期刊
JOURNAL OF SEPARATION SCIENCE
卷 27, 期 5-6, 页码 468-472出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.200301643
关键词
comprehensive two-dimensional gas chromatography; speciation of nitrogen-containing compounds; diesel fuel
Nitrogen-containing compounds in diesel fuel have been speciated by comprehensive two-dimensional gas chromatography with nitrogen chemiluminescence detector (GC x GC-NCD). The speciation of nitrogen-containing compounds in diesel is difficult because of low concentration and complexity. The advantages of GC x GC are improved resolution and enhanced sensitivity. GC x GC-NCD can achieve the type and class separation of nitrogen-containing compounds with an appropriate separation column combination. Diesel contains both neutral (indoles and carbazoles) and basic (pyridines and quinolines) nitrogen-containing compounds. Relative concentrations of each class as well as each carbon number family can be quantified by integrating their peak volumes. This study demonstrates the capability of GC x GC-NCD for speciation of nitrogen-containing compound classes.
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