首页|Au-doped MOFs catalyzed electrochemiluminescence platform coupled with target-induced self-enrichment for detection of synthetic cannabinoid RCS-4
Au-doped MOFs catalyzed electrochemiluminescence platform coupled with target-induced self-enrichment for detection of synthetic cannabinoid RCS-4
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A ternary composite material with Au,Co-based organic frameworks(ZIF-67) and perylene derivatives(PTCD-cys) has been synthesized for identification of synthetic cannabinoids.Through contact with Au-S,Au-ZIF-67 increased electrochemiluminescence(ECL) sensitivity and stability and efficiently catalyzed the ECL of PTCD-cys.Compared with the ECL response of PTCD-cys monomer,the ECL signal value of the composite material was significantly increased,and the onset potential of Au-ZIF-67/PTCD-cys favorably shifted more than that of PTCD-cys/GCE.When the target cannabinoid molecule RCS-4 appeared,Au-ZIF-67 captured and immobilized it on the sensor surface by adsorption to achieve target-induced self-enrichment of RCS-4.Under optimal conditions,the ECL sensor was found to be linearly related to the logarithm of the RCS-4 concentration ranging from 3.1 × 1CT15 to 3.1 × 10~9 mol/L with a detection limit(LOD) of 6.0× 10~16 mol/L(S/N = 3).The approach had the advantages of being simple to use,having a high sensitivity,a wide detection range,and good stability,making it a novel platform for RSC-4 detection in public health safety monitoring.