Abstract In the present study, trace level of cadmium was determined by a new, sensitive and simple analytical method called as reverse phase dispersive liquid–liquid microextraction (RP-DLLME) combined to slotted quartz tube flame atomic absorption spectrometry (SQT-FAAS) system. Microextraction parameters such as type and volume of disperser solvent, volume of extraction solvent, heating effect, initial sample volume, final volume, centrifugation period and type/period of mixing were optimized. FAAS and SQT-FAAS systems were also examined to get high signal to noise ratio. After optimizing all significant parameters, the limit of detection (LOD) and limit of quantification (LOQ) of the developed analytical strategy were calculated as 0.74 and 2.48 μg/kg, respectively. In order to determine the applicability and accuracy of the RP-DLLME-SQT-FAAS method, recovery studies were performed in fish oil syrup. Matrix matching calibration strategy was used to eliminate heavy matrix effects on analytical signals, and percent recovery results were found between 95.6 and 105.7 %.

中文翻译：

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反相分散液-液微萃取结合开槽石英管火焰原子吸收光谱法作为鱼和橄榄油样品中镉痕量测定的新分析策略

摘要 在本研究中，通过一种称为反相分散液-液微萃取 (RP-DLLME) 的新型、灵敏且简单的分析方法结合开槽石英管火焰原子吸收光谱 (SQT-FAAS) 系统测定痕量镉。 . 优化了微萃取参数，如分散溶剂的类型和体积、萃取溶剂的体积、加热效应、初始样品体积、最终体积、离心时间和混合类型/时间。还检查了 FAAS 和 SQT-FAAS 系统以获得高信噪比。优化所有重要参数后，所开发分析策略的检测限 (LOD) 和定量限 (LOQ) 分别计算为 0.74 和 2.48 μg/kg。为了确定 RP-DLLME-SQT-FAAS 方法的适用性和准确性，在鱼油糖浆中进行了回收率研究。基质匹配校准策略用于消除基质对分析信号的严重影响，回收率结果在 95.6 至 105.7 % 之间。