Dual-template Molecularly Imprinted Electrochemical Sensor Based on Foamed Iron-Based MOF for Simultaneous and Specific Detection of Α-Arbutin and Β-Arbutin in Cosmetics

We used a simple and environmentally friendly method to prepare electrode material, and the structure of an iron-based metal-organic framework, MOF(Fe), which was modified by L-lysine and ammonia to form a bub-ble-like hollow interior structure. Benzoquinone was added to increase the crystallization rate in order to max-imize the specific surface area. Finally, electrode sensitization material with a satisfactory specific surface area (1840.52 m2/g) and excellent conductivity was synthesized. An electrochemical sensor using the double -tem-plate molecular imprinting method was constructed and facilitated the simultaneous specific detection of alpha-Ar and beta-Ar with a detection limit of 6.667 x 10-13 mol/L. This sensor can be applied to the detection of whiten-ing cosmetics.