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Updated: May 20, 2026

Whole-body Mass Spectrometry Imaging by Infrared Matrix-assisted Laser Desorption Electrospray Ionization (IR-MALDESI)
Published on: March 24, 2016
Instrumentation and software for mass spectrometry imaging--making the most of what you've got
Paul J Trim1, Marie-Claude Djidja2, Tasneem Muharib3
1Lysosomal Diseases Research Unit, SA Pathology at Women's and Children's Hospital, 72 King William Road, North Adelaide, South Australia 5006, Australia.
Abstract:
Whilst it might be desirable to be able to purchase an up to date mass spectrometry platform and dedicate it to mass spectrometry imaging, this is not the situation initially for many laboratories. There are a variety of methods by which existing mass spectrometers can be upgraded/adapted to perform mass spectrometry imaging using MALDI, DESI or LAESI as the means of generating ions. The focus of this article is on relatively low cost adaptations of existing instrumentation with suggestions made for performance enhancements where appropriate. A brief description of attempts to perform SIMS imaging on quadrupole time of flight mass spectrometers is also given. The required software is described with particular emphasis on freeware packages which can be used to display/enhance data. Requirements for data pre-processing prior or statistical analysis are discussed along with the use of MATLAB® for the analysis itself.
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