Optimization deep eutectic solvent-based ultrasound-assisted liquid-liquid microextraction by using the desirability function approach for extraction and preconcentration of organophosphorus pesticides from fruit juice samples
| Autor: | Samira Ghanbari-Rad, Esmaeil Habibi, Hassan Heidari |
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| Rok vydání: | 2020 |
| Předmět: |
Detection limit
0303 health sciences Chromatography Central composite design 030309 nutrition & dietetics Sonication 010401 analytical chemistry Extraction (chemistry) 01 natural sciences 0104 chemical sciences Deep eutectic solvent 03 medical and health sciences chemistry.chemical_compound chemistry Linear range Phosalone Quantitative analysis (chemistry) Food Science |
| Zdroj: | Journal of Food Composition and Analysis. 87:103389 |
| ISSN: | 0889-1575 |
| DOI: | 10.1016/j.jfca.2019.103389 |
| Popis: | A deep eutectic solvent-based ultrasound-assisted liquid-liquid microextraction (DES-UALLME) followed by quantitative analysis using HPLC-UV has been developed for the determination of organophosphorus pesticides (phosalone and chlorpyrifos) in fruit juice samples (red grape juice and sour cherry juice). In DES-UALLME, ultrasonication was applied to transfer the aggregated of DES into tiny droplets. The parameters that influence on extraction efficiency were studied and optimized by central composite design (CCD) in combination with a desirability function approach. The optimum conditions obtained by multivariate optimization were 408 μL of DES, 560 μL of THF, pH of 5.92, and an ultrasonication time of 12.31 min. Under the optimized condition, wide linear range (1–500 ng mL−1), low detection limits (0.070 and 0.096 ng mL−1), high enrichment factors, and good extraction recoveries were obtained. The procedure was successfully applied for the determination of phosalone and chlorpyrifos in red grape juice and sour cherry juice samples with satisfactory relative recoveries (87.3–116.7 %). |
| Databáze: | OpenAIRE |
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