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

Figure 2

(a) ATR-FTIR spectra of SWy-2 raw clay and clay with added amounts of CV as denoted in the figure (in mmole g⁻¹ clay). All spectra normalized by the absorption band of the Si-O vibration at 990 cm⁻¹. (b) CV adsorbed as a function of the amount added. Points represent average adsorbed amounts evaluated by FTIR ratios of CV to clay absorption bands. Small dots and the dashed line represent the amount as measured by UV-Vis spectroscopy and mass balance calculation.

(a)

(b)