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26491.红车轴草总异黄酮成分DNA结合剂的超滤质谱筛选
[化学原料和化学制品制造业] [2014-06-15]
采用离心超滤和液相色谱-质谱联用的方法,从红车轴草异黄酮提取物中筛选DNA结合剂.结果表明,红车轴草中10种异黄酮成分与DNA具有不同的结合能力.采用液相色谱-串联质谱联用技术对其结构进行了鉴定,DNA结合能力较强的5种化合物分别是德鸢尾素-4 ′-O-β-D-葡萄糖苷、德鸢尾素、黄豆黄葡萄糖苷、红车轴草素和鹰嘴豆牙素A.为从中药提取物等复杂体系筛选并鉴定DNA结合剂建立了快速的超滤质谱平台.
关键词：红车轴草;DNA;离心超滤;液质联用
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26492.多铁性材料Bi0.95R0.05(Fe0.95Mn0.05)O3(R=La,Pb)的磁性及局域结构研究
[化学原料和化学制品制造业] [2014-06-15]
利用溶胶-凝胶法成功制备了共掺杂Bi0.95R0.05(Fe0.95 Mn0.05)O3(R=La,Pb)样品,并对样品的磁性进行了测量和研究.研究发现La掺杂的Bi(Fe0.95 Mn0.05)O3材料磁性有较大的提高,而Pb掺杂Bi(Fe0.95Mn0.05)O3样品的磁性减弱.同时,利用同步辐射实验技术对样品的局域结构进行了研究,进而分析样品磁性变化的原因.
关键词：多铁性材料;局域结构;磁性;X射线吸收精细结构;multiferroic material;local structure;magnetic property;X-ray absorption fine structure
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26493.对电极性能对染料敏化太阳电池动力学过程的影响
[化学原料和化学制品制造业] [2014-06-15]
借助电化学阻抗谱(EIS)和强度调制光电流谱(IMPS)/强度调制光电压谱(IMVS)技术,采用不同纳米TiO2多孔薄膜对电极研究了染料敏化太阳电池(DSC)内部2个主要电荷输运过程的内在联系,并探讨了载Pt材料对DSC界面动力学过程及电池宏观性能的影响机理.借助等效电路模型分析了基于不同对电极材料电池的填充因子变化原因.结果表明,对电极材料的电极电荷交换过程制约光阳极膜内电子传输,进而影响电池光伏性能；同时对电极催化反应速率主要与催化剂活性、载Pt材料电导率和催化反应面积有关.
关键词：染料敏化太阳电池;对电极;界面动力学
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26494.La0.6Sr0.15Na0.1□0.15MnO3+xAgNO3复合体系的结构、磁性及磁电阻的温度稳定性研究
[化学原料和化学制品制造业] [2014-06-15]
采用固相反应法制备了La0.6Sr0.15Na0.1□0.15MnO3+xAgNO3 (x=0.08、0.16、1.00,x为物质的量比,□代表空位)系列复合材料样品,对复合样品的相结构、磁性质及其磁电阻效应进行了研究.通过相结构的研究发现:复合样品近似呈现La0.6Sr0.15Na0.1□0.15MnO/Ag/Mn3O4的特殊复合结构.通过对磁电阻的研究发现:复合样品不同程度地提高了母体样品的MR峰值,降低了峰值温度,使其更接近室温.在204～280K的温度范围内和1.8T外磁场作用下,当x=0.08时,MR保持在(4.70±0.25)％;x=0.16时,MR保持在(7.20±0.28)％.所以,复合样品较之母体样品,磁电阻的温度稳定性有了很大提高.
关键词：磁电阻;钙钛矿锰氧化物;温度稳定性
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26495.可见光响应型HCa2TaNb2O10/(Pb1-xZnxS)的微波法制备及其光催化性能研究
[化学原料和化学制品制造业] [2014-06-15]
通过微波辅助法和传统制备方法分别合成了可见光响应的光催化剂HCa2TaNb2O10/(Pb1-xZmS).采用扫描电子显微镜(SEM)、X射线衍射(XRD)、紫外-可见光漫反射光谱(UV-Vis DRS)等方法对样品进行了表征,考察了样品在300 W氙灯下的光催化制氢活性.研究结果表明微波辅助法所制备的样品产氢量为384μmol/(g· h),高于传统方法制备的样品,而且微波辅助法制备复合催化剂大大简化了制备步骤,缩短了时间.
关键词：HCa2TaNb2O10/(Pb1-xZnxS);微波辅助法;光催化;HCa2TaNb2O10/(Pb1-xZnxS);microwave-assisted method;photocatalysis
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26496.石化汇编-第659期
[石油加工、炼焦和核燃料加工业,化学原料和化学制品制造业] [2014-06-13]
报告从战略性分析、环境信息、竞争对手情报、资讯信息快报、市场行情与数据分析等几个方面对石油化工行业进行了分析评论。
关键词：石油化工；战略性分析；环境信息；竞争对手情报；资讯信息快报；市场行情
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26497.全球气凝胶市场报告（2014-2018年）
[化学原料和化学制品制造业] [2014-06-12]
Aerogel is a highly porous and lightweight solid polymer network with 95-99 percent gas content. Aerogel has low density, high thermal resistivity, and high strength-to-weight ratio. These unique properties make it viable for a number of applications in thermal, acoustic, and electrical insulators, thin film dielectrics, super capacitors, optical coatings, anti-reflective films.
关键词：气凝胶；瓦斯；多孔性；轻便固体聚合物网络
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26498.中国化工导报（2014年6月6日）
[化学原料和化学制品制造业,石油加工、炼焦和核燃料加工业] [2014-06-12]
On May 18, the National Development and Reform Commission, the National Energy Bureau and the Ministry of Environmental Protection jointly released “Work Program for Strengthening Pollution Prevention and Control by Energy Industries” (“Program”). This Program includes short- and midterm quantitative objectives of “haze” control by energy industry.
关键词：乙烯乙烷；丙烯酸；油漆；涂料；成品油
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26499.全球营养化妆品市场报告（2014-2018年）
[化学原料和化学制品制造业] [2014-06-12]
The term "Nutricosmetics" is a result of the fusion of "Nutraceuticals" and "Cosmeceuticals." They are ingestible natural health products that enhance the function and appearance of an individual's skin, nails, and hair. They are a range of beauty supplements and functional foods and beverages that claim to contain active ingredients and nutrients such as botanical actives, sterol esters, lycopene, enzymes, proteins, minerals, and vitamins that enhance beauty and are beneficial to health. These products are, therefore, developed and marketed as beauty aids.
关键词：营养化妆品；保健食品；药妆品；活性成分；营养物质
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26500.全球香精香料市场报告（2014-2018年）
[化学原料和化学制品制造业] [2014-06-12]
Flavors and fragrances mainly comprise a class of compounds such as esters, alcohol, acids, lactones, aldehydes, and ketones. The Global Flavors and Fragrances market consist of flavor blends, fragrance blends, essential oils, and aroma chemicals. It is expected to witness healthy growth during the forecast period, mainly because of the demand from companies that manufacture food and beverages, perfumes, cosmetics, toiletries, and household products.
关键词：香精香料；香料；精油；芳香化学品；制造食品
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