Method and kit for determining residues of polychlorinated biphenyl and various brominated flame retardants in traditional Chinese medicine

The invention provides a method and a kit for determining residues of polychlorinated biphenyls and various brominated flame retardants in traditional Chinese medicine, detection objects comprise 45 PCBs, 28 PBDEs, 3 HBCDs and 6 eBFRs, the method can complete simultaneous extraction, purification and concentration of 82 pollutant components by adopting one-time sampling through optimization of a pretreatment method, and a complex device is not needed; the extraction and purification efficiency is improved through overnight digestion of acidic silica gel, and primary separation of a traditional Chinese medicine sample and an extraction solvent is achieved; separation of 82 pollutant components, quantitative internal standard components and traditional Chinese medicine interference components is completed through further purification of a composite silica gel column; by quantitatively adding a sample injection internal standard and then centrifugally concentrating to the adding volume of the sample injection in