Ionic liquid-based cloud-point extraction of quercetin for its sensitive HPLC–UV determination in juice samples

• Autorzy: Rasoolzadeh F. , Hashemi P. , Nazari S. F

Identyfikatory

DOI

10.1556/1326.2016.28205

• Języki publikacji: EN

Abstrakty

EN

An ionic liquid-based cloud-point extraction (IL-CPE) method was developed for the extraction of quercetin in juice samples before its determination by high-performance liquid chromatography (HPLC). 1-Butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) was used as the ionic liquid. The cloud-point extraction parameters such as sample pH, extraction temperature, extraction time, amount of ionic liquid, extraction volume, and salt concentration were carefully studied and optimized for the achievement of maximum extraction recovery. Under the optimized conditions, i.e., 20 min heating at 40 °C, 100 μL IL volume, pH 2.0, and no salt addition, a mean recovery of 92.5% and an enrichment factor of 20 were obtained for quercetin. Relative standard deviation of the method was 3.76% for 6 replicates, and the calculated detection limit (3σ) of quercetin was 0.002 mg L−1. The method, coupled to HPLC was successfully applied to the sensitive determination of quercetin in apple and gapes juice samples with quantitative recoveries.

Słowa kluczowe

EN

Apple juice; grape juice; ionic liquid; cloud-point extraction; HPLC

• Wydawca: University of Silesia in Katowice ; Akademiai Kiado
• Czasopismo: Acta Chromatographica
• Rocznik: 2017
• Tom: Vol. 29, no. 4
• Strony: 493--496
• Opis fizyczny: Bibliogr. 27 poz., rys., tab.

Twórcy

autor

Rasoolzadeh F.

• Department of Chemistry, Faculty of Science, Lorestan University, Khoramabad, Iran

autor

Hashemi P.

autor

Nazari S. F

• Department of Chemistry, Faculty of Science, Lorestan University, Khoramabad, Iran

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).