Research Article
Simultaneous Preconcentration of Fast Green FCF and Rhodamine B Using Deep Eutectic Solvent and Determination via High-Performance Thin Layer Chromatography
Figure 5
Three-dimensional chromatograms of (a) fast green FCF in pastille and (b) rhodamine B in lipstick. (A), (B), and (C) are related to different concentrations of analytes based on the standard addition method.
(a) |
(b) |