Magnetic Poly(Amidoamine) Dendrimer for the Dispersive Solid Phase Extraction of Nitrophenols from Environmental Water Samples

IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Hadi Ghanbarnejad, Vanik Ghoulipour, Faezeh Khalilian
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Abstract

A fast and simple dispersive solid phase extraction method is described for nitrophenols determination in water samples by using gas chromatography-nitrogen phosphorous detector. Firstly, the Poly(amidoamine) grafted Fe3O4 magnetic nanoparticles were synthesized in different generations by successive addition of butyl acrylate and ethylenediamine. After characterization, the prepared dendrimer was utilized as an adsorbent for magnetic solid phase extraction of 2-nitrophenol, 3-nitrophenol, and 4-nitrophenol to benefit large number of surface amine interaction sites. The effects of the different parameters influencing the sample preparation efficiency were investigated. The proposed method showed linearity in the ranges of 0.04–700 and 0.05–700 µg/dm3 for nitrophenols. The obtained limits of detection and quantification under optimized conditions were 0.01–0.02 and 0.04–0.05 µg/dm3, respectively. The relative standard deviations (n = 5) were less than 3.8% (at 10 µg/dm3). Moreover, the calculated enrichment factors were above 200. In addition, the relative recoveries for a spiked river water sample were satisfactory.

Abstract Image

磁性聚(氨基胺)树枝状聚合物用于分散固相萃取环境水样中的硝基苯酚
介绍了一种利用气相色谱-氮磷检测器快速、简便地测定水样中硝基苯酚含量的分散固相萃取法。首先,通过连续添加丙烯酸丁酯和乙二胺合成了不同世代的聚(氨基胺)接枝 Fe3O4 磁性纳米粒子。表征后,利用制备的树枝状聚合物作为吸附剂,对 2-硝基苯酚、3-硝基苯酚和 4-硝基苯酚进行磁性固相萃取,以获得大量的表面胺相互作用位点。研究了不同参数对样品制备效率的影响。所建议的方法在 0.04-700 和 0.05-700 µg/dm3 的范围内对硝基苯酚具有线性关系。在优化条件下获得的检测和定量限分别为 0.01-0.02 和 0.04-0.05 µg/dm3。相对标准偏差(n = 5)小于 3.8%(10 µg/dm3)。此外,计算得出的富集因子均高于 200。此外,加标河水样本的相对回收率也令人满意。
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来源期刊
CiteScore
5.60
自引率
3.70%
发文量
230
审稿时长
1.7 months
期刊介绍: The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.
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