Hapten-Grafted Programmed Probe as a Corecognition Element for a Competitive Immunosensor to Detect Acetamiprid Residue in Agricultural Products.
本研究开发了一种基于半抗原接枝程序化探针(HGPP)作为共识别元件的竞争性电化学免疫传感器,用于高灵敏、高选择性地检测农产品中啶虫脒残留。首先合成啶虫脒半抗原,并通过混合酸酐法将半抗原羧基与程序化探针5′端氨基共价偶联,制备HGPP。金电极表面先自组装二氢硫辛酸(DHLA),经EDC/NHS活化后固定抗啶虫脒单克隆抗体,再用1-巯基...