Mansoor Ahmad, Amir Badshah, Hongji Li, Muhammad Asad, Mohamed A. Ibrahim, Essam A. Ali, Abdelaaty A. Shahat, Umar Nishan, Mansoor Khan, Wei Sun
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引用次数: 0
摘要
重金属的过度积累会对人体产生不良影响。这里合成了磁性氧化铁浸渍的羧甲基-β-环糊精。该合成材料被用作特定重金属如铅(Pb)、镍(Ni)、铜(Cu)和钴(Co)的磁性固相萃取吸附剂。表征方法包括 X 射线衍射、能量色散 X 射线光谱、扫描电子显微镜、布鲁瑙尔-艾美特-泰勒和傅立叶变换红外光谱。计算了检测限(铅:1.38 纳克/毫升,镍:0.5 纳克/毫升,钴:0.14 纳克/毫升,铜:0.55 纳克/毫升)和定量限(铅:4.14 纳克/毫升,镍:1.62 纳克/毫升,钴:1.85 纳克/毫升,铜:1.82 纳克/毫升)等分析优点。同样,还计算了预浓缩因子和增强因子 (15) 以及相对标准偏差(铅:3.5;镍:0.92;钴:2.7;铜:1.5)。干扰研究表明,该方法具有高度的选择性。在验证过程中,将该方法应用于核化学与技术研究所的观赏巴斯马烟叶和痕量金属双加 63.4 环境水等经认证的参考物质,回收率为 92%-99%。此外,还使用了真实水和食品样品,回收率也令人满意(90%-99%)。
Vortex-Assisted Magnetic Solid-Phase Extraction of Heavy Metals in Water and Food Samples Using Iron Oxide Nanoparticle-Impregnated Carboxymethyl-β-Cyclodextrin
The excessive accumulation of heavy metals has adverse effects on the human body. Here, magnetic iron oxide-impregnated carboxymethyl-β-cyclodextrin was synthesized. The synthesized material was employed as a magnetic solid-phase extracting adsorbent for specific heavy metals like lead (Pb), nickel (Ni), copper (Cu), and cobalt (Co). Characterization was performed by X-ray diffraction, energy dispersive X-ray spectroscopy, scanning electron microscopy, Brunauer–Emmett–Teller, and Fourier-transform infrared spectroscopy. The analytical merits, like detection limits (Pb: 1.38 ng/mL, Ni: 0.5 ng/mL, Co: 0.14 ng/mL, and Cu: 0.55 ng/mL) and quantification limits (Pb: 4.14 ng/mL, Ni: 1.62 ng/mL, Co: 1.85 ng/mL, and Cu: 1.82 ng/mL) were calculated. Similarly, the preconcentration and enhancement factors (15) and relative standard deviation (Pb: 3.5, Ni: 0.92, Co: 2.7, and Cu: 1.5) were also calculated. The interfering study shows that the method is highly selective. For validation, it was applied to certified reference materials such as the Institute of Nuclear Chemistry and Technology ornamental Basma tobacco leaves and trace metal double addition 63.4 environmental water with good percent recovery values (92%–99%). Real water and food samples were also used with satisfactory (90%–99%) recovery results.
期刊介绍:
The Journal of Separation Science (JSS) is the most comprehensive source in separation science, since it covers all areas of chromatographic and electrophoretic separation methods in theory and practice, both in the analytical and in the preparative mode, solid phase extraction, sample preparation, and related techniques. Manuscripts on methodological or instrumental developments, including detection aspects, in particular mass spectrometry, as well as on innovative applications will also be published. Manuscripts on hyphenation, automation, and miniaturization are particularly welcome. Pre- and post-separation facets of a total analysis may be covered as well as the underlying logic of the development or application of a method.