An improved ion source for thermal ionization mass spectrometer
| Autor: | E. Ravisankar, V. Nataraju, T.K. Saha, Varun K. Yadav, R.K. Bhatia, S.C. Gadkari, Arkadip Basak |
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| Rok vydání: | 2017 |
| Předmět: |
Chemistry
010401 analytical chemistry Analytical chemistry Thermal ionization 010402 general chemistry Condensed Matter Physics Mass spectrometry 01 natural sciences Ion source 0104 chemical sciences Computational physics law.invention Lens (optics) law Sensitivity (control systems) Physical and Theoretical Chemistry Instrumentation Spectroscopy |
| Zdroj: | International Journal of Mass Spectrometry. 423:33-38 |
| ISSN: | 1387-3806 |
| DOI: | 10.1016/j.ijms.2017.10.006 |
| Popis: | The ion source of a thermal ionization mass spectrometer (TIMS) has been designed to enhance the source sensitivity by modifying the geometry of extraction lens. Computer simulation studies on different combinations of the electro-static lens components and experimental validations were carried out. This also involved designing a robust triple filament assembly in a home-built TIMS. A good agreement between the simulated and experimental results, led to overall improvements in terms of the consistency of the source performance, a higher through put and an overall sensitivity enhancement by a factor of two. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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