KOLÁŘOVÁ, Lenka, Lubomír PROKEŠ, Lukáš KUČERA, Aleš HAMPL, Eladia Maria PEŇA MENDÉZ, Petr VAŇHARA and Josef HAVEL. Clusters of Monoisotopic Elements for Calibration in (TOF) Mass Spectrometry. Journal of The American Society for Mass Spectrometry. New York: Springer, 2017, vol. 28, No 3, p. 419-427. ISSN 1044-0305. Available from: https://dx.doi.org/10.1007/s13361-016-1567-x.
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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
Original language English
Type of outcome Article in a journal
Field of Study 10406 Analytical chemistry
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 2.869
RIV identification code RIV/00216224:14310/17:00096268
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1007/s13361-016-1567-x
UT WoS 000398111400003
Keywords in English Monoisotopic elements; Calibration; Gold clusters; Phosphorus clusters; TOF mass spectrometry
Tags AKR, NZ, rivok
Changed by Changed by: Ing. Nicole Zrilić, učo 240776. Changed: 30/3/2018 08:54.
Abstract
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 projectName: Centrum analýz a modelování tkání a orgánů
MUNI/A/1352/2015, interní kód MUName: Zdroje pro tkáňové inženýrství 6 (Acronym: TissueENG 6)
Investor: Masaryk University, Category A
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