Separation/preconcentration and determination of quercetin in food samples by dispersive liquid-liquid microextraction based on solidification of floating organic drop -flow injection spectrophotometry

被引：28

作者：

Asadollahi, Tahereh ^{[1
]}

Dadfarnia, Shayessteh ^{[1
]}

Shabani, Ali Mohammad Haji ^{[1
]}

Amirkavei, Mooud ^{[1
]}

机构：

[1] Yazd Univ, Fac Sci, Dept Chem, Yazd 89195741, Iran

来源：

JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE | 2015年 / 52卷 / 02期

关键词：

Quercetin; Dispersive liquid-liquid microextraction based on solidification of floating organic drop; Spectrophotometery; Separation and preconcentration; ATOMIC-ABSORPTION-SPECTROMETRY; SOLID-PHASE EXTRACTION; RED WINE; CAPILLARY-ELECTROPHORESIS; NONIONIC SURFACTANT; GAS-CHROMATOGRAPHY; FLAVONOL QUERCETIN; HUMAN URINE; HPLC; 1-(2-PYRIDYLAZO)-2-NAPHTHOL;

D O I：

10.1007/s13197-013-1077-9

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

A new dispersive liquid-liquid microextraction based on solidification of floating organic drop (DLLME-SFOD)-flow injection spectrophotometry (FI) method for the separation and preconcentration of trace amounts of quercetin was developed. 1-Undecanol and methanol was used as the extraction and disperser solvent, respectively. The factors influencing the extraction by DLLME-SFOD such as the volume of the extraction and disperser solvents, pH and concentration of salt were optimized. The optimal conditions were found to be; volume of the extraction solvent, 80 mu L; the volume of the disperser solvent, 100 mu L; and the pH of the sample, 3. The linear dynamic range and detection limit were 5.0x10(-8)-5.0x10(-7) mol L-1 and 1x10(-8) mol L-1, respectively. The relative standard deviation (R. S. D.) at 6.1x10(-8) mol L-1 level of quercetin (n=10) was found to be 2.8 %. The method was successfully applied to the determination of quercetin in the apple, grape, onion and tomato samples.

引用

页码：1103 / 1109

页数：7

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