研究了以大孔强碱阴离子交换树脂为催化剂，氯乙醇和三甲胺为原料，合成氯化胆碱的新工艺。
A new process to synthesize choline chloride by using macroporous strong basic anion-exchange resin as catalyst and chloroethanol and trimethylamine as raw materials is introduced.
由云南镇雄采取新鲜生漆，经丙酮除去漆酚，沸水浴提取，三氯醋酸—正丁醇除杂蛋白，乙醇沉淀。
The urushiol in the extract was removed from lacquer by autoae. The Polysaccharide btained from acetone powder were extracted by boiling water bath.
免冲洗洗手液主要杀菌成分为乙醇与三氯均二苯脲，为了解其杀菌效果和毒性，采用悬液定量杀菌试验和动物试验进行了试验观察。
Results: The average killing rates of Escherichia coli and Staphylococcus aureus in suspension exposed to the hand-washing solution exempt from rinse containing 41.
以对甲氧基苯甲醛、三氯甲烷为原料，相转移催化羰基加成法合成了对甲氧基苯乙醇酸。
Based on the principle of phase transfer catalysis, 4-methoxy-phenylhydroxy-acetic acid was synthesized by the carbonyl addition reaction of 4-methoxybenzaldehyde.
以对甲氧基苯甲醛、三氯甲烷为原料，相转移催化羰基加成法合成了对甲氧基苯乙醇酸。
Based on the principle of phase transfer catalysis, 4-methoxy-phenylhydroxy-acetic acid was synthesized by the carbonyl addition reaction of 4-methoxybenzaldehyde.
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