一、引言自从James和Martin首次发表“气液色谱法”以来,经过短短的十三年气相色谱法已获得了飞速的发展。与经典色谱法相比,它具有高效分离、高灵敏检定、准确、快速和试样量小等显著特点,故不仅广泛地应用于复杂混合物的分离和鉴定,并已成为分析微量杂质的有力工具。随着塑料、合成橡胶和合成纤维等高分子工业的发展,由于痕量杂质也会影响聚合,须得提供高纯度的单体,因此微量杂质的分析对高聚物材料的发展起着重要作用。大气沾污,空气排气等有害杂质的测定则对于防止事故发生也具有极为重要意 I. INTRODUCTION Since James and Martin first published “Gas-liquid Chromatography”, rapid gas chromatography has been developed in just thirteen years. Compared with classical chromatography, it has the remarkable characteristics of high efficiency separation, high sensitivity, accuracy, rapidness and small sample size. It is not only widely used in the separation and identification of complex mixtures, but also has become a powerful tool for the analysis of trace impurities. With the development of the polymer industry such as plastics, synthetic rubbers and synthetic fibers, the analysis of trace impurities plays an important role in the development of high polymer materials because trace impurities also affect the polymerization and must provide high purity monomers . Atmospheric pollution, air exhaust and other harmful impurities in the determination of the accident is also of great importance