Fig. 1
Representative chromatograms of 31 sulfonamide standard solutions (0.1 µg g−1) in MRM mode; (1) Sulfaguanidine, (2) sulfisomidine, (3) sulfanilamide, (4) sulfacetamide, (5) sulfadiazine, (6) sulfathiazole, (7) succinylsulfathiazole, (8) sulfapyridine, (9) sulfamerazine, (10) sulfamoxole, (11) sulfamethizole, (12) sulfamethoxypyridazine, (13) sulfaperin, (14) sulfamethazine, (15) sulfameter, (16) sulfamonomethoxine, (17) sulfalene, (18) sulfachloropyridazine, (19) phthalylsulfathiazole, (20) sulfadozine, (21) sulfamethoxazole, (22) sulfaethoxypyridazine, (23) sulfatroxazole, (24) sulfisoxazole, (25) sulfabenzamide, (26) sulfachloropyrazine, (27) sulfadimethoxine, (28) sulfaquinoxaline, (29) sulfaphenazole, (30) sulfapyrazole, (31) sulfanitran