8-羟基喹啉-5-磺酸-溴代十六烷基三甲铵荧光法测定微量镓

研究了在溴代十六烷基三甲铵存在下，８－羟基喹啉－５－磺酸与镓的络合反应。λｅｘ＝３８８ｎｍ，λｅｍ＝５０６ｎｍ。镓含量在０～０．５６ｍｇ／Ｌ范围内服从比耳定律，对含镓量０．００２７％的矿样平行测定７次，相对标准偏差为１．９％，回收率为９７．３％～１０２．０％。     

桉叶油挥发性成份的研究

采用水蒸汽蒸馏收集桉叶精油,经气相色谱/质谱/计算机联用检测和气相色谱保留指数法,分析鉴定出含量较多的17种化合物,其主要成份为1,8—桉树脑,α—蒎烯,香芹酮等。     

中南区7—22岁学生大脑机能某些特征的研究

本文使用80.8神经类型表为心理测量工具,对中南五省7～22岁学生约2万个样本进行测试,以探讨研究当代青少年大脑机能的某些发展特征,同时,为证实80.8神经类型量表的效度并为青少年运动选材提供参考常模。     

柏木基甲醚的合成研究

柏木基甲醚是以天然柏木醇为原料,经甲基烷基化制得。甲基化方法很多,本文采用新的甲基化方法,使产品的质量、产量达到了满意的效果。     

Biological activity of precocene analogues onLocusta migratoria

Summary Structure-optimization studies of C-5-C-8-substituted precocene (P) analogues revealed that 1) compounds disubstituted asymmetrically at C-6, C-7 had an anti-allatal effect only if the C-6 side-group was shorter than that at C-7, 2) in the case of C-5, C-7 disubstitution, activity was enhanced by Me at C-5 whereas MeO caused inactivity. Effects of various other substitutions are also discussed.     

琥珀酰CCK—7对小鼠记忆的影响

琥珀酰ＣＣＫ－７是对ＣＣＫ－８进行分子改构后获得的一种新药，本实验以一次被动回避反应模型观察比较了这种改构物与ＣＣＫ－８对小鼠记忆巩固过程的影响，同时探讨了ｓｕｃ－ＣＣＫ－７影响记忆过程的剂量－效应关系以及时相－效应关系。结果表明：（１）ｓｕｃ－ＣＣＫ－７促进记忆的有效剂量为１００－２００μｇ／ｋｇ，小于１００μｇ／ｋｇ无明显效应。（２）ｓｕｃ－ＣＣＫ－７增强小鼠记忆的效应在电击后４８ｈ最明显，７     

Sex pheromone blend of the codling moth,Cydia pomonella: Evidence for a behavioral role of dodecan-1-ol

Summary Pheromone glands and effluvia of the codling moth female containE-8, E-10-dodecadien-1-ol as main component, accompanied by its geometric isomers, the corresponding acetate and aldehyde (both in gland extracts only),E-9-dodecen-1-ol and saturated alcohols of 10 to 18 carbons. Dodecan-1-ol as the most abundant secondary component (about 30% of the female blend) acts in the wind tunnel by widening the dose range over which codling moth males are optimally attracted toE-8, E-10-dodecadien-1-ol.This research was supported by the Swiss National Science Foundation. We thank W. Riggenbach for supplying moths and T. Wildbolz, P. Charmillot and M. Tóth for conducting field trials.     

基于RCC及粗糙模型的模糊地理对象拓扑关系表达

在粗糙集的基本概念上定义了二维离散空间中的粗糙区域和粗糙模型,基于粗糙模型描述了二维离散空间中的模糊地理对象,并给出了粗糙区域的类型。在RCC-D-8的基础上,依据模糊地理对象拓扑关系之间的概念临近及拓扑约束关系,研究得出了二维离散空间中简单模糊地理对象之间的599种全拓扑关系。