摘要
采用选择离子流动管质谱(SIFT/MS)装置,以H3O+、NO+为初始离子对汽油和柴油蒸汽进行了研究,质谱分析表明,汽油和柴油主要由C-H化合物组成.包括烷烃、环烷烃、烯烃、炔烃、二烯烃以及芳香烃。在这几种成分中,烷烃都占有最大的比例;汽油蒸汽和柴油蒸汽最大的区别是柴油蒸汽中长链大分子的挥发性C-H化合物所占的比例远远高于汽油蒸汽。文中还给出了以H3O+、NO+为初始离子所得到的汽油蒸汽的质谱图,以及汽油、柴油蒸汽中各种成分的定量分析结果。
The results about selected ion flow tube/mass spectrometry (SIFT/MS) study of the different compounds in petrol and diesel vapor's using H3O+, NO+ as the precursor ions are reported. We assume both petrol and diesel are made up of CHs, including alkanes (CnH2n+2), alkenes or cyclokanes (CnH2n) alkynes or dienes (CnH2n-2) and aromatic hydrocarbons (CnH2n-6). Among these compounds, the alkanes are the predominant species both in diesel and petrol vapors; The most obvious difference between petrol and diesel vapor is. the presence of a greater abundance of long chain aliphatic CHs in the diesel vapor. In this paper, the mass spectra of petrol vapor using the precursors of the H3O+ NO+ and the quantitative analysis results of, the compounds in the petrol and diesel vapors are also presented.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2003年第5期548-551,共4页
Chinese Journal of Analytical Chemistry
