Extraction of nickel from edible oils with a complexing agent prior to determination by FAAS.
Extraction of nickel from edible oils with a complexing agent prior to determination by FAAS.
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DOI：
10.1016/j.foodchem.2015.11.001
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发表时间：
2016-04
期刊：
影响因子：
8.8
通讯作者：
Feyzullah Tokay;Sema Bağdat
中科院分区：
文献类型：
--
作者：
Feyzullah Tokay;Sema Bağdat
本文报道了一种从食用油中萃取分离镍并用火焰原子吸收法测定的新方法。用N，N′-双（4-甲氧基水杨醛）乙二胺（MSE）从油相中萃取Ni（II）离子到水相中，用火焰原子吸收法测定。用电化学方法研究了MSE与Ni（II）形成配合物的性质。中心复合设计（CCD）用于优化MSE到油、搅拌时间和温度，其分别为0.97 mL g-1、15.4 min和29.7 °C。用油基金属标准品进行了测定，回收率为93.8 ± 3.9%。该方法适用于五种不同的食用油。
In the present work, a new extraction method for separation of nickel from edible oils and determination by FAAS is reported. This method is based on extraction of Ni(II) ions from the oil to aqueous phase with N,N′-bis(4-methoxysalicylidene) ethylenediamine (MSE) and determination by FAAS. Properties of the complex formed between MSE and Ni(II) were investigated spectrophotometrically. Central composite design (CCD) was utilized for optimization of MSE to oil, stirring time and temperature, which were 0.97 mL g−1, 15.4 min, and 29.7 °C, respectively. The developed method was tested with an oil-based metal standard and the recovery was 93.8 ± 3.9%. The proposed method was applied with five different edible oils.