2013年陕西省动物源性食品中硝基呋喃的污染状况调查

The investigation on nitrofuran contamination in foods of animal origin of Shaanxi Province in 2013

目的建立动物源性食品中硝基呋喃代谢物的检测方法,对2013年陕西省动物源性食品中硝基呋喃的污染现状进行调查分析。方法按照代表性、适时性和随机性原则在全省范围内采集样品737份,样品经2-硝基苯甲醛衍生化,固相萃取柱净化后采用超高效液相色谱-串联质谱法定量分析。结果动物源性食品中硝基呋喃代谢物的总检出率为3.93%(29/737),鸡肉中的硝基呋喃代谢物的检出率最高(8.05%,14/174),4种硝基呋喃代谢物中呋喃它酮代谢物5-吗啉甲基-3-氨基-2-噁唑烷基酮(AMOZ)的检出率最高(2.04%,15/737)。结论陕西省动物源性食品在一定程度上受到了硝基呋喃的污染,应引起监管部门的注意,加强食品监督管理,保障食品安全。

Objective To develop a method to determine the nitrofuran metabolites in foods of animal origin by ultra high performance liquid chromatography-tandem mass spectrometry （ UPLC-MS/MS ） and investigate the nitrofuran contamination situation in foods of Shaanxi. Methods 737 samples were collected in Shaanxi Province according to tile principle of representation, timeliness and randomness. The samples were determined by UPLC-MS/MS after derivated with 2-nitrobenzaldehyde and purified by solid-phase extraction. Results The nitrofuran metabolites were detected in 29 out of 737 samples, with apositive rate of 3.93%. The highest detection rate was 8.05% from chicken and the detection rate of AMOZ was the highest among all metabolites which was 2.04%. Conclusion Some foods of animal origin of Shaanxi Province was contaminated by nitrofurans. Supervision and inspection should be strengthened in food production to ensure food safety.