EFFECTS OF TEA CONSTITUENTS AND pH ON DETERMINATION OF ORGANOPHOSPHORUS PESTICIDE IN TEA BEVERAGE EXTRACTED BY HS-SPME SELECTION OF COMBINED PESTICIDES FORMULATIONS AND STUDY ON THEIR SYNERGISTIC ACTION The toxic effects of organophosphorus pesticides on microalgae: a review Residues Analysis and Degradation Dynamic of Organophosphorus Pesticides in Citrus Fruits Residues Analysis and Degradation Dynamic of Organophosphorus Pesticides in Citrus Fruits Cloning and Characterization of mpd and ophc2 from an Organophosphorus Pesticide-degrading Bacteria YC-YH1 Sensitivity of Wheat Bran Esterase to Organophosphorus and Carbamate Pesticides