Effect of Ammonia Addition to the Mobile Phase on Atmospheric Pressure Chemical Ionization Mass Spectrometry of Methyl Hydroperoxyoleates
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概要
- 論文の詳細を見る
The method for observing molecular related ions of methyl hydroperoxyoleates (OMH) by atmospheric pressure chemical ionization (APCI) mass spectrometry (MS) was investigated. Since thermally labile OMH is decomposed in the APCI nebulizer and/or desolvation chamber heated to a high temperature, it is difficult to observe significant peaks of their protonated molecules. The addition of ammonia water to the mobile phase (ethanol) was quite effective to suppress the thermal decomposition of OMH. As the result the mass spectra exhibited the intense peaks of ammonium adduct ions of OMH, [M+NH4]+, at m/z 346. The nebulizer temperature at 170°C and the drift voltage at 170 V were adequate for observing the molecular ion species of OMH.
- 日本質量分析学会の論文
- 1998-06-01
著者
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NAKAMURA Shigeo
Department of Clinical Pathology, Aichi Cancer Center Hospital
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MOCHIDA Yoshiyuki
Department of Material and Life Chemistry, Kanagawa University
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Mochida Yoshiyuki
Department Of Applied Chemistry Faculty Of Engineering Kanagawa University
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Nakamura Shigeo
Department Of Pathology Nagoya University School Of Medicine
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YOKOYAMA Yukio
Laboratory of Analytical Chemistry, Faculty of Engineering, Yokohama National University
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Nakamura S
Department Of Chemical Systems And Engineering Graduate School Of Engineering Kyushu University
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Yokoyama Y
Nec Corporation
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Yokoyama Yukio
Laboratory For Industrial Analytical Chemistry Faculty Of Engineering Yokohama National University
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Nakamura Shigeo
Department Of Cardiovascular Diseases. Kokura National Hospital
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NAKAMURA Shigeo
Department of Applied Chemistry, Faculty of Engineering, Kanagawa University
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