SYNTHESIS OF MOLECULAR IMPRINTING POLYMERS FOR EXTRACTION OF SUDAN II FROM CHILI SAUCE AND SIRO SAMPLES

Abstract

The selective molecular imprinting polymer (MIP) for Sudan II is synthesized by a copolymer reaction between methacryclic acid (MAA) and ethylenglycoldimethacrylate (EGDMA) with azobisisobutyronitrile initiator (AIBN). This material is very selective for Sudan II with a recovery of 86.67%, while Sudan I, Rhodamine 6G and Rhodamine B (45.14%, 8.11% and 6.71%, respectively). The maximum absorption capacity of Sudan II is 8,905 mg/1g of MIP. Analytical method of Sudan II by UPLC has been validated on the matrix of syrup and chili sauce. The recovery of method was above 91%, LOD 10 µg/L and LOQ 33 µg/L. Sudan II were extracted by MIP and analyzed by UPLC in the syrup and chili sauce samples