Development and Validation of HPLC Method for the Simultaneous Determination of Five Food Additives and Caffeine in Soft Drinks

<div>Chromatogram of synthetic standard mixture containing five food additives and caffeine recorded under optimized analysis conditions (1: sodium benzoate (15 <i>μ</i>g/mL), 2: potassium sorbate (15 <i>μ</i>g/mL), 3: caffeine (15 <i>μ</i>g/mL), 4: ponceau 4R (6 <i>μ</i>g/mL), 5: allura red (6 <i>μ</i>g/mL), and 6: carmoisine (6 <i>μ</i>g/mL)).</div>

International Journal of Analytical Chemistry

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Figure 3

Figure 3: Development and Validation of HPLC Method for the Simultaneous Determination of Five Food Additives and Caffeine in Soft Drinks 