Figure 2. Typical HPLC chromatograms of (A) a standard mixture solution of benzoic acid 100 μg/mL and sorbic acid 20 μg/mL (B) a blank noodle sample (C) a blank noodle sample spiked with a standard mixture solution of benzoic acid 100 μg/mL and sorbic acid 20 μg/ mL and (D) a noodle sample containing benzoic acid.