Isolation, Purification and Identification of the Spermicidal Active Compound from Neem Oil

来源 :高技术通讯:英文版 | 被引量 : 0次 | 上传用户:Taosnowball
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Bioassay-directed fractionation of the chloroform extract of the neem oil has resulted in the isolation of one new esters derivatives named 2-Octadecanoic acid-4-Palmitic acid-2,4-Pentanediyl ester (compound 1). Its structure is deduced on the basis of sp
其他文献
"以数据业务为主的网络建设,与以前电路域网络完全不一样,如何进行端到端质量评估,对网络问题进行准确定位和优化,有大量的工作需要做,也需要大量的新工具和新方案来支撑。"在
通过具备市场竞争力的产品与服务,完善的"营销服"市场体系,2013年上半年,烽火通信进一步了巩固与海外各重点运营商的合作关系,取得了超过50%的增长业绩。
A new extended meta model of traceability is presented. Then, a formalized fine-grained model of traceability is described. Some major issues about this model,
This paper presents a comparison study of workspace and dexterity of two Tricept units for Reconfigurable Parallel Kinematic Machines (RPKMs). The modular leg o
Many industrial process systems are becoming more and more complex and are characterized by distributed features. To ensure such a system to operate under worki
Many packet communication networks carry several classes of traffic,each with its own service characteristics. The packet arrival processes from each source are
Two large molecular weight fucoidan fractions F-A and F-B were obtained by water extraction and anion-exchange chromatography and then L-A and L-B with low mole
经济的发展离不开能源的利用,最为世界上第二大经济体,在国家经济的建设过程中对能源的利用正在不断的增强,面对我国地形复杂、地域辽阔的实际地理特点,在国内进行石油的开采运输
绿色节能建筑设计,就是指在设计建筑方案时,以绿色生态为目标,将可持续发展作为施工的第二目标。在建筑工程的施工项目中,利用高新技术,来降低在施工中产生的能源损耗,并回收
人们使用漏斗把液料灌入容器时,总有液料从勺、瓢等盛液工具的外壁上滴漏、流淌(液体的附壁效应)在地上.不仅浪费资源,还污染环境.如我们经常看见粮店里油桶旁,总是特地放置