Evaluation of Comprehensive 2D Gas  Chromatography-Time-of-Flight Mass  Spectrometry for 209 Chlorinated Biphenyl  Congeners in Two Chromatographic Runs

<table>Surface view showing the use of 2D in the separation of four pairs of polychlorinated biphenyl isomers with IUPAC numbers beginning from the right of (110 + 120), (115 + 111), (86 + 112), and (119 + 83). The PCB isomers (left pair) numbers (90 + 101) were inseparable under the chromatographic conditions used. Both axes are in seconds.</table>

Chromatography Research International

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Figure 1

Figure 1: Evaluation of Comprehensive 2D Gas  Chromatography-Time-of-Flight Mass  Spectrometry for 209 Chlorinated Biphenyl  Congeners in Two Chromatographic Runs 

Figure 1 | Evaluation of Comprehensive 2D Gas  Chromatography-Time-of-Flight Mass  Spectrometry for 209 Chlorinated Biphenyl  Congeners in Two Chromatographic Runs 