Cu+ Chemical Ionization for Analysis of Hydrocarbons by Gas Chromatography/Mass Spectrometry
| Autor: | V. Haldys, P. J. Fordham, Jeanine Tortajada, B. Desmazières, J. Chamot-Rooke, J.-P. Morizur |
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| Jazyk: | angličtina |
| Předmět: |
Chemical ionization
Structural Biology Chemistry Analytical chemistry Atmospheric-pressure chemical ionization Direct electron ionization liquid chromatography–mass spectrometry interface Fast atom bombardment Mass spectrometry Astrophysics::Galaxy Astrophysics Spectroscopy Electron ionization Sample preparation in mass spectrometry Ion source |
| Zdroj: | Journal of the American Society for Mass Spectrometry. (7):731-734 |
| ISSN: | 1044-0305 |
| DOI: | 10.1016/S1044-0305(98)00035-X |
| Popis: | The use of copper ions for chemical ionization (CI) coupled with gas chromatography/mass spectrometry (GC/MS) of hydrocarbons is reported. Cu+–CI was performed in a high-pressure, fast atom bombardment ion source coupled with both a gas chromatograph and a mass spectrometer. The suitability of the Cu+–CI method is illustrated by the analysis of pure alkylbenzenes, alkylthiophenes, octenes, and by the analysis of a light mixture of aromatic hydrocarbons. The Cu+–CI/GC mass spectra display an abundant [M+63Cu]+ ion, together with fragmentations, that are of structural interest. The detection limit for isobutylbenzene, taken as model compound, is 100 times lower than that for electron ionization. |
| Databáze: | OpenAIRE |
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