合成物

These have attracted wide interest in the last years because it represents a key intermediate of the synthesis of Cinchona alkaloids ; such as quinine and cinchonamine.

由於它们为许多重要且具有药效的金鸡钠生物碱，如奎宁和金鸡钠胺，合成时之关键中间物或先驱物，使得在最近几年来引发广泛的研究兴趣。

The ternary complexes of Ln with 8-hydroxyquinathroline and cinchophen (2-phenyl-quinoline-4-carboxylic, HL) had been synthesized and their composition, solubility, molar conductance, UV, IR, 1HNMR and XPS studied.

合成了3种辛可芬(2-苯基喹啉-4-甲酸，HL)与8-羟基喹啉的稀土三元配合物，通过元素分析，摩尔电导，UV，IR，1HNMR等的研究，确定配合物的化学组成为Ln3·H2OLn=Ce(Ⅲ，Nd，Sm，观察了它们的抗炎作用、半数致死量(LD50)和在霜剂中的配伍稳定性

Finally, carry on the effect of pour point depressant and viscosity reducer.

在此基础上合成三元共聚物AVM和四元共聚物ASMV。

Reaction temperature, reaction time and different distillate oil on the properties of petroleum sulfonate were studied.

本文以发烟硫酸和三氧化硫作为磺化剂，选用重烷基苯或石油馏分油，在不同的工艺条件下进行磺化反应，摸索了反应物配比、反应温度、反应时间和不同原料等条件对合成产物的性能影响，得出反应物配比是影响磺化收率的重要因素。

Methods The total RNA of leucocyte was extracted 43 allergic vasculitis patients and 24 normal subjects before and after treatment with Trizol reagent and the integrity and concentrations of HLA-DRw53 gene mRNA were determined by agarose gel electrophoresis and UV spectrophotometer after denatured with 1% formaldehyde, the product was transcribed into complementary retroviral synthetic deoxyribonucleic acid, and sequence-specific primers were designed based on the sequences of second HLA-DRw53 gene exon and housekeeping gene glyceraldehyde phosphate-dehydrogenase cDNA.

利用随机引物逆转录合成互补脱氧核糖核酸，根据HLA-DRw53基因第二外显子序列和管家基因人磷酸甘油醛脱氢酶的cDNA序列设计序列特异性引物。检测43例变应性血管炎患者治疗前后与24名正常人HLA-DRw53基因mRNA表达量的变化。

Moreover, DSC results indicated that the equivalent reactant ratio gave rise to the complete chain-extending, and the highest molecular weight and tensile strength of the copolymer was present.

另外DSC结果发现，合成共聚物的原料配比对材料的结构和性能有影响，反应物以等摩尔当量配比时，样品的扩链反应最完全，相应的分子量也可能最高，同时抗张强度最高。

Benzaldehyde nitrogen mustard isonicotinoyl hydrazone was synthesized according to literature method. The copper , cobalt , nickel , chromium , iron , zinc and cadmium complexes of it were prepared and characterized by elemental analysis, IR, UV-vis, NMR and EPR spectra. The cytotoxicity effect of the complexes was examined on SMMC-7721 cell line. Results show that the complexes have definite antitumor activity and the synergic effect between chromium and the ligand.

依照文献合成了异烟肼苯甲醛氮芥腙及其铜、钴、铬、镍、铁、锌和镉配合物并用元素分析、红外、电子光谱、核磁共振及电子顺磁共振光谱，对这些配合物进行表征，确认了它们可能的立体结构，并研究它们对SMMC-7721人肝癌细胞的作用，结果表明它们均有一定的抗肿瘤作用，发现铬与配体存在有协同作用。

Study on the synthesis of ultrafine powder of lead carbonate.

采用均匀沉淀法合成碳酸铅，研究反应温度、时间、反应物浓度、反应物配比对碳酸铅收率的影响。

A series of oligoaniline-modified mono- and bis-nuclear iron complexes have been synthesized successfully, and their spectroscopic and electrochemical properties have been studied.

合成了一系列齐聚苯胺修饰的三联吡啶铁配合物，研究了齐聚苯胺链长、不同取代基等对配合物光谱性质和氧化还原性质的影响。

We find out that besides themain phase blue flaky crystals, there are also some aqua needle-shaped crystals andblack phases.

通过双目镜对合成产物进行初步表征，发现其主要物相是蓝色片状晶体，其外还有少量浅绿色针状晶体和少量黑色物相。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失