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An effective, sensitive, relatively-fast and cost-effective method was developed to determine two types of selected organophosphorus pesticides (OPPs) including diazinon and chlorpyrifos in tomato, cucumber and agricultural water samples through applying MIL-101@ graphene oxide-reinforced hollow fiber solid-phase microextraction (MIL-101@GO-HF-SPME). The extracted analytes were desorbed via organic solvent and analyzed through high-performance liquid chromatography-ultraviolet detection (HPLC-UV) after extraction. MIL-101@ GO sorbent which was previously pr