“…The literature reveals that several methods have been reported for the determination of CAN and CHL individually in biological samples (Fleuren & Van Rossum, ; Forjan, Maričič, Prosen, & Brodnjak, ; Guelen, Baars, Vree, Nijkerk, & Vermeer, ; Lou, Ruan, & Jiang, ; Muirhead & Christie, ; Peepliwal, Bonde, & Mohanraj, ; Rosenberg, Lam, & Dorsey, ; Salado & Vera‐Avila, ; Stenhoff, Lagerström, & Andersen, ; Zhang & Qiang, ). Several analytical methods have been applied to quantify CAN in biological fluids, including HPLC with UV detection (Peepliwal et al, ), HPLC with fluorometric detection (Stenhoff et al, ), LC–MS (Zhang & Qiang, ) and LC–MS/MS methods (Forjan et al, ; Lou et al, ).…”