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Development of a hydrophilic magnetic amino-functionalized metal-organic framework for the highly efficient enrichment of trace bisphenols in river water samples.
Talanta ( IF 5.6 ) Pub Date : 2020-01-07 , DOI: 10.1016/j.talanta.2020.120713
Yuan Yuan 1 , Xiaowei Zheng 1 , Haizhu Lin 2 , Yanyao Li 1 , Meng Yang 1 , Xianglin Liu 1 , Chunhui Deng 3 , Zhengqiu Fan 1
Affiliation  

Bisphenols, a typical pollutant with endocrine acting the scientific attention for their ascertained toxicity and wide uses. The magnetic Zr-MOFs (Fe3O4@PDA@UiO-66-NH2), functionalized with amino groups and proved by a series of material characterization techniques, were successfully prepared as adsorbents for magnetic solid-phase extraction (MSPE) of five bisphenols (including bisphenol A, bisphenol B, bisphenol S, bisphenol AP and bisphenol AF) from water samples. Liquid chromatography coupled with tandem mass spectrometry was used for sample analysis and quantification. Good linearity was obtained for each analyte with correlation coefficients larger than 0.990. The low limits of detection (LOD) and qualification (LOQ) were 0.013-0.290 μg/L (S/N = 3) and 0.088-1.800 μg/L (S/N = 10), respectively. The repeatability standard deviations in spiked lake water samples were 0.57-1.67%. In addition, the amount of the materials (40 mg), the adsorption time (30 min), pH value (7), elution time (30 min) and elution solvent (methanol) were determined as the optimal parameters in bisphenol extraction. Satisfactory results were obtained when the developed MSPE method was applied to determine the five bisphenols in real lake water samples, and the maximum extraction efficiency was up to 78.2%. The developed MSPE method using the Fe3O4@PDA@UiO-66-NH2 as adsorbent provides time saving, high selectivity and sensitivity for the analysis of trace bisphenols, suggesting that the Fe3O4@PDA@UiO-66-NH2 had a broad application prospect in water analysis.

中文翻译:

亲水磁性氨基官能化金属有机骨架的开发,可高效富集河水样品中的痕量双酚。

双酚是一种典型的内分泌污染物,因其确定的毒性和广泛的用途而受到科学的关注。已成功制备了具有氨基官能团并通过一系列材料表征技术证明的磁性Zr-MOFs(Fe3O4 @ PDA @ UiO-66-NH2)作为五种双酚(包括水样中的双酚A,双酚B,双酚S,双酚AP和双酚AF)。液相色谱与串联质谱联用用于样品分析和定量。每种分析物均具有良好的线性,相关系数大于0.990。检测下限(LOD)和鉴定(LOQ)分别为0.013-0.290μg/ L(S / N = 3)和0.088-1.800μg/ L(S / N = 10)。加标的湖水样品中的重复性标准偏差为0.57-1.67%。另外,确定了双酚提取中的最佳原料量(40 mg),吸附时间(30 min),pH值(7),洗脱时间(30 min)和洗脱溶剂(甲醇)。采用改进的MSPE方法测定真实湖水样品中的五种双酚,结果令人满意,最大萃取效率高达78.2%。以Fe3O4 @ PDA @ UiO-66-NH2为吸附剂开发的MSPE方法为痕量双酚的分析提供了节省时间,高选择性和高灵敏度的结果,表明Fe3O4 @ PDA @ UiO-66-NH2的应用前景广阔。水分析。确定了双酚提取的最佳吸附时间(30 min),pH值(7),洗脱时间(30 min)和洗脱溶剂(甲醇)。采用改进的MSPE方法测定真实湖水样品中的五种双酚,结果令人满意,最大萃取效率高达78.2%。以Fe3O4 @ PDA @ UiO-66-NH2为吸附剂开发的MSPE方法为痕量双酚的分析提供了节省时间,高选择性和高灵敏度的结果,表明Fe3O4 @ PDA @ UiO-66-NH2的应用前景广阔。水分析。确定了双酚提取的最佳吸附时间(30min),pH值(7),洗脱时间(30min)和洗脱溶剂(甲醇)。采用改进的MSPE方法测定真实湖水样品中的五种双酚,结果令人满意,最大萃取效率高达78.2%。以Fe3O4 @ PDA @ UiO-66-NH2为吸附剂开发的MSPE方法为痕量双酚的分析提供了节省时间,高选择性和高灵敏度的结果,表明Fe3O4 @ PDA @ UiO-66-NH2的应用前景广阔。水分析。采用改进的MSPE方法测定真实湖水样品中的五种双酚,结果令人满意,最大萃取效率高达78.2%。以Fe3O4 @ PDA @ UiO-66-NH2为吸附剂开发的MSPE方法为痕量双酚的分析提供了节省时间,高选择性和高灵敏度的结果,表明Fe3O4 @ PDA @ UiO-66-NH2的应用前景广阔。水分析。采用改进的MSPE方法测定真实湖水样品中的五种双酚,结果令人满意,最大萃取效率高达78.2%。以Fe3O4 @ PDA @ UiO-66-NH2为吸附剂的已开发的MSPE方法为痕量双酚的分析提供了节省时间,高选择性和高灵敏度的方法,表明Fe3O4 @ PDA @ UiO-66-NH2的应用前景广阔。水分析。
更新日期:2020-01-07
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