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研究论文

Chemical assessment of mutagenicity of halohydeocarbon: FTIR spectrum characteristics of 2 phridone halohydrocarbon adduct

摘要：采用气相色谱付立叶变换红外光谱(GC/FTIR)对2 吡啶酮与11种卤代烃加合物的结构进行研究,并由GC/MS确证。结果表明,吡啶酮与卤代烃发生加合反应,在吡啶酮的环上氮位及环外氧位,生成两种互为同分异构体的加合物---氮位与氧位加合物,所有氧位加合物在气相色谱中的保留时间均比氮位加合物短。不同的卤代烃生成的氧位加合物对吸收峰影响不大,它们的红外光谱在1600-1280cm^-1之间,有位置及峰形相似的4个峰;其氮位加合物的红外光谱也相似,即由1690cm^-1附近的强峰与2个弱峰组成。氧位加合物与氮位加合物之间,红外光谱差别十分明显,容易区分。

Abstract：Abstract The adducts structure of 2 pyridone with eleven halohydeocarbons were characterized by GC/FTIR, and confirmed with GC/MS technique. The results showed that the adduction of 2 phridone with any halohydrocarbon produced two adduct isomers, at O site and N site, respectively. The retention time of all O adducts are shorter than that of N adducts in GC. The IR spectra are similar among the O adducts of different halohydrocarbons with 4 peaks between 1600 1280 cm^-1 while the N adducts with a special a strong peak near 1690 cm^-1 and two weak peaks at 1615 and 1540 cm^-1 . The O and N adducts differ significantly. So the 2 pyridone adduct tautomers are easy to separate and identify by GC/FTIR.