查询词典 acid group

The detectable group, biotin-ε-aminocaproic acid N-hydroxysuccinimide ester, is attached to the remaining amino group. A series of multiamine compouds, i. e. ethylendiamine, 1, 6-hexandediamine, triethylenetetramine, tetraethylenepentamine, and synthetic polyarylamide are used inlabelling, it is found that linker arms and steric hindrance effect the detection sensitivity. The probes labeled by 1, 6-hexandediamine and triethylenetetramine can detect 0.1-0.5pg target DNA in dot blot hybridization, and their sensitivities are better than the others.

本文详细考察了乙二胺、己二胺、二乙烯三胺、三乙烯四胺、四乙烯五胺及合成的聚乙烯胺化合物对λDNA探针的标记和检测的影响，发现胺化物链长和空间位阻影响探针的杂交和检测，用己二胺和三乙烯四胺标记的生物素探针在杂交24小时、显色8小时后检测灵敏度达0.1-0.5pg，超过其它胺化物标记的探针。

Terminated DFA-PEG-PPG tripolymer polyester,which was synthesis by adding long chain fatty acid or fatty alkanol into the reactionsystem, contained not only chain lipophilic group but also polyester-polyether group,and had the building effection of alkanol antifoaming reagent and polyether one. Thenovel design theory for structure of antifoaming reagent was put forward by studyingperformance of product.

这种新型结构聚酯的合成，为消泡剂分子结构的设计提出了一种的思路；采用嵌段聚合方法所合成的_m-_n嵌段聚酯型高分子表面活性剂，其分子量比DFA-PEG和DFA-PEG-PPG三元共聚酯的分子量更大，所表现出的乳化性能更为优秀。

Free amino group and carboxy group on short peptide and amino acid can coordinate metal ion with vacant orbital to form chelate compound.

短肽和氨基酸的自由氨基上的-NH_2、羧基上的-C=O等均可与具空轨道的金属离子产生配位键，形成螯合物。

The survey indicates that 2.5 hours is the most appropriate time for producing nano-gold particles from PVA; when PVA reacts with chloroauric acid, Auis reduced to Au,while hydroxyl group is changed into carbonyl group; the diagram of DSC and TG show that increasing temperature and concentration can improve thermal stability of PVA membrane.

结果表明：PVA制备纳米金颗粒到反应2.5小时为宜；PVA与氯金酸的反应是-OH将Au还原为Au而转化为=O的过程；DSC和TG图谱表明温度和浓度升高都能提高PVA膜的热稳定性能。貌似无人，各位路过的大神，帮帮忙吧。

114 cases ulcerative colonitis from jan. 2005 to dec. 2008 in our hospital were divided into two groups. 63 cases in treatment group were given herbal decotion, 51 cases in control group were given sulfasalazine orally with succinic acid hydrogenation cortisone edema.

选择2005年1月至2008年12月来我院就诊的溃疡性结肠炎患者114例，随机分为两组，治疗组63例服用自拟中药汤剂治疗；对照组51例采用柳氮磺胺吡啶口服，琥珀酸氢化可的松灌肠。

Methods: 40 healthy male depuratory hamsters were divided into 4 groups: control group (10% lard), aerobic exercise group (10% lard), high α-linolenic acid HALA...

将健康雄性清洁级金黄地鼠40只，按体重随机分为空白对照组(10%猪油)、运动组(10%猪油)、高α-亚麻酸组(n6/n3为12.4：1)和低α-亚麻酸组(n6/n3为18.4：1)，EX组跑台训练，每周5天。

This dissertation is mainly focused on the reactivity of methylenecyclopropanes and comprises six parts. 1 The reactions of methylenecyclopropanes with phenylsulfenyl chloride, phenylselenyl chloride and diphenyl diselenide; 2 The coupling reactions of the ring-opening products derivated from methylenecyclopropanes; 3 The palladium-catalyzed ring-enlargement of mono-aryl group substituted methylenecyclopropanes to cyclobutenes. 4 The gold-catalyzed domino ring-opening and ring-closing hydroamination of methylenecyclopropanes with sulfonamides; 5 The Lewis acid-catalyzed reactions of mono-aryl group substituted methylenecyclopropanes with diethyl ketomalonate in the presence of water; 6 The iodobenzene diacetate mediated novel 1,3-dipolar cycloaddition of methylenecyclopropanes, vinylidenecyclopropanes, and methylenecyclobutane with phthalhydrazine.

本论文主要研究了亚甲基环丙烷类化合物的一些化学反应性能，共由以下六部分组成：1、亚甲基环丙烷类化合物与苯硫氯、苯硒氯及二苯基二硒的反应；2、亚甲基环丙烷类化合物开环产物的偶联反应；3、单芳基取代的亚甲基环丙烷类化合物在钯催化剂作用下的扩环反应；4、金化合物催化磺酰胺对亚甲基环丙烷类化合物的串联开环关环氨氢化反应；5、路易斯酸催化亚甲基环丙烷类化合物与丙酮二羧酸二乙酯在有水存在下的反应；6、醋酸碘苯促进的亚甲基环丙烷类化合物、亚乙烯基环丙烷类化合物及亚甲基环丁烷类化合物与邻苯二甲酰肼的新型1，3-偶极环加成反应。

We found that under acid condition, selenite radical combined with active hydroxide radical and amino-group of chitooligosaccharides to form chitooligosaccharides - Se compound molecule, the remaining group complex interacted with the negative sodium tripolyphosphate via electrostatical interactation to form nanoparticles with the size about 100nm.

通过透射电镜、粒径分析仪等方法表征，发现壳寡糖-硒纳米颗粒平均粒径为100nm左右，在酸性条件下，亚硒酸根与壳寡糖单元上活性羟基和氨基化合，形成壳寡糖-硒复合分子，剩余的基团与带负电的多聚磷酸钠复凝聚，在4℃下能够稳定保存，25℃以上壳寡糖溶胀而致纳米颗粒发生分解。

METHODS: The third passage of BMSCs and AMSCs at a density of 5×10^7 L^(-1) were divided into two groups. Cells in the induction group were incubated in 1.5 mL of osteoinductive medium, supplemented with 10^8 mol/L dexamethasone, 10 mol/L β-glycerophosphoric acid, and 50 mg/L vitamin C. Cells in the non-induction group were not treated with osteoinductive medium.

选取第3代骨髓间充质干细胞和脂肪间充质干细胞，按5×10^7L^(-1)接种后各分为2组：诱导组加入含10^8mol/L地塞米松、10mol/L β-甘油磷酸、50mg/L维生素C的成骨诱导培养基1.5mL，未诱导组不加入成骨诱导培养基。

Methods:The study group included 30 pregnant women diagnosed with PIH( 10 mild, 10 moderate, 10 severe). Thirty healthy pregnant women were selected as the control group. The serum was assayed for the activity of ACE by using color comparison method, hippuric acid used as the substrate.

选择轻、中、重度妊高征病人各10例为实验组，正常妊娠妇女30例为对照组，用马尿酸微量比色法检测血清中ACE活性，并进行对比分析。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。