Abstract
This research presents the use of deep eutectic solvents as a green and cost-effective extraction solvent in dispersive liquid–liquid microextraction of cadmium in food and environmental water specimen, where sodium diethyldithiocarbamate was employed as a complexing agent. A flame atomic absorption spectrometer was then used to quantify cadmium. The impacts of some effective variables such as deep eutectic solvent type and volume, pH, disperser solvent type and volume, diethyldithiocarbamate concentration, and extraction time were examined and optimized. Under optimal conditions, limit of detection was measured as 0.9 μg/L, while limit of quantification, enrichment factor, and relative standard deviation were 2.9 μg/L, 50, and 1.4%, respectively. The developed extraction method was successfully employed for Cd quantification in food and water. Recoveries of spiked samples varied in the range of 96.0–102.5%.
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The author gratefully appreciates the support provided by Payame Noor University.
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Jamali, M., Nakhaei, J.M., Sohrabnezhad, S. et al. A Green-Solvent Based Dispersive Liquid–Liquid Microextraction for Preconcentration and Cadmium Determination in Water and Food Samples by Flame Atomic Absorption Spectrometry. J Anal Chem 78, 980–987 (2023). https://doi.org/10.1134/S1061934823080075
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DOI: https://doi.org/10.1134/S1061934823080075