查询词典 purified

After the pathogenic bacterial from typical samples were isolated and culturally purified, twenty strains, were obtainal was found.

通过对典型病害样本进行病原菌分离、纯化获得20个菌株。

Purified GO had a molecular weight between 145, 000 and 162, 300, as determined by Sephadex G-200 filtration and SDS-PAGE of the enzyme as cross-linked with glutaraldehyde. This result showed that the holoenzyme was a tetramer, and no change occurred in molecular weight of the enzyme during the s〓orage. The active form of GO from brassica leaves showed a constant molecular weight during purification, so did that from O. sativa leaves during greening of etiolated seedlings, maybe acting as a stable tetramer.

用Sephadex G-200胶过滤和戊二醛交联后的SDS-PAGE法测得纯化的菜心叶片GO的分子量在145，000-162，300间，为四聚体；并且在放置过程中其分子量和聚合态均保持不变，为稳定的四聚体；进一步研究表明菜心叶片GO在纯化过程中和水稻叶片GO在黄化苗的转绿过程中，两种GO活性状态的分子量和聚合态也没有发生变化，均呈四聚体。

Based on relative literatures,this part has included five resesearch aspects as below.1 Fifteen compounds were isolated and purified by extraction,column chromatography,and their structures were determined on the basis of spectral analysis: acteoside(Ⅰ-1),isoacteoside(Ⅰ-2),crenatoside(Ⅰ-3),cistanoside F(Ⅰ-4),sinapoyl-4-O-β-D-glucoside(Ⅰ-5),adenosine(Ⅰ-6),β-siterol(Ⅰ-7),oleanic acid(Ⅰ-8), succinic acid(Ⅰ-9),caffeic acid(Ⅰ-10),protocatechuic aldehyde(Ⅰ-11),p-hydro xybenzyl alcohol(Ⅰ-12),β-daucosterol(Ⅰ-13),D-galacitol(Ⅰ-14),D-mannitol(Ⅰ-15).Ⅰ-4～15 were obtained from this plant for the first time,andⅠ-6,7,9,and 13 were isolated from Orobanche genus for the first time.2 The scavenging test of DPPH showed that most compounds have comparative antioxidant activity as L-ascorbic acid and part of them show better activity such as the O.coerulescens extract and phenylethanoid glycosides.Acteoside showed potent free radical scavenging effects with a median inhibition concentration of 25.6μg/ml.3 The anti-HBV activities of acteoside,isoacteoside and crenatoside were measured,and all of them showed suppressive activity on the expression of HBsAg and HBeAg in the HepG2.2.15 cell line.

本论文在文献调研基础上对紫花列当化学成分及生物活性进行了研究，并从免疫抗病毒角度探讨紫花列当中特征性成分类叶升麻苷的肝保护作用及其机制。1采用大孔树脂、硅胶和Sephadex LH-20等色谱技术对紫花列当进行系统的植物化学研究，从中分离得到19个化合物，利用UV和NMR等波谱手段及理化性质鉴定了其中的15个化合物，分别为类叶升麻苷(Ⅰ-1)、异类叶升麻苷(Ⅰ-2)、crenatoside(Ⅰ-3)、cistanoside F(Ⅰ-4)、sinapoyl-4-O-β-D-glucoside(Ⅰ-5)、腺苷(Ⅰ-6)、β-谷甾醇(Ⅰ-7)、齐墩果酸(Ⅰ-8)、琥珀酸(Ⅰ-9)、咖啡酸(Ⅰ-10)、原儿茶醛(Ⅰ-11)、对羟甲基苯甲酸(Ⅰ-12)、β-胡萝卜苷(Ⅰ-13)、D-半乳糖醇(Ⅰ-14)和甘露醇(Ⅰ-15除化合物Ⅰ-1、Ⅰ-2和Ⅰ-3外，其余化合物均为首次从该植物中分离得到。2)通过大孔树脂富集该药材有效部位苯乙醇总苷，并采用HPLC测得其所含特征性成分类叶升麻苷的含量可达80%以上。3DPPH自由基清除试验显示紫花列当提取物及其所含的苯乙醇苷类化合物均具有较好的抗氧化能力，其清除DPPH自由基能力接近于抗坏血酸。4采用卡介苗整体致敏、脂多糖离体攻击构建大鼠原代肝细胞免疫性损伤模型，在体外观察类叶升麻苷的保肝作用。

Purified acidic fibroblast growth factor from bovine brain stimulates the proliferation of calvaria-derived osteoblastic cells.

洗涤酸性的纤维原细胞生长因素从似牛的大脑刺激得自头顶osteoblastic房间的增殖。

BMSCs were purified by the differential adherence. At the third passage, BMSCs were incubated in osteogenous, adipogenic and chondrogenic medium for 14 days.

取生长状态良好的第3代骨髓间充质干细胞，分别加入成骨、成脂、成软骨诱导培养基，培养14 d。

The total aerobic plate counts for bacterial colonies, coliform and the microflora of the purified oyster by ozone were identificated. The oyster Ostrea plicatula were collected from the breeding base in Xidian, Ninghai county of Ningbo.

采集浙江省宁海县西店养殖的褶牡蛎去壳取肉，经过臭氧水杀菌净化处理后，对牡蛎体内细菌菌落总数、大肠菌群和细菌菌群组成进行了分析研究。

The recombinant protein was purified by Ni-NTA affinity chromatography and gel filtration chromatography. The inbred C57BL/6 strains and outbred KM strains of mice were subcutaneously immunized with the protein formulated by either adjuvant ISA720 or aluminium hydroxide.

表达产物通过Ni-NTA亲和层析和凝胶过滤层析方法纯化，再分别与ISA720和Al3佐剂乳化后，免疫C57BL/6和昆明小鼠，通过尾蚴膜反应和ELISA反应检测特异性抗体。

In this paper, the carbon nanotubes made by CVD were purified by acid solution. Results indicate that the ports of CNTs were oxidated and opened up, the surface of CNTs bring a lot of oxygenous functions, which was useful for dispersion of CNTs in the water solutions.

采用液相氧化法对CVD法制备的碳纳米管进行了提纯，结果表明，经过提纯后碳管的端口被打开且表面产生了大量的含氧官能团，使其在水溶液中的分散性得到了改善。

A white needle crystal was isolated and purified on systematic extraction of the alkaloid by silica gel column and gradient sublimation from Oxytropis glabra.

摘要采用生物堿系统提取、矽胶柱层析分离及梯度升华技术从小花棘豆干草粉中分离出一种白色针状结晶。

Traditional simultaneous distillation extraction was used to extract the volatile compounds from Macrobrachium nipponense,Penaeus chinesis and Palaemon modestus Heller.A total of 116 volatile flavor compounds were purified and identified successfully by GC-MS.

研究采用同时蒸馏萃取法提取，利用GC-MS分析了中国对虾、秀丽白虾及日本昭虾的挥发性风味成分。3种虾共鉴定出116种风味物质，对虾的挥发性化合物总量最高，日本昭虾其次，秀丽白虾最低。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷