Molecularly imprinted polymers using high-performance liquid chromatography to detect and determine ethion pesticide in apricot, grapes, strawberry and soil samples

ABSTRACT

This paper demonstrates the synthesis of molecularly imprinted polymers-solid phase extraction-liquid chromatography method at room temperature using bulk polymerisation of ethion pesticide, by high sensitivity, low costs and high stability. By making MIP for ethion as ethion-MIP, which could be detected with a UV-Vis spectrophotometer at 276 nm, a functional monomer of acrylic acid with cross-linking ethylene glycol dimethyl acrylate. The high-performance liquid chromatography methods developed in this study are accurate, sensitive, and precise to apricot, grapes, strawberry and soil samples. The elution process to the template ethion from the ethion-MIP, caused by minimum volume using solution of 1.0 mL of methanol-acetic acid (9:1) was obtained. Different factors affecting the reaction were studied and optimised. The calibration plot is linear in the concentration range of (0.02 to 1.0 µg mL⁻¹). The relative standard deviations of (±2.0%) and detection limit of the method are 0.02 µg mL⁻¹, and the maximum imprinting factor of ethion-MIP was 6.8 mgg⁻¹. The results obtained the evidence of efficiency and reliability of the method for the ethion pesticide analysis and estimation for the capacitance of molecular imprinted polymer, analytical technical method by molecularly imprinted polymer and high-performance liquid chromatography.

KEYWORDS:

• Ethion pesticide
• molecularly imprinted polymers
• high-performance liquid chromatography
• grapes samples
• strawberry samples
• soil samples

Acknowledgments

The authors gratefully acknowledge the support of this work by the Islamic Azad University, Branch of Islamshahr, Iran.

Disclosure statement

No potential conflict of interest was reported by the author(s).