Adsorption of Malachite Green (MG) as a Cationic Dye on Amberlyst 15, an Ion-Exchange Resin

Figure 1

The chromatograms. The samples were spiked with 5 and 0.5 μg/L of malachite green, respectively. The retention time of malachite green was 3.55 min. The detector-monitoring wavelength was 618 nm.