Liquid-liquid microextraction of synthetic pigments in beverages using a hydrophobic deep eutectic solvent

被引：134

作者：

Zhu, Shuqiang ^{[1
,2
,3
]}

Zhou, Jia ^{[3
]}

Jia, Hongfang ^{[3
]}

Zhang, Haixia ^{[1
,2
]}

机构：

[1] Lanzhou Univ, Key Lab Nonferrous Met Chem & Resources Utilizat, Lanzhou, Gansu, Peoples R China

[2] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou, Gansu, Peoples R China

[3] Gansu Food Inspect & Res Inst, Lanzhou, Gansu, Peoples R China

来源：

FOOD CHEMISTRY | 2018年 / 243卷

基金：

美国国家科学基金会;

关键词：

Hydrophobic deep eutectic solvent; Liquid-liquid microextraction; Synthetic pigments; FOOD COLORANTS; IONIC LIQUIDS; CHOLINE CHLORIDE; CHROMATOGRAPHY; EXTRACTION; MIXTURES; SAMPLES; DYES; SEPARATION; PRODUCTS;

D O I：

10.1016/j.foodchem.2017.09.141

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A method was developed for the determination of eight synthetic pigments in beverage samples by liquid-liquid microextraction followed by high performance liquid chromatography. Using hydrophobic deep eutectic solvent (DES) as the microextraction solvent, several key parameters were optimized, including the type and volume of the hydrophobic DES, pH value, vortex time and salt content. Detection limits were in the range 0.016-1.12 ng/mL, recoveries were in the range 74.5-102.5% and relative standard deviations were < 5.4%. The method is simple, green and practical, and could be applied to the extraction and determination of synthetic pigments in beverages.

引用

页码：351 / 356

页数：6

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