Abstract:

To investigate typical sulfonamides residues contamination of vegetables, the contents of three sulfonamides in 14 kinds of vegetables sold in Hefei were detected with high-performance liquid chromatography. The results showed that three sulfonamides were detected in vegetables in different levels, but the contamination levels varied significantly with different sulfonamides. SM2 was detected in 97.3% of the samples, the maximum concentration was 0.5824 mg/kg; SMZ was detected in 24.5% of the samples, the maximum concentration was 0.0296 mg/kg; SDZ was detected in 22.8% of the samples, the maximum concentration was 0.0298 mg/kg. The contents of sulfonamides varied significantly in different kinds of vegetables, the contamination of sulfonamides in leaf vegetables and root vegetables was severe; SM2 was mainly distributed in leave and root of vegetable. The detectable rate of SDZ and SMZ in vegetables sold in winter was higher than in summer. The evaluation results showed that the contamination of SM2 was the most serious, the over standard rate was 96.3%; the contamination level of SDZ and SMZ was relatively low, the over standard rates were 1.8% and 24.5%, respectively. The results showed that the residues contamination of sulfonamides in vegetables was serious.