Rapid and sensitive extraction of aflatoxins by Fe3O4/zeolite nanocomposite adsorbent in rice samples

•An eco-friendly, economical and easy work-up procedure to prepare Fe3O4/zeolite nanocomposite.•Characterization of the adsorbent using FE-SEM, EDX, FT-IR, XRD, BET, VSM, and zeta potential.•Effective and fast extraction of aflatoxins in rice samples.•Easy separation of adsorbent under an external magnetic field.