色谱2018，Vol.36Issue(6)：557-565,9.DOI:10.3724/SP.J.1123.2018.02025
阳离子取代基对离子液体气相色谱固定相保留性能的影响
Effects of substituted functional groups of cations on retention performance of ionic liquid stationary phases in gas chromatography
摘要
Abstract
Thirteen stationary phases comprising a polyvinyl imidazolium ionic liquid (IL)in which cations containing propyl,butyl,nonyl,ethyl-phenyl,or cyan methyl functional groups are paired with bis(trifluoromethanesulfonyl)imide ([NTf2]-),trifluoromethanesulfonate ([TFO]-),and hexafluorophosphate ([PF6 ]-)were synthesized and directly coated inside capillary fused silica tubing for use in gas chromatography. The relationship between the struc-ture of the ILs and the McReynolds constant,thermal stability,and retention behavior of the test compound on the prepared fused silica columns was examined and discussed. The influence of the cationic substituents on retention performance of stationary phases was also studied. The variation in the retention index of the test compound with temperature was also investigated. The results indicated that the synthesized ILs have strong polarity,and that their retention per-formance is closely related to not only the properties of the cationic substituent but also the structure of the substituted groups and the anion. In the temperature range investigated,the variation in the retention index of the tested compounds was the same as that of conventional chromatographic stationary phases.关键词
气相色谱/阳离子取代基/保留性能/离子液体固定相Key words
gas chromatography (GC )/cationic substituents/retention performance/ionic liquid (IL)stationary phases分类
化学化工引用本文复制引用
王仲来,王云峰,石恩林,俞文,张露露,俞发荣..阳离子取代基对离子液体气相色谱固定相保留性能的影响[J].色谱,2018,36(6):557-565,9.基金项目
甘肃省自然科学基金项目(1606RJZA165) （1606RJZA165）
兰州市科技计划项目(2015-3-96) （2015-3-96）
甘肃省高效协同创新科技团队项目(2016C-09).Natural Science Foundation of Gansu Province (No.1606RJZA165) （2016C-09）
Lanzhou Science and Technology Plan Project (No.2015-3-96) （No.2015-3-96）
Gansu High Efficiency Collaborative Innovation Technology Team Project (No.2016C-09). （No.2016C-09）
