Preconcentration and measurement of fenitrothion in water and vegetable samples using ultrasound-assisted emulsification microextraction based on applying low-density organic solvent

Subject Areas :

Faezeh Khalilian ¹ , Mohammad Rezaee ²

1 - Associate Prof. of Aanalytical Chemistry, Department of Chemistry, College of Basic Science, Yadegar-e-Imam Khomeini (RAH) Branch, Islamic Azad University, Tehran, Iran
2 - Assistant Prof. of Aanalytical Chemistry, Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, Iran

Received: 2021-06-20 Accepted : 2021-06-20 Published : 2021-05-22

Keywords: Fenitrothion, Ultrasound-assisted emulsification microextraction, Gas chromatography instrument,

Abstract :

Insecticides can remain in the food products after using, and spread in the environment, surface soil and underground water. The existence of insecticides remainder in the food products is one of the most important concerns for consumers. They have undesirable effects to human health during a long time. In this research, simple and efficient ultrasound-assisted emulsification microextraction (USAEME) method was successfully developed based on applying low density organic solvents for the extraction and determination of fenitrothion insecticide in vegetable and water samples. Several factors influencing the extraction such as type and volume of extraction solvent, temperature, ionic strength and centrifugation time were investigated and optimized. Under the optimum conditions, the calibration ranges was from 2.0 to 100 µg L-1 in water sample and was range from 0.02 to 20 mg kg-1 in plant. The applicability of the proposed method was successfully evaluated by the extraction and determination of fenitrothion from some natural vegetable and water samples.

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