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首页> 外文期刊>Polymers >Novel Functionalized Polythiophene-Coated Fe 3 O 4 Nanoparticles for Magnetic Solid-Phase Extraction of Phthalates
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Novel Functionalized Polythiophene-Coated Fe 3 O 4 Nanoparticles for Magnetic Solid-Phase Extraction of Phthalates

机译：新型官能化聚噻吩涂布的Fe 3 O 4纳米粒子用于邻苯二甲酸盐的磁性相 - 萃取

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Poly(phenyl-(4-(6-thiophen-3-yl-hexyloxy)-benzylidene)-amine) (P3TArH) was successfully synthesized and coated on the surface of Fe 3 O 4 magnetic nanoparticles (MNPs). The nanocomposites were characterized by Fourier transform infra-red (FTIR), X-ray diffractometry (XRD), Brunauer-Emmett-Teller (BET) surface area analysis, analyzer transmission electron microscopy (TEM) and vibrating sample magnetometry (VSM). P3TArH-coated MNPs (MNP@P3TArH) showed higher capabilities for the extraction of commonly-used phthalates and were optimized for the magnetic-solid phase extraction (MSPE) of environmental samples. Separation and determination of the extracted phthalates, namely dimethyl phthalate (DMP), diethyl phthalate (DEP), dipropyl phthalate (DPP), dibutyl phthalate (DBP), butyl benzyl phthalate (BBP), dicyclohexyl phthalate (DCP), di-ethylhexyl phthalate (DEHP) and di- n -octyl phthalate (DNOP), were conducted by a gas chromatography-flame ionization detector (GC-FID). The best working conditions were as follows; sample at pH 7, 30 min extraction time, ethyl acetate as the elution solvent, 500-μL elution solvent volumes, 10 min desorption time, 10-mg adsorbent dosage, 20-mL sample loading volume and 15 g·L ?1 concentration of NaCl. Under the optimized conditions, the analytical performances were determined with a linear range of 0.1–50 μg·L ?1 and a limit of detection at 0.08–0.468 μg·L ?1 for all of the analytes studied. The intra-day ( n = 7) and inter-day ( n = 3) relative standard deviations (RSD%) of three replicates were each demonstrated in the range of 3.7–4.9 and 3.0–5.0, respectively. The steadiness and reusability studies suggested that the MNP@P3TArH could be used up to five cycles. The proposed method was executed for the analysis of real water samples, namely commercial bottled mineral water and bottled fresh milk, whereby recoveries in the range of 68%–101% and RSD% lower than 7.7 were attained.
机译：在Fe 3 O 4磁性纳米颗粒（MNPS）的表面上成功地合成聚（苯基 - （4-（6-（6-苯酚-3-基己氧基） - 苄基）-MINE）（P3TARH）。纳米复合材料的特征在于傅里叶变换红外（FTIR），X射线衍射法（XRD），Brunauer-Emmett-Teller（Bet）表面积分析，分析仪透射电子显微镜（TEM）和振动样品磁体（VSM）。 P3Tarh涂覆的MNP（MNP @ P3TarH）显示出常用邻苯二甲酸盐的提取的更高能力，并针对环境样品的磁性固相萃取（MSPE）进行了优化。分离和测定萃取的邻苯二甲酸盐，即邻苯二甲酸二甲酯（DMP），邻苯二甲酸二乙酯（DEPP），邻苯二甲酸二丁酯（DBP），邻苯二甲酸二丁酯（BBP），双邻苯二甲酸酯（DCP），邻苯二甲酸二乙酯（DCP），二乙酯（DCP）。 （DeHP）和邻苯二甲酸酯（DNOP），通过气相色谱 - 火焰电离检测器（GC-FID）进行。最好的工作条件如下;在pH7，30分钟提取时间，乙酸乙酯作为洗脱溶剂，500μL洗脱溶剂体积，10分钟解吸时间，10mg吸附剂剂量，20-mL样品负载量，15g·L？1浓度NACL。在优化的条件下，测定分析性能，线性范围为0.1-50μg·l≤1，对于所有研究的分析物，在0.08-0.468μg·l≤1的检测限。三次重复的日期（n = 7）和日内（n = 3）相对标准偏差（RSD％）分别在3.7-4.9和3.0-5.0的范围内进行说明。稳定性和可重用性研究表明MNP @ P3Tarh最多可使用多达五个周期。针对实际水样的分析，即商业瓶装矿泉水和瓶装新鲜牛奶进行了该方法，从而实现了68％-101％和低于7.7的回收率。

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