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                                                          2,4,6-TNT
                             ×100

                                    Mass Range
                                    225.5 - 226.5 +
                                    226.5 - 227.5



                             ×10
                                     Mass Range
                                     167.5 - 168.5





                             ×10
                                     Mass Range
                                     181.5 - 182.5




                             ×10
                                     Mass Range
                                     212.5 - 213.5


                             0   2   4   6   8   10  12  14  16  18  20   22  24  26  28  30  32
                                                       Retention Time (min)
                             Figure 6.11  LC/MS-APCI mass chromatograms of a 4-times crystallized TNT
                             sample. (Reprinted from Zhao, X. and Yinon, J., Characterization and origin
                             identification of 2,4,6-trinitrotoluene through its by-product isomers by liquid
                             chromatography – atmospheric pressure chemical ionization mass spectrometry,
                             J. Chromatogr. A, 946, 125, 2002. Copyright 2002, with permission from Elsevier
                             Science.)



                                            CH 3                               CH 3
                                     O N          NH 2                 O N          NO 2
                                                                         2
                                       2


                                            NO 2                               NH 2
                                          2-ADNT                            4-ADNT
                             Scheme 4

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