Homogeneity testing is not without its challenges. Some of the common issues include:
1. Complexity of Mixtures: Catalytic systems often involve complex mixtures, making it difficult to identify the phase of the catalyst. 2. Transient Species: Catalysts can form transient intermediates that are hard to detect, complicating the analysis. 3. Equilibrium Considerations: In some systems, equilibrium between homogeneous and heterogeneous phases can exist, further complicating the analysis.
