Gas chromatography multiphoton ionization Fourier transform mass spectrometry

Autor:	David A. McCrery, Michael L. Gross, Thomas M. Sack
Rok vydání:	1985
Předmět:	Fourier Analysis Spectrometer Chemistry Ionization Analytical chemistry Photoionization Gas chromatography Gas chromatography–mass spectrometry Mass spectrometry Gas Chromatography-Mass Spectrometry Fourier transform ion cyclotron resonance Analytical Chemistry Hybrid mass spectrometer
Zdroj:	Analytical Chemistry. 57:1290-1295
ISSN:	1520-6882 0003-2700
Popis:	A capillary gas chromatograph/Fourier transform mass spectrometer (GC/FTMS) has been upgraded so that a pulsed laser operating at 266 nm can be used for multiphoton ionization (MPI). MPI is demonstrated to be a selective ionization method for a variety of polycyclic aromatic hydrocarbons (PAHs) in both a test mixture and a sample of gasoline, and the selectivity is consistent with previous research. However, ions can now be detected at mass resolving powers of greater than 20,000 (fwhm) up to m/z 200 by using the FT mass spectrometer rather than the often-used time-of-flight mass spectrometer. Detection limits for several of the PAHs are reported to be in the low picogram range (i.e., 7 pg for naphthalene) at both high (>20,000) and low (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42c20a6c4850dd6f8337400f5b6d8959 https://doi.org/10.1021/ac00284a027 Zobrazit plný text záznamu