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Application of packed porous nanofibers—Solid‐phase extraction for the detection of sulfonamide residues from environmental water samples by ultra high performance liquid chromatography with mass spectrometry
Author(s) -
Chen Rong,
Yang Yingying,
Wang Na,
Hao Lijun,
Li Li,
Guo Xinyan,
Zhang Junchi,
Hu Yuzhu,
Shen Weiyang
Publication year - 2015
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201400982
Subject(s) - nanofiber , polystyrene , extraction (chemistry) , solid phase extraction , chromatography , electrospinning , porosity , materials science , mass spectrometry , sulfonamide , linear range , detection limit , chemistry , polymer , nanotechnology , organic chemistry , composite material
Porous electrospun nanofibers, as new materials for solid‐phase extraction, were synthesized by electrospinning and coupled with ultra high performance liquid chromatography and mass spectrometry to determine sulfonamide residues in environmental water. Aligned porous polystyrene electrospun nanofibers were fabricated under the mechanism of phase separation. The high‐specific surface of these nanofibers (70 m 2 /g) could improve recoveries of the target sulfonamides 4–10 times compared with that of polystyrene nonporous material (3.8 m 2 /g). Under the optimized conditions, 13 sulfonamide residues showed an excellent linear relationship in the range of 0.125–12.5 ng/mL with a linear correlation coefficient ( r 2 ) greater than 0.99, and the detection limits of sulfonamides were as low as 0.80–5.0 ng/L. Compared to the commercial C 18 and HLB columns, the homemade porous nanofibers columns had some merits including simple fabrication and extraction process, short process time and environmental friendliness. The optimized method was applied to eight water samples collected from different livestock farms (Xuzhou, China). The results showed that polystyrene porous nanofibers were promising to preconcentrate sulfonamides of different polarities in the waste water.