A simple, sensitive, effective and rapid liquid-phase microextraction (LPME) method based on deep eutectic solvent (DES) was developed for the preconcentration and determination of erythrosine in the drug, water and powdered fruit juice samples prior to its UV–VIS spectrophotometric determination. In the DES-LPME study, the analytical parameters affected on extraction efficiency of the analyte were optimized. Under the optimum experimental conditions, the limits of detection and limit of quantification were obtained as 0.53 µg L⁻¹ and 1.78 µg L⁻¹, respectively. The preconcentration factor was calculated as 100. Accuracy of the proposed microextraction method has been checked by analyzing the addition–recovery studies to in real samples and satisfactory results were obtained.

中文翻译：

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在紫外-可见分光光度法检测之前，基于深共熔溶剂的绿色和简单液相微萃取，用于赤藓红

建立了一种基于深共熔溶剂（DES）的简单，灵敏，有效，快速的液相微萃取（LPME）方法，用于在紫外可见分光光度法之前对药物，水和果汁粉样品中的赤藓红进行浓缩和测定。决心。在DES-LPME研究中，优化了影响分析物提取效率的分析参数。在最佳实验条件下，检测限和定量限分别为0.53 µg L ^-1和1.78 µg L ^-1。计算出的预浓缩系数为100。通过分析实际样品中的加-回收研究，对所提出的微萃取方法的准确性进行了检查，并获得了满意的结果。