The selection of chromatographic tracers depends on various factors including the nature of the catalytic reaction, the type of catalyst, and the detection method. Ideally, a tracer should be chemically stable, easily detectable, and should not interfere with the catalytic process. Commonly used tracers include isotopically labeled compounds, such as Carbon-13 or Deuterium labeled molecules, which can be distinguished from their natural counterparts using mass spectrometry.
