The history of electron ionization in LC-MS, from the early days to modern technologies: A review
| Autor: | Pierangela Palma, Achille Cappiello, Giorgio Famiglini, Veronica Termopoli |
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| Přispěvatelé: | Famiglini, G, Palma, P, Termopoli, V, Cappiello, A |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Analyte
LC-MS LEI interface Mass spectrometry Chromatography Chemistry 010401 analytical chemistry 02 engineering and technology 021001 nanoscience & nanotechnology Mass spectrometry 01 natural sciences Biochemistry Ion source 0104 chemical sciences Analytical Chemistry CHIM/01 - CHIMICA ANALITICA Liquid chromatography–mass spectrometry Ionization Mass spectrum Environmental Chemistry 0210 nano-technology Spectroscopy Electron ionization |
| Popis: | This review article traces the history of the use of liquid chromatography coupled with mass spectrometry (LC-MS) using electron ionization (EI) from the first attempts up to the present day. At the time of the first efforts to couple LC to MS, 70 eV EI was the most common ionization technique, typically used in gas chromatography-mass spectrometry (GC-MS) and providing highly reproducible mass spectra that could be collated in libraries. Therefore, it was obvious to transport this dominant approach to the early LC-MS coupling attempts. The use of LC coupled to EI-MS is challenging mainly due to restrictions related to high-vacuum and high-temperature conditions required for the operation of EI and the need to remove the eluent carrying the analyte before entering the ion source. The authors will take readers through a journey of about 50 years, showing how through the succession of different attempts it has been possible to successfully couple LC with EI-MS, which in principle appear to be incompatible. |
| Databáze: | OpenAIRE |
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