Table 2 Comparison of chromatographic techniques [60,61,62]
From: Quality control of the traditional herbs and herbal products: a review
Parameters | HPLC | HP-TLC | GC |
|---|---|---|---|
Stationary phase | Column | Paper/glass | Liquid/solid |
Mobile phase | Solvent mixture | Solvent mixtures | Pure inert gas |
Sample | One at one run | Many at a single run | One at one run |
Pressure | High | _____ | Controlled pressure |
System | Closed | Open | Closed |
Results | System (peaks) | System peaks and visual by bands | System (peaks) |
Resolution | High to very high | Moderate to high | High to very high |
Time | 2–60 min | 1–30 min | 2–60 min |
Temperature | Constant | Constant | Increasing |