title: Electrospun polymer nanofibres as solid-phase extraction sorbents for extraction and quantification of microcystins.
abstract: 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.
authors.affiliation: a Key Laboratory of Environmental Medicine Engineering of Ministry of Education , School of Public Health, Southeast University , Nanjing 210009 , People's Republic of China.
authors.forename: HaiYan
authors.initials: H
authors.lastname: Wei
authors.affiliation: b Department of Occupational and Environmental Health , School of Public Health, Central South University , Changsha , Hunan 410078 , People's Republic of China.
authors.forename: Fei
authors.initials: F
authors.lastname: Yang
authors.affiliation: c Key Laboratory of Child Development and Learning Science, Ministry of Education , Research Center for Learning Science, Southeast University , Nanjing 210096 , People's Republic of China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
authors.affiliation: a Key Laboratory of Environmental Medicine Engineering of Ministry of Education , School of Public Health, Southeast University , Nanjing 210009 , People's Republic of China.
authors.forename: YuanLong
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: c Key Laboratory of Child Development and Learning Science, Ministry of Education , Research Center for Learning Science, Southeast University , Nanjing 210096 , People's Republic of China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Yan
authors.affiliation: a Key Laboratory of Environmental Medicine Engineering of Ministry of Education , School of Public Health, Southeast University , Nanjing 210009 , People's Republic of China.
authors.forename: GeYu
authors.initials: G
authors.lastname: Liang
authors.affiliation: a Key Laboratory of Environmental Medicine Engineering of Ministry of Education , School of Public Health, Southeast University , Nanjing 210009 , People's Republic of China.
authors.forename: LiHong
authors.initials: L
authors.lastname: Yin
authors.affiliation: a Key Laboratory of Environmental Medicine Engineering of Ministry of Education , School of Public Health, Southeast University , Nanjing 210009 , People's Republic of China.
authors.forename: YuePu
authors.initials: Y
authors.lastname: Pu
mesh_terms: D006863:Hydrogen-Ion Concentration; D052998:Microcystins / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification*; D057139:Nanofibers / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D015203:Reproducibility of Results; D052616:Solid Phase Extraction / Q000379:methods*
chemical_list: D052998:Microcystins; D011108:Polymers
keywords: detection; in-suit water samples; microcystins; nanofibre; solid-phase extraction