الفهرس 
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Abstract
Organophosphates are a type of pesticide that works by poisoning insects to protect plants and increase crop productivity. Organophosphates are the most widely used pesticides today. They are used in agriculture, the home, gardens, and veterinary medicine. However, using some of these pesticides in large amounts and at high concentrations can constitute a serious threat to the environment and, as a result, to humans. Pesticides are transmitted to the water by meteorological variables and then injure aquatic creatures, resulting in a direct influence and harm to fish riches. To maintain food safety, monitoring these compounds in the environment costs a lot of time and money. As a result, the major goal of this method is to remove these organophosphates from water and waste water, as well as to investigate the impact of synthesised silver vanadate nanoparticles on them.
The obtained results could be summarized as follows:
1) The silver vanadate nanoparticles (-Ag3VO4) were synthesized using a simple microwave aided process to eliminate numerous organophosphate pesticide groups prevalent in water and waste water.
2) Electrospray positive ionisation (ESI+) was utilised to determine these compounds using Exion HPLC coupled with SciexQtrap API 6500+ LC-MS/MS System. The chromatographic separation is done under a temperature of 40°C with 2 μL injection volume. Organophosphates are separated using gradient elution of 10% 50 mM ammonium formate in deionized water with 0.1% formic acid as eluent A and methanol as eluent B at 0.3 mL/min flow rate on a Poroshell 120 EC-C18 column with 3.0 × 50 mm, 2.7 μm particle size.
3) MS/MS detection was executed using electrospray ionization in the positive ion mode with the multiple reaction monitoring (MRM) mode. The direct infusion scan mode of the Qtrap API 6500+ LC-MS/MS System and the Thermo ScientificTM Orbitrap ExplorisTM 120 mass spectrometer were used to determine chlorpyrifos breakdown products as an example for the other impacted organophosphate pesticides.