毛细管气相色谱法测定医用聚氨酯纤维膜中N,N-DMAC残留

GC Study of N,N-DMAC in Medical Polyurethane Fiber Membrane

医用聚氨酯纤维膜先经过水浸提，然后通过气相色谱法定性定量分析聚氨酯纤维膜中N，N二甲基乙酰胺（DMAC）残留．并探讨分析其他提取物对测定的影响和评价。结果表明DMAC分离度良好，在线性范围内平均回收率大于90％，RSD为1．51％-2．08％（n=6）。此方法样品前处理简单、干扰少、重现性好、分离效率高，可做为医用聚氨酯纤维膜中残留物DMAC质量控制的方法之一。

Medical polyurethane fiber membrane after extraction with water, and then establish the determination of N, N dimethyl acetamide（DMAC）in Medical polyurethane fiber membrane by GC, and discuss the analysis and evaluation of other extracts of polyurethane fiber membrane for the determination of. DMAC in the linear range of the average recovery rate was more than 90%, the RSD 1.51%-2.08% （n=6）. This method is simple, fast, sensitive and accurate, and may serve as a mass control method for DMAC in Medical polyurethane fiber membrane.