Veterinary drug residues refer to the prototype drugs or their metabolites that still remain after the use of drugs in livestock and poultry bodies, eggs, dairy products and meat, and even include impurity residues related to veterinary drugs. They are like cunning people, quietly existing in food, threatening people's health.
When there are fewer residual sample items and more batches tested, enzyme-linked immunoassay (ELISA) becomes a powerful helper. It acts as an efficient detective, able to quickly and quantitatively reveal the traces of toxic and harmful substances and antibiotics. However, when the number of tests becomes multiple, the detective's expenses rise, perhaps even exceeding the cost of some of the higher-end instruments.
As a result, those large-scale and pursuing export food companies often choose the more precise triple quadrupole liquid chromatography-tandem mass spectrometer. It is like an all-round expert, no matter what kind of veterinary drug residue, it can be hidden under its accurate analysis. While the initial investment may be costly, the accuracy and efficiency are worth the rewards in the long run.