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从氨基酸的 dipeptides 的形成能被 hydroxyapatite 在空中在相对低的温度驾驶。例如，形成(翼) 2 在 110 愠搠杯 ? 在 hydroxyapati......
In the current work, chryosphanol (MHAQ) was isolated and purified from rheum,and the photosensitization activities were......
The growth habit of the basic magnesium oxysulfate whisker was investigated based on the theoreticalmodelof anion coordi......
EFFECT OF ROSIGLITAZONE AND METFORMIN ON CLOMIPHENE CITRATE RESISTANCE IN WOMEN WITH POLYCYSTIC OVAR
Objective To evaluate the impacts of rosiglitazone and metformin on ovarian response, hirsutism and insulin action in wo......
Vanillyl alcohol,which is made up of an aromatic ring,an alcoholic hydroxyl group,a phenolic hydroxyl group and a methox......
三乙醇胺是一种常用试剂,它的结构式如下:(?)与一个金属离子螯合是通过N和O原子上的孤对电子实现的。作者早就指出,这一命各有误(......
The structures of 26 different congeners of polychlorinated biphenyls(PCBs, including monothrough deca-chlorinated) were......
Heterogeneous Fenton-like degradation of 4-chlorophenol using iron/ordered mesoporous carbon catalys
Ordered mesoporous carbon supported iron catalysts(Fe/OMC) were prepared by the incipient wetness impregnation method an......
The changes of the specific rotation and sign of optically active BINOL have been studied in polar/non polar solvents a......
INTRODUCTION. Hydroxamic acids function variously as growth factors, antibiotic antagonists, tumour inhibitors and cell......
In order to test the reliability of γ-GT foci(γ-glutamyltranspeptidase positive hepatocyticfoci) as a preneoplastic m......
A novel wet vapor photoresist stripping technology is developed as an alternative to dry plasma ashing and wet stripping......
A novel type of thermal stabilizer antimony tris (thioethyl stearate)(ATS) was synthsized. Its thermal stability was me......
期刊
For the first time, synthetic dipeptides were applied to the catalysis of asymmetric Reformatsky reaction. Review in thi......
【正】 It is hopeful that a brand-new technique of making sulfuric acid from waste acidgeneralized in titanium dioxide p......
Soluble reactive copoly (aryl ether ketone ketone) was synthesized from the condensation of 2,2’,3,3’,6,6’-hexaphenyl......
报道了一种简便合成 2 -( 4-硝基苯氧基 )乙醇的新方法 ,其结构由熔点 ,IR和1H NMR确定。该化合物是一个结构较为简单的有机小分子......
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The composite electrodes consisting of carbon nanotubes and spherical Ni(OH)2 are developed by mixing nickel hydroxide, ......
Fe3O4 nanoparticles were prepared by chemistry co-precipitation and the mean crystal size was 17.9 nm measured by XRD. A......
Preparation of highly dispersed antimony-doped tin oxide nanopowders by azeotropic drying with isoam
Antimony-doped tin hydroxide colloid precipitates were prepared by hydrolysis of SnCl4·5H2O and SbCl3 ethanol solutions......
1.《HighEnergyPhysicsandNuclearPhysics》,Vol.24,2000(1)InfluenceoftheK-mesonsabsorptiontotheirproductionintheheavy-ionco......
作者曾从云南红豆杉和南方红豆杉分离、鉴定了2个新的紫杉烷二萜 dantaxusinA 和 B 及6个已知的紫杉烷二萜,现又从云南红豆杉 Tax......
目的 分析乌拉尔甘草 Glycyrrhiza uralensis的化学成分。方法 采用正、反相硅胶柱层析分离 ,应用波谱方法进行结构鉴定。结果 ......
[Objective] To optimize the microwave extraction process of total alkaloid from Aconitum flavum,so as to lay the foundat......
Asia Pacific Journal of Pharmaoology,1993;8:61--65 Semi-differential voltammetry combined with carbon fiber electrodes ......
[Objective] To establish the methods for the identification and determination of flavonoids components in Prinsepia util......
An improved enzyme-linked immunosorbent assay (ELISA) for the determination of southern bean mosaic virus (SBMV) with l......
The title compound,sarcophytol-A benzyl ether has been synthesized through 13 stepsby employing acetone and geraniol as......
This paper introduced the synthesis and properties of IER based on 2-hydrox-yethyl methacrylate. The derivatives contai......
MACROPROCESS OF PARTICLE FORMATION IN SUSPENSION POLYMERIZATION OF STYRENE WITH INORGANIC STABILIZER
The macroprocess of particle formation from suspension droplets of styrene in a pdymerizationsystem was investigated.In......
PREPARATION OF PARTICLE SIZE NARROWLY DISTRIBUTED LOW-DENSITY STYRENE DIVINYLBENZENE COPOLYMER MICRO
In view of the importance of dispersion agent, the amount of the crosslinking monomer and the diluent in suspension poly......
Optically Pure Synthesis and A Novel Tandem Asymmetric Michael Addition-Elimination Reaction of Chir
Chiralγ-menthyloxy butenolides have played an important role in the construction of various het-erocyclic compounds an......
[Objective] To study chemical constituents of Mahonia duclouxiana Gagnep. [Method] The isolation and purification of the......
Antioxidant supplements from plants are vital to count the oxidative damage in cells.We assessed the antioxidants and an......
目的:研究中国尖瓣光萼苔(东亚亚种)的化学成分。方法:采用多种柱色谱技术分离,运用NMR、MS、IR等多种波谱技术鉴定化合物的结构。......
Purification and Structural Analysis of a Selective Toxin Fraction Produced by the Plant Pathogen Se
Thirteen fractions from the pathogenic plant fungus Setosphaeria turcica race 1 were separated and collected using high ......
目的:建立雌二醇在人肝微粒体中代谢产物的测定方法,研究低浓度雌二醇在人肝微粒体中的代谢机制。方法:有机溶剂提取、蒸发、重溶......
Thesynthesisofcrystallinezirconiumphosphateswasfirstreportedinl964byClearfieldandStynes[’J,whodeterminedtheformulaasZr(......
2-p- Anisyl-4 - methoxy- 5 -hydroxybenzofuran was opthesized via intramolecul ar Wittigreaction betueen the phosphoniur......
SACHEM,Inc.,established in 1950,is a privately held specialty chemicalcompany headquartered in Austin,Texas,USA.With th......
Synthesis and biological activity of new heterocyclic compounds 5-[(1,1-dimethyl)ethyl]-3-aryl- (1H-
In this paper new heterocyclic compounds 5-[(1,1-dimethyl)ethyl]-3-aryl-(1H-1,2,3-triazol-1-yl)-5-isoxazolidinols were ......
从灵芝一共生真菌 (CalcarisporiumarbusculaPreuss)的发酵液中分离得到 7个化合物 ,经波谱分析确定其结构分别为 :zythiostromica......
A novel pregnane glycoside, biondianoside E, was isolated from the roots of Biondia chinensis. By the spectroscopic and......
为探讨不同年龄阶段行为偏异儿童血5-羟色胺(5-HT)含量与正常儿童血5-HT含量的差异,寻找其变化规律,为早期干预提供理论依据。应用......
应用一水硫酸氢钠催化正丁醇与对羟基苯甲酸的酯化反应,合成了对羟基苯甲酸丁酯.研究结果表明,硫酸氢钠具有较高的催化活性.考察了......
