研究出一种改进的毛细管分流进样器，设计了一种新型螺旋进样内衬管。使分流进样的重复精度有显著提高，沸点歧视效应减小，色谱峰尾尖锐，使毛细管色谱柱的高分离效能得以充分发挥。对４种常用的进样内衬进行了考察，得到了有重要实用意义的结果，并从理论上解释了与传统观点相悖的实验现象，深化了对分流进样动态过程的理解。 An improved capillary splitter was developed to design a new spiral-injection liner. So that the shunt injection significantly improved the repeatability, the boiling point discrimination effect decreases, sharp peak tail, the high performance of capillary column to give full play. The four kinds of commonly used injection linings were investigated. The results were of important practical significance. The experimental phenomena that contradicted the traditional view were explained theoretically, and the understanding of the dynamic process of shunt injection was deepened.