Matrix Assisted and/or Laser Desorption Ionization Quadrupole Ion Trap Time-of-Flight Mass Spectrometry of WO3 Clusters Formation in Gas Phase. Nanodiamonds, Fullerene, and Graphene Oxide Matrices

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Title in English	Mayuri Vilas Ausekar, Ravi Mawale, Pavel Pazdera, Josef Havel
Authors	AUSEKAR Mayuri Vilas MAWALE Ravi PAZDERA Pavel HAVEL Josef
Year of publication	2018
Type	Article in Periodical
Magazine / Source	Journal of the American Society for Mass Spectrometry
MU Faculty or unit	Faculty of Science
Citation
Web	https://link.springer.com/content/pdf/10.1007%2Fs13361-017-1874-x.pdf
Doi	http://dx.doi.org/10.1007/s13361-017-1874-x
Field	Analytic chemistry
Keywords	WO3 Clusters; Laser Desorption Ionisation; Quadrupole Ion Trap; TOF Mass spectrometry; Fullerene C60; Nano-diamonds; Graphene Oxide Matrices
Description	The formation of WxOy+/- clusters in gas phase was studied either by laser desorption ionisation (LDI) or matrix assisted laser desorption ionisation (MALDI). During LDI of WO3(s) the (WO3)n+/- (n = 1-7) clusters were detected. In MALDI, when using carbonaceous materials such as nano-diamonds (NDs), graphene oxide, and fullerene (C60) matrices, much higher clusters were generated with n up to 19. In addition to (WO3)n-· clusters also oxygen rich or deficient species were found in both LDI and MALDI (with total number of clusters exceeding one hundred). Carbonaceous materials like NDs, C60, and graphene oxide were used here for the first time as matrices for generation of (WO3)n+/- clusters in gas phase while new high mass clusters (WO3)n-· (n = 12-19 ) were observed.