quantitative analyses of the components are shown and the function of every composition is explained.

分别采用乙醚、丙酮、甲醇等有机溶剂对样品进行分离处理，通过BRUKER VECTOR33傅里叶变换红外光谱仪进行测试，对分离后各组份的红外光谱特征进行解析，给出样品的定性和定量分析结果；对各组份在清洗剂产品中的功能进行了分析说明。

The isolation result of solvent system is credible, and the method could be used to prepare reference substance of dl-tedrahypalmatine and protopine.

该溶剂体系分离结果可靠，可作为延胡索乙素、原阿片碱化学对照品的制备分离方法。

The protozoa were isolated from field animal blood, vectors, pathogenic tissue and secretions. Based on differences of the pathogen morphology, vector species, experimental infected animals, single parasite clone and parasitic tissues, protozoiasis pathogens from different areas and animals in China were isolated and the vectors and transmission mode were also determined by vector transmission trial. Sequence analysis of 18S rRNA gene was used to study the phylogeny of partial isolated protozoa.

自野外采集动物血液、传播媒介、相关组织、排泄物等，根据对病原形态鉴定、传播媒介鉴定、实验性感染易感动物、单一虫株克隆、不同致病部位等方法，对我国不同地区、不同家畜的原虫病病原进行分离，并通过媒介传播试验确定传播媒介的种类与传播方式；采用18S rRNA基因测序方法，对本实验室已分离的部分原虫进行进化关系研究。

Three infectious bronchitis virus isolates named as Q1, J2 and T3 were isolated from proventricular tissue taken from vaccinated chicken flocks in China The biological characteristics of the three isolates were observed.

中文题名传染性支气管炎致腺胃病变毒株变异的分子基础及我国和东南亚分离株的分子流行病学研究副题名外文题名 Molecular basis for variation of proventriculus pathogenic IBV isolates and molecular epidemiology of IBV isolates from China and southeast Asia 论文作者蒋贻海导师陈溥言教授学科专业预防兽医学研究领域\研究方向动物分子病毒学及免疫学学位级别博士学位授予单位南京农业大学学位授予日期2002 论文页码总数127页关键词鸡传染性支气管炎传染性支气管炎病毒腺胃毒株馆藏号BSLW /2003 /S855 /9 从我国接种过传染性支气管炎疫苗的幼鸡群的腺胃组织中分离得到三个传染性支气管炎毒株Q1、J2和T3，并对它们的部分生物学特性进行研究。

Careful dissection continues proximally until right and left hepatic ducts are separated above the tumor.

然后仔细地向近端分离胆总管直至肿瘤以上的左右肝管也被分离。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。