Bu Yanan, Feng Juanjuan, Wang Xiuqin, Tian Yu, Sun Min, Luo Chuannan
Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
J Chromatogr A. 2017 Feb 3;1483:48-55. doi: 10.1016/j.chroma.2016.12.077. Epub 2016 Dec 29.
A facile, low cost, sensitive and environmentally friendly polyaniline (PANI) coating was prepared onto the basalt fibers (BFs) by in situ hydrothermal growth method. PANI functionalized BFs were placed into a poly(ether ether ketone) (PEEK) tube as a fibers-in-tube solid-phase microextraction (SPME) device. The extraction and analysis processes were carried out by connecting it to high performance liquid chromatography (HPLC). Three ultraviolet filters including 2-hydroxy-4-methoxybenzophenone, phenyl salicylate and 2,4-dihydroxybenzophenone were employed as model analytes. Under the optimal extraction and desorption conditions, online in-tube SPME-HPLC analysis method was established and afforded satisfactory enrichment factors (1323-1555), wide linear ranges (0.06-100μgL) with correlation coefficients ranging from 0.9995 to 0.9999, low limits of detection (0.02-0.05μgL) and acceptable extraction repeatability (RSD<7.8%, n=6) and preparation repeatability (RSD<9.7%, n=3). The proposed method was successfully applied to the determination of the three ultraviolet filters in two environmental water samples.
通过原位水热生长法在玄武岩纤维（BFs）上制备了一种简便、低成本、灵敏且环境友好的聚苯胺（PANI）涂层。将聚苯胺功能化的玄武岩纤维放入聚醚醚酮（PEEK）管中，制成管内纤维固相微萃取（SPME）装置。通过将其连接到高效液相色谱（HPLC）上进行萃取和分析过程。选用2-羟基-4-甲氧基二苯甲酮、水杨酸苯酯和2,4-二羟基二苯甲酮三种紫外线过滤剂作为模型分析物。在最佳萃取和解吸条件下，建立了在线管内固相微萃取-高效液相色谱分析方法，该方法具有令人满意的富集因子（1323 - 1555）、较宽的线性范围（0.06 - 100μg/L），相关系数在0.9995至0.9999之间，低检测限（0.02 - 0.05μg/L）以及可接受的萃取重复性（RSD<7.8%，n = 6）和制备重复性（RSD<9.7%，n = 3）。该方法成功应用于两种环境水样中三种紫外线过滤剂的测定。
