Metal organic chemical vapour deposition (MOCVD) of bone mineral like carbonated hydroxyapatite coatings

For the first time, the MOCVD technique has been used to deposit carbonated hydroxyapatite onto Ti6AL4V substrates using volatile monomeric (liquid) complexes [Ca(beta-diketonate)(2)(L)] and P(OEt)(3).     

Diclobutrazol的合成及其生物活性研究

Ｄｉｃｌｏｂｕｔｒａｚｏｌ的合成及其生物活性研究张洪奎，廖联安，陈明德，叶向阳，郭奇珍（厦门大学化学系厦门３６１００５）关键词：Ｄｉｃｌｏｂｕｔｒａｚｏｌ，相转移催化，合成，生物活性Ｄｉｃｌｏｂｕｔｒａｚｏｌ（１）俗名粉锈清，是一种广谱内吸性杀菌剂，...     

煤的超临界醇萃取脱硫：Ⅲ.形态硫的变化

本文分别应用Ｍｏｓｓｂａｕｅｒ谱和ＸＰＳ（Ｘ射线光电子能谱）技术考察不同反应 条件下固体产物中的无机硫和有机硫的形态变化，结果表明；在超临界醇萃取脱硫过程中，黄铁矿硫的转化反应如下：ＦｅＳ２－ＦｅＳ＋Ｆｅ１－ｘＳ，，转化的数量和深度主要取决于反应温度。２７５℃时磁黄铁矿（Ｆｅ１－ｘＳ）形式为ＦｅＳ１．１０１，４５０℃时为ＦｅＳ１．０８５；有机硫基团中ＰｈＳＨ ，Ｐｈ２Ｓ和四氢噻吩较易脱除，Ｐｈ２Ｓ     

植物油的质谱分析：1.蓖麻油

运用一种植物油的系统分析方法测定蓖麻油的精细组分，这包括皂化，ＢＦ３－ＭｅＯＨ甲基化，ＧＣ－ＣＩＭＳ法测定脂肪酸碳链长度和不饱和度，ＡＭＰ衍生化，ＧＣ－ＥＩＭＳ测定不饱和脂肪酸的双链位置，分析了蓖麻油的十一种脂肪酸组分，有五个为未知组分，并测定了其中三个组分的双链位置。     

固-液相转移催化1,2,4-三唑N-烷基化的研究

本文研究了相转移催化条件下的1,2,4-三唑烷基化反应。评价了几种相转移催化剂,结果表明PEG是合适的固-液相转移催化剂。在相转移催化剂作用下,用不同的烷基化剂制备了一系列N-1取代的1,2,4-三唑,并对实验的结果进行了讨论。     

A New Application of Carbon Nanotubes Constructing Biosensor

Carbon nanotubes used for constructing biosensor was described for the first time. Single-wall carbon nanotubes (SWNTs) functionalized with carboxylic acid groups were used to immobilize glucose oxidase forming a glucose biosensor. The biosensor response can be determined by amperometric method at a low applied potential (0.40V).     

A SAPO-11 Silicoaluminophosphate Molecular Sieve with Stable Crystal Structure

A SAPO-11 silicoaluminophosphate molecular sieve with stable crystal structure was synthesized for the first time. After removing template by calcination, its crystal space group still retains Icm2 which the as-synthesized has. The catalyst deriving from the present SAPO-I 1 materials shows higher isomerization selectivity and higher paraffin hydroisomerization yield than those reported elsewhere.     

Organic Reactions in Ionic Liquids： An Efficient Method for the Synthesis of Phenacyl Esters by Reaction of Carboxylic Acids with α-Bromoacetophenone Promoted by Potassium Fluoride

An efficient method is reported for the synthesis of phenacyl esters by reaction of carboxylic acids with a-bromoacetophenone promoted by potassium fluoride in ionic liquid [Bmim]PF6, the yield of the reaction is almost quantitative and the products are essentially pure.     

~(13)C化学位移在达玛烷型皂甙结构研究中的应用

本文将迄今为止国内外文献报道的200余种达玛烷型皂甙类化合物的~(13)C化学位移按其结构特征分类整理,以原人参二(三)醇等为模型化合物,讨论了皂甙元结构变化引起的位移变化(Δδ_C)规律。     

四氯合锌酸二（正十二烷基铵）晶体相变机理的付里叶变换红外光谱研究

采用变温红外光谱研究了层结构标题配合物的固。固相变机理；相变主要与烷烃链和－ＮＨ＿３极性端基结构变化有关，主要来源于烷烃链的堆积结构和构象的有序。无序变化，同时伴有Ｎ－Ｈ…Ｃｌ氢键强度的降低，由于在高温烃链产生ＧＴＧ＋ＧＴＧ＇和临近端基的ＴＧ构象以及ＧＧ链段，链大量扭曲，形成了烷烃链的“熔化”态，发现同相和异相Ｃ－Ｃ伸缩振动频率对烷烃“链熔化”相变很敏感，可用于表征烷烃链的链长变化。