微流体法测量 L-谷氨酸介稳区宽度

摘要

介稳区宽度对于结晶过程的控制至关重要，而传统的介稳区测定方法操作比较复杂。利用微流体法研究了 L-谷氨酸在水溶液、乙醇-水溶液两种体系中的介稳区宽度。实验所得结果与文献中传统法测得的数据趋势相同，可以体现出 L-谷氨酸介稳区宽度的特征。研究表明微流体方法测定物质的介稳区是一种经济、可行的方法。%Metastable zone is vital for control of crystallization process,while the traditional measurement methods are relatively complicated in operation.Microfluidic method was used to measure the metastable zone of L-glutamic acid in water and ethanol-water solution.The result is consistent with that of using traditional methods,which gives important information on the charac-teristic of metastable zone width of L-glutamic acid.This research proves that microfluidic method is an economic and feasible method to measure the metastable zone.