Mass Spectrometry of Ionic Liquids: ESI-MS/MS Studies

Gaurav R. Gupta1, Ganesh R. Chaudhari2, Preeti A. Tomar3, Yogesh Gaikwad4, Azad Rameez4, Girish H. Pandya4, Govinda P. Waghulade5 and Kesharsingh J. Patil1,*

1School of Chemical Sciences, North Maharashtra University, Jalgaon-425 001, India

2Department of Chemistry, M.J. College, Jalgaon-425 001, India

3JSPM’s Rajarshi Shahu College of Engineering, Pune-411 027, India

4Anacon Laboratories, Nagpur-440 001, India

5Department of Chemistry, D.D.N. Bhole College, Bhusawal-425 201, India

*Corresponding author: E-mail:


Herein, we reported our studies related to structural elucidation and gas-phase fragmentation patterns of the imidazolium and pyridinium based ionic liquids, using a positive ion electrospray ionization triple quadrupole mass spectrometry. Ionic liquids mainly imidazolium/pyridinium/alkylammonium salts, possess properties due to which there are many applications from the point of view of green chemistry. The recorded mass spectral patterns are presented and possible pathways for fragmentations are suggested. The mass spectrum of tetrabutylammonium bromide and its fragmentation pattern is discussed since we used this compound as a template in the synthesis of ionic liquids. Our analysis also suggests possibilities of associations of ions in the form of C2A+ species in vapour phase for the studied ionic liquids.


Ionic liquids, Electrospray ionization mass spectrometry, Tetrabutylammonium bromide, Triplet interactions.

   View Article PDF File Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.