Food safety issues caused by pesticide residue have exerted far-reaching impacts on human daily life. yet the available detection methods normally focus on surface residue rather than pesticide penetration to the internal area of foods. Herein. we demonstrated gold nanoparticle (AuNP)-immersed paper imprinting mass spectrometry imaging (MSI) for monitoring pesticide migration behavior... https://countryscenesaddleryandpetsuppliers.shop/product-category/pleasure-saddle/