安息香缩合反应的影响因素

安息香缩合反应是重要的有机化学实验,影响实验的因素较复杂。本文通过反应温度、反应时间、pH、反应物料的投入方式等对安息香合成的影响进行了探讨。实验结果表明：反应温度、反应时间、pH是影响反应的重要因素,而反应前是否对反应物进行冷却以及苯甲醛与NaOH溶液的投料顺序对反应的影响不大。     

磁性氟尿嘧啶壳聚糖微球的制备及其释药性能

磁性氟尿嘧啶壳聚糖微球的制备及其释药性能;氟尿嘧啶;壳聚糖;磁性微球;缓释     

松节油催化水化混合物的气相色谱分析

In industry,terpineol is obtained from catalytic hydration of turpentine oil. The products in this reactionare very complicated so that it is difficult to monitor the reaction process. By using GC with PEG-20M col-umn under temperature programnung condition,the author analysed the hydrated mixtures of turpentine oil. The separation of isomers of turpentine oil or terpineol and the precision of quantitative analysis are good.