Over the past years, a variety of new types of Ion Mobility Spectrometry (IMS) analyzers have been developed (e.g., periodic focusing DC ion guide, segmented quadrupole drift cell, multistage IMS, field asymmetric IMS and transient wave ion guide). High resolution IMS has been mainly restricted to the use of long IMS cells and low temperature devices. We have recently introduced the Trapped Ion Mobility Spectrometer (TIMS) for the analysis of complex mixtures without the need for pre-fractionation. When coupled to a mass spectrometer (TIMS-MS), this device permits fast, post-ionization, gas-phase separation by taking advantage of the high mobility separation prior to the mass analysis, thus reducing the chemical noise and increasing the dynamic range. In the present work, examples of TIMS-MS separation for complex heteroatom hydrocarbons mixtures (e.g., crude oils) will be described.

Analysis of complex mixtures of heteroatom hydrocarbons using TIMS-MS

245th National Meeting (2013)

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