Abstract
In the present study, a new approach that uses ultrasound-assisted extraction clean-up combined with dispersive liquid-liquid microextraction has been developed for the preconcentration of trace amounts of clodinafop-propargyl herbicide in wheat samples. The clodinafop-propargyl was then determined using gas chromatography with flame ionization detection. In this technique, wheat samples were extracted by ultrasound-assisted extraction followed by a dispersive liquid-liquid microextraction (DLLME) step for further purification and enrichment of clodinafop-propargyl. By using a Pasteur pipette as an extraction device, a low-density extraction solvent like water is possible to use in the DLLME method. The effects of various parameters on the extraction efficiency of the proposed technique were investigated and optimized. Good linearity was obtained from 20 to 1000 µg/kg. The limit of detection was 10 µg/kg (S/N = 3). The relative recoveries at the three spiked levels ranged from 88 to 96% with an RSD less than 13% (n = 3). The technique has been successfully applied to the determination of clodinafop-propargyl herbicide in wheat samples.
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Rezaee, M., Khalilian, F. Ultrasound-Assisted Extraction Combined with Low-Density Solvent-Based Dispersive Liquid-Liquid Microextraction as an Efficient and Sensitive Method for the Determination of Clodinafop-Propargyl Herbicide in Wheat Samples. J Anal Chem 79, 540–545 (2024). https://doi.org/10.1134/S1061934824050083
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DOI: https://doi.org/10.1134/S1061934824050083