以硅藻土固载的过氧乙酸为氧化剂的吡唑啉脱氢芳构化反应研究

由吡唑啉脱氢芳构化去制备呲唑的氧化反应是被研究的.研究工作中用硅藻土固载的过氧乙酸作为氧化剂 ,对它在吡唑啉脱氢芳构化反应中的作用进行了探索,结果表明由过氧乙酸被硅藻土固载而构成的氧化剂组合,是一类有效而适用的脱氢芳构化试剂.     

分析纯盐酸生产中残渣偏高的原因及控制措施

本文对在设备及设备参数确定的条件下，分析纯盐酸生产中残渣偏高的原因进行了分析探讨。结果表明，进塔原料的流量及蒸馏塔釜的温度是影响成品残渣偏高的主要因素，并提出了相应的控制措施。     

糖和硼对笋瓜花粉管生长的影响

植物花粉管的生长离不开糖和硼,采用含一定量硼酸的不同浓度的蔗糖溶液和含一定量蔗糖的不同浓度的硼酸溶液处理笋瓜花粉,结果表明,适于笋瓜花粉管生长的蔗糖和硼酸的最佳浓度分别为15％和0.2‰。     

用马铃薯废渣制取草酸的工艺研究

本文论述了利用马铃薯废渣制备草酸的工艺方法，在确定工艺路线及条件之后，采用正交试验设计方法进行最佳工艺条件的确定，获得比较好的结果。     

GL—菌毒净的制备和性能研究

应用异氰脲酸（ＣＡ）、氢氧化钠、氯气作原料，采用连续法制备出三氯异氰脲酸（ＴＣＣＡ），并加入含羧基的芳香酸和丁二胺甲撑基膦酸作为稳定剂和螯合剂，将它们配成ＧＬ－菌毒净。我们发现，这种杀菌消毒剂具有良好的稳定性和杀菌消毒性能。     

固定pH滴定法测定Vc片中抗坏血酸

本文采用固定ｐＨ滴定法测定Ｖｃ片中抗坏血酸的含量，其结果与药典法测定值一致，ＲＳＤ≤１．９％，回收率在９８．６％￣１１．６％之间，实验结果表明，该方法操作简便，分析快速，结果准确。     

介孔材料-酸性红12染料分子体系动力学模型的建立和模拟

以酸性红12作为多苯环长链发色有机物的代表,通过对有效扩散系数的测定,确定其在介孔材料颗粒体上的吸附等温式和平衡接近率随时间变化的关系.利用非稳态扩散传质与非稳态热传导过程类比速率方程相似的特点,应用Peterson的热传导近似公式,用计算机求解超越方程,得到了酸性红12在介孔复合材料颗粒内的有效扩散系数并进行了拟合验证,得出该传质过程的主要作用力类型.     

Functions of fatty acid binding proteins

Summary Cytosolic fatty acid binding proteins (FABP) belong to a gene family of which eight members have been conclusively identified. These 14–15 kDa proteins are abundantly expressed in a highly tissue-specific manner. Although the functions of the cytosolic FABP are not clearly established, they appear to enhance the transfer of long-chain fatty acids between artificial and native lipid membranes, and also to have a stimulatory effect on a number of enzymes of fatty acid metabolism in vitro. These findings, as well as the tissue expression, ligand binding properties, ontogeny and regulation of these proteins provide a considerable body of indirect evidence supporting a broad role for the FABP in the intracellular transport and metabolism of long-chain fatty acids. The available data also support the existence of structure- and tissue-specific specialization of function among different members of the FABP gene family. Moreover, FABP may also have a possible role in the modulation of cell growth and proliferation, possibly by virtue of their affinity for ligands such as prostaglandins, leukotrienes and fatty acids, which are known to influence cell growth activity. FABP structurally unrelated to the cytosolic gene family have also been identified in the plasma membranes of several tissues (FABP_pm). These proteins have not been fully characterized to date, but strong evidence suggests that they function in the transport of long-chain fatty acids across the plasma membrane.     

以丙烯酸-β-羟乙酯与丙烯酸为原料制备二丙烯酸乙二醇酯

以丙烯酸（AA）与丙烯酸-β-羟基乙酯（HEA）为原料，经酯化反应合成出了二丙烯酸乙二醇酯（EGDA）。以EGDA得率为考核指标，对催化剂种类及用量、阻聚剂种类及用量等合成条件进行了实验研究与优化，发现对于该反应，环己烷是比苯更优的带水剂，反应宜采用减压降温的方法抑制聚合的发生。对比分析表明，采用该方法制备EGDA的得率比直接酯化法、酯交换法更高，且产品的品质更好。