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Development of Magnetic Dispersive Micro-solid Phase Extraction Based on Magnetic Agarose Nanoparticles and Deep Eutectic Solvents for the Isolation and Pre-concentration of Three Flavonoids in Edible Natural Samples by Seyedeh Maedeh Majidi; Mohammad Reza Hadjmohammadi is a Chemistry article available to read on EtoBox.

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In the present study, an environmentally friendly magnetic dispersive micro-solid phase extraction was developed based on magnetic agarose nanoparticles and deep eutectic solvents for the isolation and pre-concentration of three flavonoids (morin, quercetin, and kaempferol) from dark tea, chocolate, vegetable, and fruit juice samples. In this method, deep eutectic solvents were synthesized from less toxic and low-cost substances under feasible conditions and used as eluents in the desorption process. These solvents can be considered as a green alternative to traditional organic reagents to increase the adsorption capacity and reduce the matrix interferences, dangerous waste generation and environmental pollution. A Plackett-Burman design was employed for screening the experimental variables. The effective variables were then optimized by Box-Behnken design (BBD). Under the optimial conditions, the presented method demonstrated wide linear ranges of 1-500 μg. L for morin and quercetin, and 5-500 μg. L for kaempferol with satisfactory recoveries above 91%. Limit of detections (LODs) and quantifications (LOQs) of flavonoids varied in 0.2-1.1 μg. L and 0.66-3.63 μg. L, respectively. Th

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Author

Seyedeh Maedeh Majidi; Mohammad Reza Hadjmohammadi

Published

2020

Language

EN

Field

Chemistry (Physical Sciences)