Application of an Activated Carbon-Based Support for Magnetic Solid Phase Extraction Followed by Spectrophotometric Determination of Tartrazine in Commercial Beverages

Table 1

Maximum adsorbed tartrazine on the adsorbent at different pH values.

pH value	Tartrazine adsorbed (mmol kg^−1)
5.0	54.5
7.0	48.4
9.0	42.7