Abstract
In the present research, several novel and natural hydrophobic deep eutectic solvents (DESs) were prepared using methyltrioctylammonium chloride (MTOAC) as the hydrogen bond acceptor (HBA) and different types of straight chain alcohols as hydrogen bond donors (HBDs). One of the DESs composed of MTOAC and n-butanol was advantageously used to develop a vortex-assisted liquid phase microextraction (VALPME) method combined with high-performance liquid chromatography-ultraviolet detection (HPLC-UV) for the determination of common acaricides in fruit juice samples. Several important parameters influencing extraction efficiency were investigated and optimized, including the type and volume of DES, sample solution pH, effect of salt addition and, extraction and vortex time. Under optimal experimental conditions, the method showed good linearity with the correlation coefficients (R2) of 0.9986–0.9991 in the linear range of 2–300 μg L−1, low limits of detection of 0.5–1 μg L−1 and acceptable extraction recoveries in the range of 85–93%. The proposed method was successfully applied for the extraction and preconcentration of trace acaricides in real fruit juice samples, and the results demonstrated the potential of the synthesized DESs for the extraction and determination of contaminants in aqueous samples.
Highlights
In the present century, many efforts have been made to improve and increase agricultural products
Relative recoveries for all acaricides in different samples are between 92–107. These results demonstrate that the fruit juice matrices, in our present context, have no signi cant effect on deep eutectic solvents (DESs)-vortex-assisted liquid phase microextraction (VALPME)-high-performance liquid chromatography-ultraviolet detection (HPLC-UV) for determination of acaricides
Unlike the DLLME method, in this method the disperser solvent is not required. All these results indicate that DES-VALPME is a simple, inexpensive and reproducible technique that can be used for the extraction of acaricides in fruit juice
Summary
Many efforts have been made to improve and increase agricultural products. It was well known that with the continuous development of technology, in addition to the common solidphase extraction (SPE) and solid-phase microextraction (SPME) methods, liquid-phase extraction and liquid-phase microextraction (LPME) methods have been popular among researches In these methods the analyte is extracted into a proper solvent at mL or microliter level.[11] The used solvent must be immiscible with the sample and form a two-phase system a er extraction. Several novel hydrophobic DESs were synthesized and investigated for the VA-LPME technique of three common acaricides (clofentezine, fenpyroximate and pyridaben) from fruit juice samples in combination with highperformance liquid chromatography coupled with an ultraviolet detection (HPLC-UV). The proposed hydrophobic deep eutectic solvent for vortex-assisted liquid phase microextraction (DES-VALPME) method was validated under the optimized conditions and employed for the determination of common acaricides in real fruit juice samples
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
