The Use of ATR-FTIR Spectroscopy for Quantification of Adsorbed Compounds

Figure 6

Natural logarithm of the ratio between the absorption bands of γ-terpinene to the terpinen-4-ol as a function of time for nonadsorbed tea tree oil, tea tree oil adsorbed on clay, and on berberine-montmorillonite (OC) organoclay.