Detailed Information on Publication Record
2017
Clusters of Monoisotopic Elements for Calibration in (TOF) Mass Spectrometry
KOLÁŘOVÁ, Lenka, Lubomír PROKEŠ, Lukáš KUČERA, Aleš HAMPL, Eladia Maria PEŇA MENDÉZ et. al.Basic information
Original name
Clusters of Monoisotopic Elements for Calibration in (TOF) Mass Spectrometry
Authors
KOLÁŘOVÁ, Lenka (203 Czech Republic, belonging to the institution), Lubomír PROKEŠ (203 Czech Republic, belonging to the institution), Lukáš KUČERA (203 Czech Republic, belonging to the institution), Aleš HAMPL (203 Czech Republic, belonging to the institution), Eladia Maria PEŇA MENDÉZ (724 Spain), Petr VAŇHARA (203 Czech Republic, belonging to the institution) and Josef HAVEL (203 Czech Republic, belonging to the institution)
Edition
Journal of The American Society for Mass Spectrometry, New York, Springer, 2017, 1044-0305
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10406 Analytical chemistry
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 2.869
RIV identification code
RIV/00216224:14310/17:00096268
Organization unit
Faculty of Science
UT WoS
000398111400003
Keywords in English
Monoisotopic elements; Calibration; Gold clusters; Phosphorus clusters; TOF mass spectrometry
Změněno: 30/3/2018 08:54, Ing. Nicole Zrilić
Abstract
V originále
Precise calibration in TOF MS requires suitable and reliable standards, which are not always available for high masses. We evaluated inorganic clusters of the monoisotopic elements gold and phosphorus (Aun+/Aun- and Pn+/Pn-) as an alternative to peptides or proteins for the external and internal calibration of mass spectra in various experimental and instrumental scenarios. Monoisotopic gold or phosphorus clusters can be easily generated in situ from suitable precursors by laser desorption/ionization (LDI) or matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). Their use offers numerous advantages, including simplicity of preparation, biological inertness, and exact mass determination even at lower mass resolution. We used citrate-stabilized gold nanoparticles to generate gold calibration clusters, and red phosphorus powder to generate phosphorus clusters. Both elements can be added to samples to perform internal calibration up to mass-to-charge (m/z) 10–15,000 without significantly interfering with the analyte. We demonstrated the use of the gold and phosphorous clusters in the MS analysis of complex biological samples, including microbial standards and total extracts of mouse embryonic fibroblasts. We believe that clusters of monoisotopic elements could be used as generally applicable calibrants for complex biological samples.
Links
EE2.3.20.0185, research and development project |
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MUNI/A/1352/2015, interní kód MU |
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