A needle-to-post air discharge ion source in tandem with FAIMS system
| Autor: | Ruosheng Zeng, Hongmei Yun, Hua Li, Yongrong Jiang, Zhencheng Chen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Ionization
Analytical chemistry 02 engineering and technology 01 natural sciences Mass Spectrometry Analytical Chemistry Isomers Spectrum Analysis Techniques Stereochemistry Flow Rate Glow discharge Multidisciplinary Atmospheric pressure Organic Compounds Physics Chemical Reactions Classical Mechanics Mass Spectra 021001 nanoscience & nanotechnology Laboratory Equipment Chemistry Needles Physical Sciences Engineering and Technology Medicine Ion trap 0210 nano-technology Research Article Materials science Ion-mobility spectrometry Science Equipment Fluid Mechanics Xylenes Research and Analysis Methods Continuum Mechanics Ion Acetones Isomerism Ion Mobility Spectrometry Fluid Flow Electrodes Ions Ethanol 010401 analytical chemistry Organic Chemistry Chemical Compounds Fluid Dynamics Ion source 0104 chemical sciences Ion Sources Alcohols Mass spectrum Feasibility Studies Copper |
| Zdroj: | PLoS ONE, Vol 14, Iss 8, p e0221080 (2019) PLoS ONE |
| ISSN: | 1932-6203 |
| Popis: | A needle-to-post ionization source was designed for high-field asymmetric waveform ion mobility spectrometry (FAIMS). The needle-to-post ion source includes asymmetric electrode comprised of a copper post with a diameter of 2 mm and a stainless-steel needle with 200-μm tip radius and length of 28 mm. With the discharge voltage of -5.6 kV and N2 gas flow, glow discharge was realized at atmospheric pressure. The mass spectra of ionized ions about acetone, ethanol and ethyl acetate were gotten by Thermo Scientific LTQ XL ion trap mass spectrometer (MS). The MS experimental results show that the main ions are protonated and dimer ions. The needle-to-post ion source was mounted on the FAIMS system and FAIMS spectra are gotten successfully. Separation of p-xylene, o-xylene and m-xylene was realized. It shows that the needle-to-post electrode could be used as the ion source in a FAIMS system. |
| Databáze: | OpenAIRE |
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