1-2-3 イオン付着質量分析法によるガス化ガス中微量芳香族成分のリアルタイム計測(1-2 熱分解・石炭改質,Session 1 石炭・重質油等)

概要

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Ion-attachment mass spectrometry (IAMS) is a form of mass spectrometry employing a "soft" form of ionization in which a cation is attached to the analyte molecule in a reactive collision. This technique is applicable to gases or any materials that can be vaporized. It uses a non-fragmenting non-conventional ionization mode, by attachment of a lithium or alkaline ion to the gas to be analyzed with a more traditional mass filter. In this study, we developed a prototype devise of the IAMS and conducted preliminary experiments toward an application of the IAMS to the real time monitoring of complex gas mixtures derived from coal thermochemical conversions. The model tar vapor which includes toluene, naphthalene, and 1-metyl-naphthalene, was measured by the IAMS and the results were compared with those obtained from the conventional electron impact [EI] ionization mode. We could successfully identify each molecule without any fragmentation peaks whereas the EI mode gave scattered mass signals due to fragmentation.
一般社団法人日本エネルギー学会の論文
2013-07-29