Simultaneous Determination of Synthetic Food Dyes Using a Single Cartridge for Preconcentration and Separation Followed by Photometric Detection

Table 2

Results for the determination of dyes in the beverage “Festival” (n = 3, ).

Food dye	Original content		Added (mg·L^−1)	Found content		Recovery (%)
	mg·L^−1	RSD (%)		mg·L^−1	RSD (%)
TAR	1.2 ± 0.2	10.0	4.0	5.1 ± 0.5	7.0	97.5
SY	4.4 ± 0.3	4.0	4.0	8.3 ± 0.5	4.0	97.5