Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
J Chromatogr A. 2018 May 18;1550:1-7. doi: 10.1016/j.chroma.2018.03.048. Epub 2018 Mar 26.
The Co-Al bimetallic hydroxide nanocomposites were synthesized and used as in-tube solid-phase microextraction coating. The nanocomposites-coated fibers were packed in a PEEK tube and tested for the extraction of eight polycyclic aromatic hydrocarbons (PAHs) coupled with high performance liquid chromatography. Several parameters affecting the PAHs extraction including the sampling volume, sampling flow rate, methanol content and desorption time were investigated. Under the optimized conditions, the extraction tube with nanocomposites coating exhibited remarkable extraction performance towards PAH targets. An online analysis method was achieved with the limits of detection less than 0.02 μg L and the linearity in the range from 0.03 to 15 μg L. The recoveries of the method for two water samples with spiking levels of 1 and 10 μg L ranged from 83 to 121%. Extraction repeatability and preparation repeatability were less than 4.0% and 10.9%, respectively.
共负载双金属氢氧化物纳米复合材料被合成并用作管内固相微萃取涂层。将纳米复合材料涂层纤维填充在 PEEK 管中，并与高效液相色谱法结合用于萃取八种多环芳烃（PAHs）。研究了影响 PAHs 萃取的几个参数，包括采样体积、采样流速、甲醇含量和洗脱时间。在优化条件下，纳米复合材料涂层萃取管对 PAH 目标物表现出显著的萃取性能。实现了在线分析方法，检出限低于 0.02μg/L，线性范围为 0.03 至 15μg/L。该方法对两个加标水平为 1 和 10μg/L 的水样的回收率在 83%至 121%之间。萃取重复性和制备重复性分别小于 4.0%和 10.9%。
