一、前言关于紫外吸收检测器在气相色谱中的应用,Kaye早在1961年就进行了研究,近年来又有新的进展。1980年Novotny等报导了紫外吸收检测器在毛细管柱气相色谱中的应用。我们用气相色谱填充柱与固定波长(254nm)紫外吸收检测器进行了联用的研究,并设计了长光路反射吸收池,可提高灵敏度约5倍。检测器对萘的最小检出限为18×10~(-9)g,敏感度为2.9×10~-(10)g/ml。二、仪器装置仪器装置流程示于图1。色谱仪为自制,其柱出口的温度有专门的恒温装置,并可与检测器方便地联接,紫外检测器采用上海分析仪器厂生产的150型高效液相色谱仪的附件,其光源为低压汞灯,光源的散射 I. Preface As for the application of UV absorption detector in gas chromatography, Kaye studied as early as 1961 and made new progress in recent years. In 1980, Novotny et al. Reported the application of ultraviolet absorption detector in capillary gas chromatography. We used a gas chromatography packed column with a fixed wavelength (254nm) UV absorption detector and used a combination of long optical path reflectance absorbers designed to increase sensitivity about 5-fold. The detection limit of naphthalene was 18 × 10 ~ (-9) g and the sensitivity was 2.9 × 10 ~ (10) g / ml. Second, the instrument device The device flow chart shown in Figure 1. Chromatograph for home-made, the column outlet temperature has a special thermostat device, and can easily connect with the detector, UV detector using Shanghai Analytical Instrument Factory 150 high performance liquid chromatography attachment, the light source of low-pressure mercury Light, light scattering