Study of the retention of benzotriazoles, benzothiazoles and benzenesulfonamides in mixed-mode solid-phase extraction in environmental samples.

•Benzotriazoles and benzothiazoles were selectively extracted in mixed-mode sorbents.•These neutral analytes showed ionic interactions with strong ion-exchangers.•Ionic interactions are promoted by induced charges in the analytes.•Two developed methods using cationic and anionic sorbents showed similar results.•Low matrix effect was obtained in environmental waters thanks to the washing step.