共搜索到1696条信息，每页显示10条信息，共170页。用时：0小时0分0秒511毫秒
of the self-assembled coating. Key words: self-assembled coating; particle size; gel permeation chromatography; silane; corrosion resistance 1 Introduction Due to the unique chemical... so far. In this work, the relative molecular mass and particle size of macromolecule in hydrolyzed silane solutions were determined by gel permeation chromatography (GPC) and laser particle size......
-performance liquid chromatography using eluents containing hydroxypropyl-beta- cyclodextrin in stereoselective skin permeation study [J]. Journal of Chromatography B, 2006, 843(2): 289-294. [13] SPENCER B J... acid by cyclodextrin-modified reversed phase high-performance liquid chromatography MAN Rui-lin(满瑞林)1, WANG Zhong-hui(王钟辉)1, TANG Ke-wen(唐课文)1, 2 (1. School of Chemistry and Chemical......
HOT DIPPING ALUMINIZED COATING AS HYDROGEN PERMEATION BARRIER M.Chini1,Z.Y.Yao2,Benamati3,A.Aiello3 (1.Department of Physics, University of Trento, 38100 Trento, Italy;2.China Institute of Atomic Energy, P.O.Box 275-51, Beijing 102413, China;3.ENEA CR Brasimone, 40032 Camugnano, Bologna, Italy) Abstract:The hydrogen permeation experiment of MANET II with hot dipping aluminized 1oat-ing......
Hydrogen permeation resistance and characterization of Si–Al and Si–Zr composite sol oxide coating on surface of zirconium hydrideMing Wu,Yang Chen,Jia-Qing Peng,Guo-Qing Yan,Yu-Pu Sun,Jian-Dong Zhang,Shun-Li Zhang,Li-Jun WangDivision of Rare Metals Metallurgy and Materials, General Research Institute for Nonferrous Metals摘 要:The hydrogen permeation......
兖州煤与石家庄减压渣油共处理的研究Ⅱ--甲苯可溶重质产物组成性质的变化规律 刘振宇1,朱继升1,阎瑞萍1,王志杰1,杨建丽1 (1.中国科学院) 摘要:借助棒状薄层色谱/氢火焰(TLC/FID),核磁共振(1H-NMR)以及凝胶渗透色谱(GPC), 对兖州煤与石家庄减压渣油单独处理及其共处理所得的甲苯可溶重质产物的组成,结构和分子量进行了研究, 得到了重质产物的组成性质随反应条件的变化规律. 结果表明, 共处理重质产物的组成性质并非煤与渣油各自加氢处理所得重质产物的简单物理混合, 而是在二者之间发生了化学反应, 说明通过共处理反应可从分子水平调配重质产物的组成性质, 为重质产物的优化利用......
......
......
and CH4 in the outlet gas were analyzed by a Varian CP3800 gas chromatography (GC) with a thermal conductivity detector (TCD). According to the law of mass conservation, the oxygen permeation flux, CH4... 120 and 100 mL/min, the oxygen permeation flux reached 16.48 mL/(min·cm2) at 875 °C, which was 16.96% higher than the uncoated BCFN membrane. Therefore, Bi26Mo10O69 porous layer on the air side......
Synthesis of Polycrystalline Nd∶YAG Nanopowders Used for Sintering Transparent Ceramics via Gel Combustion Hu Zhanggui1,Li Xianxue1,Li Jiangtao3 (1.Beijing Center for Crystal Research..., Nd∶YAG) powders were synthesized via a gel combustion method using nitrates and citric acid as starting materials. The evolution of phase composition and micro-structure of the powders were......
J. Cent. South Univ. Technol. (2007)04-0504-05 DOI: 10.1007/s11771-007-0098-9 Determination of volatile components in cut tobacco with gas chromatography–mass spectrometry and chemometric..., Xiangtan 411105, China) _____________________________________________________________________________ Abstract:Chromatography–mass spectrometry (GC–MS) was used to analyze the volatile components......
