Determination of drugs and drug metabolites by ion mobility-mass spectrometry: A review

2021 ◽  
Vol 1154 ◽  
pp. 338270
Author(s):  
Dylan H. Ross ◽  
Libin Xu
Separations ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 33
Author(s):  
Xavier Garcia ◽  
Maria del Mar Sabaté ◽  
Jorge Aubets ◽  
Josep Maria Jansat ◽  
Sonia Sentellas

This paper aims to cover the main strategies based on ion mobility spectrometry (IMS) for the analysis of biological samples. The determination of endogenous and exogenous compounds in such samples is important for the understanding of the health status of individuals. For this reason, the development of new approaches that can be complementary to the ones already established (mainly based on liquid chromatography coupled to mass spectrometry) is welcomed. In this regard, ion mobility spectrometry has appeared in the analytical scenario as a powerful technique for the separation and characterization of compounds based on their mobility. IMS has been used in several areas taking advantage of its orthogonality with other analytical separation techniques, such as liquid chromatography, gas chromatography, capillary electrophoresis, or supercritical fluid chromatography. Bioanalysis is not one of the areas where IMS has been more extensively applied. However, over the last years, the interest in using this approach for the analysis of biological samples has clearly increased. This paper introduces the reader to the principles controlling the separation in IMS and reviews recent applications using this technique in the field of bioanalysis.


2019 ◽  
Vol 58 (33) ◽  
pp. 11324-11328 ◽  
Author(s):  
Anneli Kruve ◽  
Kenji Caprice ◽  
Roy Lavendomme ◽  
Jan M. Wollschläger ◽  
Stefan Schoder ◽  
...  

2019 ◽  
Vol 21 (20) ◽  
pp. 10470-10476 ◽  
Author(s):  
Chenxi Li ◽  
Christopher J. Hogan Jr

Atmospheric pressure differential mobility analysis-mass spectrometry facilitates determination of nano-ion-neutral reaction rates approaching the collision controlled limit.


The Analyst ◽  
2011 ◽  
Vol 136 (19) ◽  
pp. 3911 ◽  
Author(s):  
Gushinder Kaur-Atwal ◽  
James C. Reynolds ◽  
Christopher Mussell ◽  
Elodie Champarnaud ◽  
Tom W. Knapman ◽  
...  

2021 ◽  
Author(s):  
RL Miller ◽  
SE Guimond ◽  
Ralf Schwoerer ◽  
Olga Zubkova ◽  
Peter Tyler ◽  
...  

© 2020, The Author(s). Despite evident regulatory roles of heparan sulfate (HS) saccharides in numerous biological processes, definitive information on the bioactive sequences of these polymers is lacking, with only a handful of natural structures sequenced to date. Here, we develop a “Shotgun” Ion Mobility Mass Spectrometry Sequencing (SIMMS2) method in which intact HS saccharides are dissociated in an ion mobility mass spectrometer and collision cross section values of fragments measured. Matching of data for intact and fragment ions against known values for 36 fully defined HS saccharide structures (from di- to decasaccharides) permits unambiguous sequence determination of validated standards and unknown natural saccharides, notably including variants with 3O-sulfate groups. SIMMS2 analysis of two fibroblast growth factor-inhibiting hexasaccharides identified from a HS oligosaccharide library screen demonstrates that the approach allows elucidation of structure-activity relationships. SIMMS2 thus overcomes the bottleneck for decoding the informational content of functional HS motifs which is crucial for their future biomedical exploitation.


Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2557 ◽  
Author(s):  
Yuqing Mu ◽  
Benjamin Schulz ◽  
Vito Ferro

Carbohydrate analyses are often challenging due to the structural complexity of these molecules, as well as the lack of suitable analytical tools for distinguishing the vast number of possible isomers. The coupled technique, ion mobility-mass spectrometry (IM-MS), has been in use for two decades for the analysis of complex biomolecules, and in recent years it has emerged as a powerful technique for the analysis of carbohydrates. For carbohydrates, most studies have focused on the separation and characterization of isomers in biological samples. IM-MS is capable of separating isomeric ions by drift time, and further characterizing them by mass analysis. Applications of IM-MS in carbohydrate analysis are extremely useful and important for understanding many biological mechanisms and for the determination of disease states, although efforts are still needed for higher sensitivity and resolution.


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