关键词: 气相色谱, 卤代烃, 模糊数学, 双柱系统, 智能定性

Analysis of multi-component samples by using two columns can provide more information than that of single column does. However, methodology of making full use of the information for peak identification is remained to be developed. This paper presents a peak identification method based on fuzzy set theory in combination with strategy of intelligence. Membership functions are defined to describe similarity of eluting peaks to the target components. Peak elution times and elution order on columns with different selectivity are used as primary data, relative concentrations of solutes are used for confirmation of the identified peaks. Some halohydrocarbons specified as toxic compounds in air are analyzed as verification of the method.

Key words: GAS CHROMATOGRAPHY, HALOHYDROCARBON, FUZZY MATHEMATICS, DUAL COLUMN SYSTEM