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2013 | 123 | 5 | 911-915
Article title

Mass Spectrometric Study of Positive Ion-Molecule Reactions in the C_{3}H_{6} and Ar Mixtures Inside the High Pressure Ion Source

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Abstracts
EN
Ion-molecule reactions have been measured for the propene-argon mixtures of different compositions using a quadrupole mass spectrometer with a high-pressure ion source. The concentration of propane in these mixtures ranged from 10% to 90% (at 10% increment). The following primary and secondary ions: CH_{5}^{+} (m/q=17), C_{2}H_{2}^{+} (m/q=26), C_{2}H_{3}^{+} (m/q=27), C_{2}H_{4}^{+} (m/q=28), C_{2}H_{5}^{+} (m/q=29), C_{3}H_{3}^{+}/^{39}Ar^{+} (m/q=39), C_{3}H_{4}^{+}/^{40}Ar^{+} (m/q=40), C_{3}H_{5}^{+} (m/q=41), C_{3}H_{6}^{+}/^{42}Ar^{+} (m/q=42), C_{3}H_{7}^{+} (m/q=43), C_{3}H_{8}^{+} (m/q=44), C_{4}H_{5}^{+} (m/q=53), C_{4}H_{6}^{+} (m/q=54), C_{4}H_{7}^{+} (m/q=55), C_{4}H_{8}^{+} (m/q=56), C_{4}H_{9}^{+} (m/q=57), C_{5}H_{5}^{+} (m/q=65), C_{5}H_{6}^{+} (m/q=66), C_{5}H_{7}^{+} (m/q=67), C_{5}H_{8}^{+} (m/q=68), C_{5}H_{9}^{+} (m/q=69), C_{5}H_{10}^{+} (m/q=70) were observed. Relative ion current intensities for primary and secondary ions are presented as a function of both total mixtures pressure and concentration of propene in the mixture. Primary ions were produced by electrons with the energy of 300 eV. The potential of repeller electrode V_{R} inside the ion source collision chamber was fixed at 5 V for all measurements. The total mixture pressure was changed from 0.7 to 26.6 Pa. Schemes of ion-molecule reactions were proposed.
Keywords
Contributors
author
  • Institute of Physics, Maria Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland
author
  • Institute of Physics, Maria Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland
author
  • Institute of Physics, Maria Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland
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Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv123n533kz
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