Efficient and selective extraction of azamethiphos and chlorpyrifos residues from mineral water and grape samples using magnetic mesoporous molecularly imprinted polymer

•Magnetic mesoporous molecularly imprinted polymer was successfully synthetized, characterized and applied as adsorbent.•This new adsorbent provided recoveries around 100% and limit of quantification of 5.0 ng mL−1 for azamethiphos and chlorpyrifos.•New magnetic solid phase extraction coupled to HPLC-UV method is found to be simple, fast and selective.•The method was properly applied to analysis of real water and grape samples.