Molecular blotting polymer microsphere for detecting malachite green

The invention provides a molecular imprinted polymer microsphere for fast detecting malachite green in aquatic products, which is prepared by mixing two functional monomers at a certain ratio, mixing a malachite green template with the monitor at a certain ratio, sequentially adding a crosslinking agent, an initiator, an emulsifying agent and a lipophilic solvent, and preparing the molecular imprinted polymer microsphere. The invention further provides a method for detecting the malachite green in a sample, which comprises the following steps of: identifying, adsorbing and concentrating a processed aquatic product, and determining the concentration of the malachite green by spectrophotometry. Additionally, the sample can be concentrated to lower the detection limit, so that the method is especially suitable for detection of low-content samples.