Infl uence of structural features o n ion mo bility spectra of Sub stituted Benzaldehyde is omers at atmospheric pressu re and different te mperature

The term ion mobility s pectrometry (IMS) refers to the principle methods an d instrumentation for characterizin g chemical substances on the basis of velocity of gas-phase ions in an electric field [۱]. Usu ally recognizing of isomeric compounds from each other is difficult and needs s pecial and e xpensive lab oratory devices [۱, ۵]. IMS permits the rapid an d simple determinatio n of these c ompounds. This instrument works at atmosph eric pressure therefore the experiments are d one very simple with this metho d in compare with other instruments such as mass spectrometry. The aim of this work is identification of som e benzaldehyde substituted isomers by ion mobility spectrometry and inve stigation t he temperature and the drift gas composition on ion mob ility spectr a of these c ompounds in order to find the optimum con dition for identification of them from each other by io n mobility spectrometry.

کلیدواژه ها:

Ion mobility spec trometry ، S tructural Isomer ، Substituted benz aldehyde Isomers ، Temperature Dependence.