AbstractGold nanoparticles (AuNPs) were in-situ deposited onto the ordered mesoporous carbon (OMC) to function as a novel SPME coating. The specific area, pore volumes and average pore diameter for OMC and AuNP/OMC were calculated to be 411 and 281 m2 g−1, 0.93 and 0.69 cm3 g−1, 7.1 and 6.8 nm, respectively. The results indicate that the introduction of AuNPs greatly enhances the extraction of anilines, probably due to the strong interaction between gold and amino groups. The composite material was coated onto a fiber which then gave enrichment factors in the range from 1143 to 3420 for anilines, 45 to 845 for alcohols and 86 to 545 for phenols, indicating its extraction selectivity towards aniline. Following desorption, four anilines were quantified by gas chromatography with flame ionization detection. The method has low limits of detection (0.072-0.18 μg L−1) and a good precision (1.9-3.8%). It was successfully applied to the analysis of anilines in river and drinking samples. Recoveries range from 83.9% to 107.7% and 94.0 to 113.1%, respectively. Graphical AbstractSchematic of a seeded growth strategy for the growth of Au NPs onto ordered mesoporous carbons as a novel SPME coating for the enhanced extraction of anilines from environmental water samples.

中文翻译：

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金纳米粒子沉积在介孔碳上作为固相吸附剂，具有增强的提取能力和苯胺选择性

摘要金纳米粒子 (AuNPs) 原位沉积在有序介孔碳 (OMC) 上，用作新型 SPME 涂层。OMC 和 AuNP/OMC 的比面积、孔体积和平均孔径分别计算为 411 和 281 m2 g-1、0.93 和 0.69 cm3 g-1、7.1 和 6.8 nm。结果表明，AuNPs 的引入大大增强了苯胺的提取，这可能是由于金和氨基之间的强相互作用。将复合材料涂覆在纤维上，然后给出苯胺的富集因子为 1143 至 3420，醇为 45 至 845，酚为 86 至 545，表明其对苯胺的提取选择性。解吸后，四种苯胺通过带有火焰离子化检测器的气相色谱法进行定量。该方法检测限低（0. 072-0.18 μg L-1) 和良好的精度 (1.9-3.8%)。成功应用于河流和饮用水样品中苯胺的分析。回收率分别为 83.9% 至 107.7% 和 94.0% 至 113.1%。图形摘要用于将 Au NPs 生长到有序介孔碳上的种子生长策略示意图，作为一种新型 SPME 涂层，用于增强从环境水样中提取苯胺。