| Exact Mass Measurements for a-Allenic Alcohol by Atmospheric Pressure Chemical Ionization／Time-of-flight Mass Spectrometry |
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| 引用本文： | 何萍,郭寅龙,陈国强,徐代旺,麻生明.Exact Mass Measurements for a-Allenic Alcohol by Atmospheric Pressure Chemical Ionization／Time-of-flight Mass Spectrometry[J].中国化学,2003,21(8):1080-1083. |
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| 作者姓名： | 何萍 郭寅龙 陈国强 徐代旺 麻生明 |
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| 作者单位： | [1]DepartmentofAnalyticalChemistry,ShanghaiInstituteofOrganicChemistry,ChineseAcademyofSciences,Shanghai200032,China [2]StateKeyLaboratoryofOrganometallicChemistry,ChineseAcademyofSciences,Shanghai200032,China |
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| 摘 要： | The atmospheric pressure chemical ionization/time,of-flight mass speetrmtry (APEI/TOF-MS) was applied to determine the mass of five a.aIIenic alcohols via their vrotonated molecu.lar ions nslna Imsifive ion mode. Polyethylene Idycol (PEG) was used as the hlternal reference. All results were obtained under the resolution of about 5000 FWHM (full width at the half maximum). Solvent effects were studied and the satired results were obtained in acetonitrile. Comvared with the theoreflcal values, nun absolute errors were less thRn 1.0 mmu. The efTeets Of nozzle pote.Jldal, push pulse potential, pug pulse potentlai, puO bias potential and ic(lulsltion rate on exact mass determina/lon were also discussed. APCI/TOF.MS is proven to be a very semi/ire analytical technique and an alternative ionizafion mode in analytical technique lablle compounds with relatively weak polarity, such as a-allenic alcohol.
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| 关 键 词： | 正合质量测量法 a-丙二烯乙醇 大气压力 化学电离 飞行时间 质谱分析 |
Exact Mass Measurements for α‐Allenic Alcohol by Atmospheric Pressure Chemical Ionization/Time‐of‐flight Mass Spectrometry |
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| He Ping,Guo Yin‐Long,Chen Guo‐Qiang,Xu Dai‐Wang,Ma Sheng‐Ming.Exact Mass Measurements for α‐Allenic Alcohol by Atmospheric Pressure Chemical Ionization/Time‐of‐flight Mass Spectrometry[J].Chinese Journal of Chemistry,2003,21(8):1080-1083. |
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| Authors: | He Ping Guo Yin‐Long Chen Guo‐Qiang Xu Dai‐Wang Ma Sheng‐Ming |
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| Abstract: | The atmospheric pressure chemical ionization/time‐of‐flight mass spectrometry (APCI/TOF‐MS) was applied to determine the mass of five α‐allenic alcohols via their protonated molecular ions using positive ion mode. Polyethylene glycol (PEG) was used as the internal reference. All results were obtained under the resolution of about 5000 FWHM (full width at the half maximum). Solvent effects were studied and the satisfied results were obtained in acetonitrile. Compared with the theoretical values, all absolute errors were less than 1.0 mmu. The effects of nozzle potential, push pulse potential, pull pulse potential, pull bias potential and acquisition rate on exact mass determination were also discussed. APCI/TOF‐MS is proven to be a very sensitive analytical technique and an alternative ionization mode in analyzing thermally labile compounds with relatively weak polarity, such as α‐allenic alcohol. |
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