Naval Air Systems Command 1 article published in JoVE Chemistry Nitrogen Compound Characterization in Fuels by Multidimensional Gas Chromatography Rachel D. Deese1,2, Robert E. Morris3, Mark Romanczyk4, Alison E. Metz5, Thomas N. Loegel1 1U.S. Naval Research Laboratory, 2NRC Research Associateships Programs, 3Nova Research, Inc., 4Peraton, 5Naval Air Systems Command, Air-4.4.5. Here, we present a method utilizing two-dimensional gas chromatography and nitrogen chemiluminescence detection (GCxGC-NCD) to extensively characterize the different classes of nitrogen-containing compounds in diesel and jet fuels.