DETERMINATION OF ORGANOCHLORINE PESTICIDE RESIDUES IN SOME VEGETABLES AND FRUIT BY QuEChERS TECHNIQUES AND GAS CHROMATOGRAPHY /MASS SPECTROMETRY. FJS [Internet]. 2020 Jul. 3 [cited 2025 Sep. 8];4(2):365-70. Available from: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/223