青稞中β-葡聚糖的水法提取及性质分析

以水法分离纯化藏青稞β—葡聚糖，探索了一种高效简便的β—葡聚糖提取方法以适应生产的需要．对所获多糖进行了相关的性质分析，纸层析、紫外吸收光谱分析的和红外光谱结果表明，该多糖为单一多糖，还由扫描电镜对其形态作了观测．     

鸡脑P物质的制取及分析

P物质是一种广泛存在于哺乳动物中枢及外周神经元系统中的11肽。采用有机溶剂分级法提纯鸡脑P物质,紫外分光光度计测定含量,聚酰胺薄膜层析分析氨基酸组成。结果表明:鸡脑P物质的氨基酸组成和N端氨基酸与资料中完全一致。     

氧电极催化剂的组成对H2O2分解活性的研究

以CuCl2和FeCl3原料，采用NaOH溶液中沉淀，并将沉淀物在空气中加热、氧化一还原、脱水的方法，制备不同Cu：Fe氧化物的催化荆(X=0．5、1．0、1．5、2．0、2．5、3．0)，分别以各催化剂在其他条件相同的情况下，催化分解H202，测定各反应的速率常数。并进行对比，以K对X作图表示活性与配比的关系。得出Cu，Fe3-xO4 Cu：Fe(X=2．5)时催化活性最高。     

CHX抗栓注射液对大鼠优球蛋白溶解时间的影响

目的　研究CHX抗栓注射液对大鼠血液纤维蛋白溶解活性的影响 .方法　给大鼠每d腹腔注射CHX抗栓注射液 ( 1,5 ,10mg/kg) ,连续 7d ,实验采用优球蛋白溶解法 ,观察从凝块形成到凝块完全溶解的时间ELT .结果　CHX抗栓注射液可明显缩短给药组大鼠优球蛋白溶解时间 ,NS组 ( 98.11± 7.6 3)min ,给药组 ( 39.83±5 .98)min .结论　CHX抗栓注射液对大鼠血液纤维蛋白溶解活性有非常明显的增强作用     

机械化大罐发酵生产福建老酒挥发性香味物质的分析

采用色谱－质谱联用分析法，以吹扫捕集与溶剂萃取相结合，对机械化大罐发酵工艺生产的鼓山牌福建老酒的挥发性香味成分进行剖析，以初步揭示挥发性香味成分与福建老酒风格相关联的确切成分，进而为完善机械化大罐发酵生产工艺提供科学依据。     

爱因斯坦和玻尔的科学创新方法论原则

本文在深入研究、比较爱因斯坦和玻尔科学创新方法及其特点的基础上,揭示了科学创新活动应当遵循的方法论原则,即哲学思想渗透原则、逻辑思维与非逻辑思维相结合原则和思想实验与物质实验相结合原则。     

Cryptomelane（KxMn8-xO16）： Natural active octahedral molecular sieve（OMS-2）

The Xiangtan manganese deposit (XTM) used to be considered a supergene oxide manganese ore in South China. We reported a new identification of the naturally outcropping cryptomelane by examining the physical, chemical and structural features of the XTM supergene oxide manganese ore. The MnO2 content was over 90%, K2O more than 3%, and water from 2.2%-3.1% which is similar to one in zeolite. The cell parameters of the cryptomelane were given as a0 = 0.9974 nm, b0 = 0.2863 nm, c0 = 0.9693 nm and β= 91.47°. There was a larger pseduotetragonal tunnel in the natural cryptomelane that was formed by [MnO6] octahedral double chains with aperture of 0.462×0.466 nm2, filled with K cations resulting in some Mn3+ substituting for Mn4+ to balance the negative charges of structure. The finding is important not only for prospecting manganese resources in South China, but also in application of octahedral molecular sieve of natural cryptomelane as that developed in the tetragonal molecular sieve of natural zeolite o     

Inorganic chemical composition and source signature of PM2.5 in Beijing during ACE-Asia period

Aerosol samples for PM2.5 were collected in Beijing for 38 consecutive days from March to April 2001 using an IMPROVE Sampler. Concentrations of 20 elements in PM2.5 were determined using a PIXE method. Results show that the average mineral dust concentration of PM2.5 was 14.6 Ilg/m3 during the observation period. On the sand-dust event days of March 21 and April 10, dust PM2.5 mass concentrations were 62.4 and 54.1 μg/m^3, respectively.These demonstrate that fine particle pollution by dust event in Beijing was very severe. The enrichment factors of S and Cu reached minimums on the dusty days and were high on the non-dusty days. It is considered that enrichment factors of elements in PM2.5, which are associated with human activities, can probably provide an effective method to distinguish local sources from external sources of dust. Factor analysis on the chemical composition in PM2.5 shows that sources of crustal matters, anthropogenic emission, and oil combustion contributed to PM2.5 levels in air in the springtime of 2001 in Beijing.     

Progress in the study of tectophysicochemistry

Tectophysicochemistry is a research area that deals with the interrelations between physical and chemical changes of crustal materials caused by tectonism. A given tectonic force may be resolved into two parts: homogeneous stress and differential stress. Homogeneous stress refers to isotopic pressure, which is superimposed on the original pressure and affects the equilibrium of various chemical reactions. It is also a factor that influences petrogenesis,metallogenesis and metamorphism. Differential stress is commonly produced when external forces act on a given solid body. It may cause deformation of crustal materials and generate various kinds of structural features. Tectophysicochemistry pays special attention to pressure, temperature and other physicochemical conditions produced or induced by tectonism and studies the influences of additional tectonic parameters on various chemical equilibria, so it gradually develops into an independent area of science.     

铂(II)与胺类配合物的合成、晶体结构和抗肿瘤活性研究

研究铂(II)与三种胺类配合物的合成、晶体结构和体外抗肿瘤活性,化合物1的X-射线单晶结构分析表明:这是一个很少见的具有四方锥几何构型的铂(II)配合物,顺式平面四方形配位的铂的轴向上有第5个配位原子。其抗肿瘤活性实验显示3个配合物对几种研究的癌细胞都有较强的抑制作用。