New polyamide 6 nanofibrous sorbents produced via alternating current electrospinning for the on-line solid phase extraction of small molecules in chromatography systems

•The new polyamide 6 nanofibrous sorbents for solid phase extraction were introduced.•Introduced sorbents were produced by alternating current electrospinning technology for first time.•The new sorbents demonstrate perfect structural stability in the high pressure chromatography system.•Extraction of bisphenol A, bisphenol S, butylparaben, and fenoxycarb with high efficiency was achieved.