Silver nanoparticle-functionalized melamine-formaldehyde aerogel for online in-tube solid-phase microextraction of polycyclic aromatic hydrocarbons followed by HPLC-DAD analysis

被引:5
作者
Xin, Xubo [1 ]
Li, Chunying [1 ]
Sun, Min [1 ]
Guo, Wenjuan [1 ]
Feng, Juanjuan [1 ]
机构
[1] Univ Jinan, Key Lab Interfacial React & Sensing Anal Univ Shan, Sch Chem & Chem Engn, Jinan 250022, Peoples R China
基金
中国国家自然科学基金;
关键词
Silver nanoparticles; Melamine -formaldehyde aerogel; Solid -phase microextraction; High performance liquid chromatography; Online analysis; FACILE FABRICATION; WATER; EXTRACTION; PERFORMANCE; ADSORBENT; MEMBRANE; METAL;
D O I
10.1016/j.chroma.2024.464767
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Based on the pi-metal interaction between silver nanoparticles (AgNPs) and aromatic compounds, AgNPs were insitu grown to melamine -formaldehyde (MF) aerogel for improving the extraction performance to polycyclic aromatic hydrocarbons (PAHs). The AgNPs/MF aerogel was regulated through varing the concentration of reactants, and characterized by scanning electron microscopy, X-ray photoelectron spectroscopy and X-ray powder diffraction. As a new extraction coating, the AgNPs/MF aerogel was coated to stainless -steel wires for in -tube solid -phase microextraction (IT-SPME). The extraction effects of MF aerogels before and after the modification of AgNPs were compared, and the AgNPs greatly improved the extraction ability for PAHs reaching to 166.4 %. Combining IT-SPME with high performance liquid chromatographic detection, an online analytical system was constructed. Furthermore, the sampling volume and rate, concentration of organic solvent, and desorption time were optimized factor by factor. The online analytical method with low detection limits (0.003-0.010 mu g L-1) and efficient enrichment factors (1998-3237) for PAHs was established, which fastly detected trace level of PAHs in drinking and environmental water samples. Compared with other methods, the method was comparable or better in the detection limit and linear range, indicating prospective application of the AgNPs/MF aerogel for sample preparation.
引用
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页数:9
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