Abstract
ABSTRACT A microwave-assisted quick-easy-cheap-effective-rugged-safe method based on deep eutectic solvent was combined with lighter than water organic solvent-based-dispersive liquid–liquid microextraction for the extraction and preconcentration of some benzoylurea insecticides from cabbage samples. In this procedure, a portion of the crushed cabbage leaves are mixed with N,N-dimethyl ammonium chloride:ethylene glycol deep eutectic solvent and exposure to microwave radiations. Then, the mixture is centrifuged and the supernatant phase is removed and mixed with toluene. It is dispersed into the deionised water filled into a closed head (wide section) glass pipette. The obtained emulsion is broken using acetonitrile as a demulsifier. Under optimum conditions, the introduced method indicated high enrichment factors (260–425), low limits of detection (0.66–1.3 ng g−1) and quantification (2.2–4.4 ng g−1), good linearity (r2 ≥ 0.9987) and satisfactory repeatability (relative standard deviation ≤7.1 at a concentration of 15 ng g−1 of each analyte). Finally, the proposed method was utilised in the analysis of the analytes in cabbage leaves and hexaflumuron was determined in several samples.
Sign-in/Register to access full text options 
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 callMore From: International Journal of Environmental Analytical Chemistry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
