硫酸和三乙胺的反应产物是什么？ 环氧丙基三乙基氯化铵(EPTEAC)用途广泛，可以用作聚氨酯工业的催化剂，有较好的催化活性[1]。还可用作有机合成的中间体，如作为季铵型阳离子醚化剂，对淀粉、纤维素、木质素、。
求翻译，专业人士给翻译一下。 Abstract：objective to investigate serine protease and the determination of separation and purification methods of its activity.Methods to extract from soya-bean milk soybean trypsin inhibitor，with epichlorohydrin activation method with chitosan activation carrier，the carrier for immobilized enzyme，using affinity chromatography separation and purification serine protease and casein flat method to detect serine activity.Results separation got serine protease and measured the activity for U/mg.Conclusion this method for the separation and purification technology serine protease effect is better.
壳聚糖季铵化如何和环氧氯丙烷连接 请给我一些资料及一些建议谢谢 季铵化壳聚糖催化环氧丙烷与CO2合成碳酸丙烯酯 选自《石油化工》2007 年11 月36 卷11 期 摘要：采用化学。
