Comparison of nanofibers, microfibers, nano/microfiber graphene doped composites, molecularly imprinted polymers, and restricted access materials for on-line extraction and chromatographic determination of citrinin, zearalenone, and ochratoxin A in plant-based milk beverages

•Novel nanofibrous composite sorbents for extraction were prepared.•Composite graphen dopped nano-sorbents were compared with restricted access material.•Polycaprolacton nanofibers enabled the most complete and fastest matrix purification.•Automation of the on-line extraction method granted precise results.•High-throughput determination of mycotoxins in plant-based milk drinks was proposed.