Electron impact ionization of acetaldehyde

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• 作者：Krzysztof Gł ; uch ; Jan Cytawa ; Leszek Michalak
• 关键词：Acetaldehyde ; Electron impact ; Ionization energy ; Appearance energy
• 刊名：International Journal of Mass Spectrometry
• 出版年：2008
• 期刊代码：43_13873806
• 类别：ch
• 出版时间：1 June 2008
• 卷：273
• 期：1-2
• 页码：20-23
• 文件大小：563 K

摘要

An electron impact (EI) ion source and a double focusing sector field mass spectrometer were used to investigate ionization processes of acetaldehyde C₂H₄O. The ionization and appearance energies for observed single C_xH_yO_z⁺ (x = 0, 1, 2; y = 0, 1, …, 4; z = 0, 1) and double C₂H₂O²⁺ charged ions have been determined by using the non-linear least-square fitting procedure to the raising set of the data points. In the case of ions C₂HO⁺, C₂O⁺, CH₃O⁺, CH₂O⁺, C₂H₂⁺, C₂H⁺, C₂⁺, H₂O⁺, HO⁺ and C₂H₂O²⁺ the appearance energies were obtained for the first time.