Simultaneous Preconcentration of Fast Green FCF and Rhodamine B Using Deep Eutectic Solvent and Determination via High-Performance Thin Layer Chromatography

Table 6

Analytical parameters for simultaneous determination of fast green FCF and rhodamine B based on deep eutectic solvent.

Name	Calibration equation	Linear range (µg mL^−1)	LOD (µg mL^−1)	r	EF	PF	Repeatability (%)
Fast green FCF	Y = 664.66 X + 160.44	0.10–1.20	0.08	0.998	7.43	21.66	3.65
Rhodamine B	Y = 2922.5 X + 290.29	0.05–1.20	0.01	0.998	10.77	21.66	3.47

LOD: limit of detection; r: correlation coefficient; EF: enrichment factor; PF: preconcentration factor.