摘要
通过使用纤维布作为基体,制备了三种不同极性的纤维布吸附剂(聚四氢呋喃,聚乙二醇和聚二甲基二苯基硅氧烷),以此种纤维布吸附剂材料,两种实用的前处理技术,搅拌棒纤维相吸附萃取技术与及磁性搅拌纤维相吸附萃取技术被研究和设计。同时,水样中三种溴化阻燃剂(四溴双酚A、四溴醚、八溴醚)作为分析对象,采用高效液相色谱法对两种萃取技术的萃取性能进行全面的评价,此外,优化了萃取时间,解析时间,离子强度等方法的萃取条件。在最佳萃取条件下,两种方法的回收率为93-99%,检测线为0.01-0.05μg L~1,相对标准偏差在1.3-4.3%之间。
Using the cellulose fabric as host matrix,three extraction sorbents such as poly(tetrahydrofuran)(PTHF),poly(ethylene glycol)(PEG) and poly(dimethyldiphenylsiloxane)(PDMDPS),were prepared on the surface of the cellulose fabric.Two practical extraction methods,which were the stir bar of fabric phase sorbent(stir bar-FPSE)and magnetic stir(magnetic stir-FPSE) of fabric phase sorbent for three kinds of brominated flame retardants(BFRs) in water was designed.In the meantime,BFRs[tetrabromobisphenol A(TBBPA),tetrabromobisphenol A bisallylether(TBBPA-BAE),tetrabromobisphenol A bis(2,3-dibromopropyl)ether(TBBPA-BDBPE)]in water sample were selected as model analytes for the practical evaluation of the proposed stir bar-FPSE and magnetic stir-FPSE methods using HPLC.Moreover,various experimental conditions of two methods two methods affecting extraction process were investigated.Under the optimized conditions,high recoveries(93-99%),low the limits of detection(LODs)(0.01-0.05 μg L~(-1)) and satisfactory reproducibility(RSD,1.3-4.3%) were achieved.
引文
[1]Roldán-Pijuán,M.;Lucena,R.;Cárdenas,S.;Valcárcel,M.;Kabir,A.;Furton,K.G.J.Chromatogr.A.2015,1376:35.
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