Determination of sulphonamide residues in cattle meats by the Charm-II system and validation with high performance liquid chromatography with fluorescence detection

► Sulphonamide residues in cattle meat by Charm II technique and the validation of the sulphonamide levels by HPLC-FLD. ► Of 157 meat samples, 9 samples (5.73%) were found positive by the Charm II method. ► HPLC-FLD was used and four samples were confirmed as positive. ► The results should be confirmed by sensitive systems like HPLC 1.