几种挥发性有机酚的离子淌度谱测定  

Ion Mobility Spectra of Some Phenols

作　　者：郭岩[1] 陆妙琴[1] 龙耀庭 

机构地区：[1]中国科学院生态环境研究中心,北京100085

出　　处：《分析化学》1997年第8期951-954,共4页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金

摘　　要：应用离子淌度谱仪在负高压方式下测得苯酚、２－氯代酚、２，４－二氯代酚及五氯代酚的折合淌度值分别为２．１２、２．０１、１．９３、１．７４ ｃｍ２Ｖ－１ｓ－１，检测限分别为 １．０、０．１、０．５、０．５μｇ／Ｌ，２－氯代酚、２，４－二氯代酚的二聚体的折合淌度值分别为 １．６０、１．４７ｃｍ２Ｖ１ｓ１，并对苯酚、２－氯代酚和２，４－二氯代酚的混合物进行了分析测定，并讨论了淌度值与分子量、分子形状之间的关系。The negative ion mobility spectra of phenol, 2-chlorophenol, 2,4-dichlorophenol and pentachlorophenol are reported. Their reduced mobility values are 2. l2, 2. 0l, 1. 93, 1. 73 cm2/(V·s), respectively. Their minimum detection limits are l. 0, 0. 1, 0. 5, 0. 5 μg/L, respectively. The reduced mobility values of the dimers of 2-chlorophenol and 2,4- dichlorophenol are 1. 60, 1. 47 cm2/(V·s ). The analysis of a mixture of phenol, 2- chlorophenol and 2, 4-dichlorophenol is achieved by IMS. The relationships between the reduced mobility value and molecular weight or size are discussed.

关 键 词：离子淌度谱法 酚类化合物 有机酚 挥发性 IMS 

分 类 号：O625.311[理学—有机化学] X132[理学—化学]