摘要
利用气溶胶飞行时间激光质谱仪测定了两种芳香烃气溶胶的质谱,发现芳香族化合物产生的气溶胶粒子容易形成分子离子峰,对苯二酚还发生分子离子反应.对室内外空气中的气溶胶粒子的粒径进行实时检测的结果表明,室内外空气中的气溶胶粒子多以细粒子为主.实验结果表明,该仪器在大气气溶胶污染监测及相关研究领域具有重要的实用价值.
The mass spectra of two aromatic compounds have been analyzed using aerosol time-of-flight laser mass spectrometry(ATOFLMS),The results show that the single aerosol particles of aromatic compounds can easily form a molecular ion spectrum and molecule-ion reactions occur during desorption and ionization processes for hydroquinone,The results of real-time measurement on the size of ambient aerosol particles show that most of these particles are fine particles.Experimental results show that self-made aerosol time-of-flight laser mass spectrometer has important practical value for research and monitoring of atmospheric aerosol pollution.
出处
《过程工程学报》
CAS
CSCD
北大核心
2006年第z2期42-45,共4页
The Chinese Journal of Process Engineering
关键词
气溶胶单粒子
飞行时间激光质谱仪
激光解吸附电离
离子峰
individual aerosol particles
time-of-flight laser mass spectrometer
laser desorption ionization
ion mass spectrum peak
