炭化水素のイオン-分子反応におけるアンモニアの添加効果

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概要

• 論文の詳細を見る

• The ionmolecule reactions of hydrocarbons, such as isobutene, isobutane and neopentane, have been investigated in the absence and presence of ammonia in the ionization chamber of the mass spectrometer. In isobutene. butyl ions formed by the proton transfer reactions of C2H4+C3H3+, C3H5+and C4H8with iso-butene were decreased and ammoniun ions were produced remarkably when ammonia was added as a proton scavenger. Sec-propyl and-butyl ions formed by the fragmentation of parent ions of isobutane and neopentane, respec tively, were also decreased by addition of ammonia. The rate constant of the proton tran sfer reaction t-C4H9++NH3→C4H8+NH4+was found to be4. 0×10-9cc.molecule-1.sec-1. From these results it is found that ammonia serves as an effective proton scavenger for investigating the role of ionic species in the radiolysis and radiation polymerization reactions.

• 日本質量分析学会の論文

著者

• 猪越 幸雄

  東京都立アイソトープ総合研究所

• 篠崎 善治

  東京都立アイソトープ総合研究所

• 山本 龍夫

  東京都立アイソトープ総合研究所

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