Facile and efficient poly(ethylene terephthalate) fibers-in-tube for online solid-phase microextraction towards polycyclic aromatic hydrocarbons
Facile and efficient poly(ethylene terephthalate) fibers-in-tube for online solid-phase microextraction towards polycyclic aromatic hydrocarbons
复制标题
用于在线固相微萃取多环芳烃的简便高效的聚对苯二甲酸乙二醇酯管内纤维
DOI：
10.1007/s00216-016-9567-z
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发表时间：
2016-07-01
影响因子：
4.3
通讯作者：
Luo, Chuannan
中科院分区：
文献类型：
--
作者：
Bu, Yanan;Feng, Juanjuan;Luo, Chuannan
将聚对苯二甲酸乙二酯（聚酯）纤维作为固相微萃取（SPME）吸附剂直接填充于聚醚醚酮（PEEK）管中，与高效液相色谱联用，在线分析环境水样中的多环芳烃（PAHs）。该装置对多环芳烃具有较高的萃取效率、良好的选择性和良好的耐用性。在最佳条件下，聚酯纤维的增强因子在307-1646之间，检出限在0.01 ~ 0.03 μg L（-1）之间。线性范围为0.03 ~ 80 μg·L ~（-1），相关系数（r）为0.9978 ~ 0.9997。定量限定义为具有10倍信噪比（S/N = 10）的分析物浓度，范围为0.03-0.1 μg L（-1）。方法的日内和日间精密度分别小于5.8%和6.9%。同时考察了萃取的重复性，其相对标准偏差在3.8- 7.8%之间。最后，将该装置成功应用于水样中多环芳烃的分析。图示摘要聚酯纤维管装置和自动管内SPME-HPLC系统的示意图。
Poly(ethylene terephthalate) (polyester) fibers as solid-phase microextraction (SPME) adsorbent were directly filled in a poly(ether ether ketone) (PEEK) tube, for online analysis of polycyclic aromatic hydrocarbons (PAHs) in environmental water samples, coupled with high-performance liquid chromatography. The facile, economic, and environmental polyester fibers-in-tube SPME device exhibited high extraction efficiency, good selectivity for PAHs, and satisfactory durability. Under optimum conditions, the polyester fibers provided satisfactory enhancement factors in the range of 307-1646, and low detection limits ranging from 0.01 to 0.03 μg L(-1). The linearity was in the range of 0.03-80 μg L(-1) with correlation coefficients (r) ranging from 0.9978 to 0.9997. Limit of quantification was defined as a concentration of the analytes with a ten-time signal-to-noise ratio (S/N = 10) and was in the range of 0.03-0.1 μg L(-1). The intra-day and inter-day precisions for quantitative analysis were investigated and the relative standard deviation (RSD) was lower than 5.8 and 6.9 %, respectively. Extraction repeatability was also investigated and its RSD was in the range of 3.8-7.8 %. Finally, the fiber-in-tube SPME device was successfully applied to analyze PAHs in water samples. Graphical abstract Schematic diagrams of polyester fibers-in-tube device and the automated in-tube SPME-HPLC system.