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Burnum-Johnson, Kristin E.; Zheng, Xueyun; Dodds, James N.; Ash, Jeremy; Fourches, Denis; Nicora, Carrie D.; Wendler, Jason P.; Metz, Thomas O.; Waters, Katrina M.; Jansson, Janet K.; Smith, Richard D.; Baker, Erin S.
TrAC, Trends in analytical chemistry (Regular ed.), 07/2019, Letnik: 116Journal Article
Ion mobility spectrometry (IMS) is a widely used analytical technique providing rapid gas phase separations. IMS alone is useful, but its coupling with mass spectrometry (IMS-MS) and various front-end separation techniques has greatly increased the molecular information achievable from different omic analyses. IMS-MS analyses are specifically gaining attention for improving metabolomic, lipidomic, glycomic, proteomic and exposomic analyses by increasing measurement sensitivity (e.g. S/N ratio), lowering the detection limit, and amplifying peak capacity. Numerous studies including national security-related analyses, disease screenings and environmental evaluations are illustrating that IMS-MS is able to extract information not possible with MS alone. Furthermore, IMS-MS has shown great utility in salvaging molecular information for low abundance molecules of interest when high concentration contaminant ions are present in the sample by reducing detector suppression. This review highlights how IMS-MS is currently being used in omic analyses to distinguish structurally similar molecules, isomers, molecular classes and contaminant ions. •IMS is a widely used analytical technique providing rapid gas phase separations.•IMS coupled with MS is rapidly gaining attention for improving omic analyses.•IMS-MS is able to extract information not possible with MS alone in complex samples.•IMS-MS distinguishes isomers, isobars, molecular classes and contaminant ions.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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