Electrospun polymer nanofibres as solid-phase extraction sorbents for extraction and quantification of microcystins

• Published in: Environmental technology 2015-11, Vol.36 (21), p.2796-2802
• Main Authors: Wei, HaiYan, Yang, Fei, Wang, Yu, Zhou, YuanLong, Yan, Yan, Liang, GeYu, Yin, LiHong, Pu, YuePu
• Format: Article
• Language: English
• Subjects: detection; Hydrogen-Ion Concentration; in-suit water samples; microcystins; Microcystins - analysis; Microcystins - chemistry; Microcystins - isolation & purification; Nanofibers - chemistry; nanofibre; Polymers - chemistry; Reproducibility of Results; Solid Phase Extraction - methods; solid-phase extraction
• ISSN: 0959-3330; 1479-487X
• DOI: 10.1080/09593330.2015.1049213

Electrospun polymer nanofibres were used as novel solid-phase extraction (SPE) sorbents to extract and quantify the microcystins (MCs) including microcystin-RR (MC-RR) and microcystin-LR (MC-LR) from in-suit water samples. The parameters that influenced the extraction efficiency were studied, including the amount of nanofibre, eluted solvent, eluted volume, pH, and the water sample volume. Under optimized conditions, a linear response for MC-RR and MC-LR over the range of 0.25-4 µg/L was achieved with r 2 values of 0.998 and 0.997, respectively. The extraction recovery of MC-RR and MC-LR was 97-102% and 98-100%, respectively, when the MC concentration was 0.25-4 µg/L. When their concentrations ranged from 0.05  to 0.25 µg/L, the MCs could be detected with high accuracy by the nanofibre SPE sorbent combined with nitrogen gas. Due to its simplicity, environment-friendliness, high efficiency, reusability, and sensitivity, the electrospun polymer nanofibre can be applied as a novel SPE sorbent to extract and detect the MCs from in-suit water samples.