AbstractA porous material (polytriphenylamine; PTPA) was synthesized by using triphenylamine as the monomer and dimethoxymethane as the cross-linker. PTPA was characterized by Fourier infrared spectrometry, X-ray diffraction measurements, scanning electron microscopy and N2 adsorption-desorption isotherms. The PTPA has a spherical-shape morphology and relatively high specific surface area. It is shown to be a viable adsorbent for solid phase extraction of 3-chlorophenol, 2,3-dichlorophenol, 2,4-dichlorophenol and 2,4.6-trichlorophenol prior to their determination by high performance liquid chromatography-mass spectrometry. Under the optimized conditions, recoveries from spiked samples are in the range from 92.5% to 106.3%. The limits of detection range from 0.03 to 0.3 ng mL−1 (at an S/N ratio of 3) in case of bottled juice, and from 0.03 to 0.1 ng g−1 in case of tomato samples. The enrichment factors for the four analytes are in the range of 127–183 for bottle juice, and from 110–150 for tomatos. Response is linear in the range of 1.0 to 40.0 ng mL−1 for juice, and 0.3–40.0 ng g−1 for tomatos. The relative standard deviations for the determination of the chlorophenols at 20 ng mL−1 in bottled beverage, and 20 ng g−1 in tomatos are lower than 5.7%. Graphical abstractA polytriphenylamine polymer (PTPA) was prepared by using an external cross-linker method with triphenylamine as monomer and dimethoxymethane as cross-linker, and it was used as an adsorbent to extract chlorophenols from juice and vegetable samples.

中文翻译：

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一种用作提取氯酚的吸附剂的超交联聚合物

摘要 以三苯胺为单体，二甲氧基甲烷为交联剂，合成了一种多孔材料（聚三苯胺；PTPA）。PTPA 的特点是傅里叶红外光谱、X 射线衍射测量、扫描电子显微镜和 N2 吸附-解吸等温线。PTPA 具有球形形态和相对较高的比表面积。在通过高效液相色谱-质谱法测定 3-氯苯酚、2,3-二氯苯酚、2,4-二氯苯酚和 2,4.6-三氯苯酚之前，它被证明是一种可行的吸附剂。在优化条件下，加标样品的回收率在 92.5% 到 106.3% 之间。对于瓶装果汁，检测限范围为 0.03 至 0.3 ng mL-1（信噪比为 3），0.03 至 0。对于番茄样品，1 ng g−1。四种分析物的富集因子对于瓶装果汁在 127–183 范围内，对于番茄则在 110–150 范围内。果汁的响应在 1.0 到 40.0 ng mL-1 的范围内呈线性，番茄的响应在 0.3-40.0 ng g-1 的范围内。测定瓶装饮料中 20 ng mL-1 和番茄中 20 ng g-1 氯酚的相对标准偏差低于 5.7%。图文摘要以三苯胺为单体，二甲氧基甲烷为交联剂，采用外交联剂法制备了聚三苯胺聚合物（PTPA），并将其作为吸附剂，从果汁和蔬菜样品中提取氯酚。果汁的响应在 1.0 到 40.0 ng mL-1 的范围内呈线性，番茄的响应在 0.3–40.0 ng g-1 的范围内。测定瓶装饮料中 20 ng mL-1 和番茄中 20 ng g-1 氯酚的相对标准偏差低于 5.7%。图文摘要以三苯胺为单体，二甲氧基甲烷为交联剂，采用外交联剂法制备了聚三苯胺聚合物（PTPA），并将其作为吸附剂，从果汁和蔬菜样品中提取氯酚。果汁的响应在 1.0 到 40.0 ng mL-1 的范围内呈线性，番茄的响应在 0.3–40.0 ng g-1 的范围内。测定瓶装饮料中 20 ng mL-1 和番茄中 20 ng g-1 氯酚的相对标准偏差低于 5.7%。图文摘要以三苯胺为单体，二甲氧基甲烷为交联剂，采用外交联剂法制备了聚三苯胺聚合物（PTPA），并将其作为吸附剂，从果汁和蔬菜样品中提取氯酚。