Mohammadzadeh Ali, Amiri Mahboobeh
Department of Chemistry, Faculty of Science, Islamic Azad University-Arak Branch, Arak, Iran.
Young Researchers and Elite Club, Arak Branch, Islamic Azad University, Arak, Iran.
Heliyon. 2024 Mar 5;10(5):e27611. doi: 10.1016/j.heliyon.2024.e27611. eCollection 2024 Mar 15.
A new, rapid, simple, and sensitive preconcentration method and Spectrophotometry determination technique have been presented for the microextraction and determination of trace amount of Tartrazine dye in food samples. In the present system, which is called "Magnetic stirring in syring dispersive liquid-liquid microextraction"(MSIS- DLLME), a cloudy state result is formed in a homemade glass syringe by magnetic agitation. In the MSIS-DLLME system, Tartrazine colour was uprooted into an organic detergent (Toluene) after many twinkles. Subsequently, the organic detergent which was placed on top of the result was transferred into a narrow neck by moving the piston overhead. The effective parameters on the extraction recovery were studied and optimized by Central Composite design (CCD). Under the optimum conditions, the estimation cure is direct in the range of 0.1-1(μg L). The limit of detection (LOD), relative standard divagation and enrichment factor were 0.03 μg L , ±4.6 (n = 10) and 166, independently. The advanced system was successfully applied for microextraction of Tartrazine in food samples.
提出了一种新的、快速、简单且灵敏的预浓缩方法及分光光度测定技术，用于食品样品中微量柠檬黄染料的微萃取和测定。在本系统中，即所谓的“注射器分散液液微萃取中的磁力搅拌”（MSIS - DLLME），通过磁力搅拌在自制玻璃注射器中形成浑浊状态。在MSIS - DLLME系统中，经过多次闪烁后，柠檬黄颜色被萃取到有机洗涤剂（甲苯）中。随后，通过向上移动活塞将位于溶液顶部的有机洗涤剂转移到窄颈处。采用中心复合设计（CCD）研究并优化了对萃取回收率有影响的参数。在最佳条件下，测定曲线在0.1 - 1（μg/L）范围内呈线性。检测限（LOD）、相对标准偏差和富集因子分别为0.03 μg/L、±4.6（n = 10）和166。该先进系统成功应用于食品样品中柠檬黄的微萃取。
