利用疏水性深共晶溶剂从饮料中萃取合成色素的液-液微萃取。
Liquid-liquid microextraction of synthetic pigments in beverages using a hydrophobic deep eutectic solvent.
机构信息
Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China; Gansu Food Inspection and Research Institute, Lanzhou, China.
Gansu Food Inspection and Research Institute, Lanzhou, China.
出版信息
Food Chem. 2018 Mar 15;243:351-356. doi: 10.1016/j.foodchem.2017.09.141. Epub 2017 Sep 28.
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.
建立了一种采用液液微萃取结合高效液相色谱法测定饮料样品中 8 种合成色素的方法。以疏水性深共晶溶剂（DES）作为微萃取溶剂，优化了多个关键参数，包括疏水性 DES 的种类和体积、pH 值、涡旋时间和盐含量。检测限在 0.016-1.12ng/mL 范围内，回收率在 74.5%-102.5%范围内，相对标准偏差均<5.4%。该方法简单、绿色、实用，可用于饮料中合成色素的提取和测定。
Zotero 插件