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Verfasst von:Oppenländer, Tobias [VerfasserIn]   i
 Gross, Jürgen H. [VerfasserIn]   i
Titel:Collision cross sections of large positive fullerene molecular ions and their use as ion mobility calibrants in trapped ion mobility mass spectrometry
Verf.angabe:Tobias Oppenländer, Jürgen H. Gross
E-Jahr:2024
Jahr:09 October 2024
Umfang:11 S.
Illustrationen:Illustrationen
Fussnoten:Gesehen am 01.04.2025
Titel Quelle:Enthalten in: Analytical and bioanalytical chemistry
Ort Quelle:Berlin : Springer, 2002
Jahr Quelle:2024
Band/Heft Quelle:416(2024), 28, Seite 6187-6197
ISSN Quelle:1618-2650
Abstract:Positive-ion laser desorption/ionization (LDI) of fullerenes contained in soot as produced by the Krätschmer-Huffman process delivers a wide range of fullerene molecular ions from C56+• to above C300+•. Here, the collision cross section (CCS) values of those fullerene molecular ions are determined using a trapped ion mobility-quadrupole-time-of-flight (TIMS-Q-TOF) instrument. While CCS values in the range from C60+• to C96+• are already known with high accuracy, those of ions from C98+• onward had yet to be determined. The fullerene molecular ions covered in this work have CCS values from about 200 to 440 Å2. The fullerene molecular ion series is evenly spaced at C2 differences in composition, and thus, small CCS differences of just 2.2-3.5 Å2 were determined across the entire range. Fullerene M+• ions may be employed as mobility calibrants, in particular, when very narrow 1/K0 ranges are being analyzed to achieve high TIMS resolving power. In addition, due to the simple elemental composition, M+• ions of fullerenes could also serve for mass calibration. This study describes the determination of CCS values of fullerene molecular ions from C56+• to C240+• and the application of ions from C56+• to C220+• to calibrate the ion mobility scale of a Bruker timsTOFflex instrument in any combination of LDI, matrix-assisted laser desorption/ionization (MALDI), and electrospray ionization (ESI) modes in the CCS range from about 200 to 420 Å2. This use was exemplified along with ions from Agilent Tune Mix, leucine-enkephalin, angiotensin I, angiotensin II, and substance P.
DOI:doi:10.1007/s00216-024-05579-0
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

kostenfrei: Volltext: https://doi.org/10.1007/s00216-024-05579-0
 kostenfrei: Volltext: https://link.springer.com/article/10.1007/s00216-024-05579-0
 DOI: https://doi.org/10.1007/s00216-024-05579-0
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Electrospray ionization (ESI)
 Fullerene soot
 Ion mobility calibrant
 Laser desorption/ionization (LDI)
 Matrix-assisted laser desorption/ionization (MALDI)
 Trapped ion mobility spectrometry (TIMS)
K10plus-PPN:1920986553
Verknüpfungen:→ Zeitschrift

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