一、前言目前,色谱仪使用已十分广泛,它不单在石油化工方面是不可缺少的分析工具,而且在环境保护、三废治理、生物学、医学卫生、制药、食品以及商品检查等方面都得到了广泛的应用。国内每年投入使用的色谱仪数以千台增加。许多从事应用的部门都在自制色谱仪。他们在使用和制造气相色谱仪器方面,积累了许多成功的经验。但是,有时我们由于对仪器的 I. Introduction At present, the chromatograph is widely used. It is not only an indispensable analytical tool in the field of petrochemical industry, but also obtained in environmental protection, waste management, biology, medical and health, pharmaceutical, food and commodity inspection Wide range of applications. There are thousands of chromatographs put into use each year in China. Many applications in the department are homemade chromatograph. They have accumulated many successful experiences in the use and manufacture of gas chromatographs. However, sometimes we are due to the instrument