制备新型磁性离子印迹聚合物并利用 Box-Behnken 设计进行优化，以选择性去除和测定食品和废水中的 Cu(II)。
Preparation of a new magnetic ion-imprinted polymer and optimization using Box-Behnken design for selective removal and determination of Cu(II) in food and wastewater samples.
机构信息
Analytical Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
Analytical Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
出版信息
Food Chem. 2021 Jan 1;334:127563. doi: 10.1016/j.foodchem.2020.127563. Epub 2020 Jul 18.
A new magnetic Cu(II) IIP (FeO@IIP-IDC) is synthesized by polymerization of Imidazole-4,5-dicarboxylic acid functionalized Allyl chloride, and significant improvement of its performance has been compared. SPE parameters were optimized using Box-Behnken design to achieve the twin objectives of quantitative determination and removal of Cu(II). FLPSO kinetic model and BS isotherm model fits well with the capacity of 175 mg g. Analytical figures of merit includes a linearity range of 10-5,000 µg L (R = 0.9986), preconcentration factor of 50 after eluting with 5 mL of 1 M HNO, LOD of 1.03 µg L and LOQ of 4.5 µg L. Accuracy was assessed by analysis of SRM (Standard Reference Material) and recovery experiments after spiking in food samples (Tea, coffee, chocolate, spinach, infant milk substitute) and battery wastewater. Ease of use, reusability (15 cycles), rapid adsorption and high selectivity makes it a promising candidate for efficient and selective removal and trace determination.
一种新型磁性 Cu(II) IIP（FeO@IIP-IDC）是通过聚合功能化烯丙基氯的咪唑-4,5-二羧酸合成的，对其性能进行了显著的改进。使用 Box-Behnken 设计优化 SPE 参数，以实现定量测定和去除 Cu(II) 的双重目标。FLPSO 动力学模型和 BS 等温线模型很好地拟合了 175 mg g 的容量。分析的优点包括 10-5,000 µg L（R = 0.9986）的线性范围，用 5 mL 1 M HNO 洗脱后的预浓缩因子为 50，LOD 为 1.03 µg L，LOQ 为 4.5 µg L。通过对标准参考物质（SRM）的分析和对茶叶、咖啡、巧克力、菠菜、婴儿配方奶和电池废水等食品样品进行加标回收实验来评估准确性。使用方便、可重复使用（15 次）、快速吸附和高选择性使其成为高效、选择性去除和痕量测定的有前途的候选物。
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