摘要
选择最佳GC/MS分析条件,对工业级和分析级糠醛所含各组分进行分离和检测,通过质谱谱库的计算机检索,结合图谱解析和参考文献定性,鉴定出了十个主要组分。在气相色谱仪上,采用内标法对各组分进行定量,取得了满意的分析结果。
In this paper, compounds in the industrial grade and analytical grade furfural were separated and detected under the optimum GC/MS conditions. According to the mass spectrum library searching, mass spectra interpreting and some references, ten compounds were identified:furan, 2,5- dihydrofuran, 2(5H)- furanone, furfural, 5- methyl- 2(5H)- furanone, 1- (2- furanyl)- ethanone, 5- methylfurfural, 5- ethylfurfural, 5- methyl- 2- propionylfurane, and 2- (4- methyl- 2- furyl)- 2- cyclopenten- 1- one. These compounds were quantified precisely by the internal standard method on a PE/XL gas chromatography. The relative standard deviations of the furfural purity were under 3.66% and the recovery of furfural were in the range of 95.2%～101.8%.
出处
《分析科学学报》
CAS
CSCD
北大核心
2003年第5期451-452,共2页
Journal of Analytical Science
