南宁市畜禽内脏食品及牛奶污染物监测分析

Analysis on contamination of visceral meat and milk in Nanning markets

目的了解广西南宁市市售的畜禽内脏组织中抗生素、激素、重金属残留及其病理变化情况。方法随机抽取南宁市场上销售的鸡、鸭、猪肝,生鲜牛奶;应用酶免疫吸附法检测激素,应用氢化物原子荧光光度法检测砷含量,应用双硫腙分光光度计法检测铅含量,应用石墨炉原子吸收光谱法检测镉含量,应用苏木素-伊红染色法做组织病理切片,在显微镜下观察病理改变。结果从8个市场共收集样品371份。其中33份鸡肝、35份鸭肝、34份猪肝样品的铅检出率分别为72.72%,85.00%,73.53%;31份鸡肝和30份鸭肝样品的镉检出率均为100%;33份鸡肝、34份鸭肝和27份猪肝样品的砷检出率分别为93.34%,11.76%和33.33%;33份鸡肝样品中27份砷检测值超标,超标率为81.82%。70份鲜牛奶样品有4份检出速效氯霉素,检出率为5.72%。28份鸡肝、20份鸭肝样品全部检出乙烯雌酚。结论南宁市的畜禽食品污染严重,存在安全隐患。

Objective To understand the contamination of antibiotics,hormones,heavy metal residues in meat an milk sampled from markets in Nanning city.Methods Specimens of chicken,duck,pig liver and fresh milk were sampled randomly from the markets.Hormone residues in the samples were detected with ELISA.Arsenic was detected with hydride generation atomic fluorescence spectrometry.Lead was detected by dithizone spectrophotometer determination.Cadmium was detected by graphite furnace atomic absorption spectrometry.Results A total of 371 specimens was collected from 8 markets.All specimens of chicken liver were contaminated with stilbestrol and 81.82% of them with arsenic.Duck liver,pig liver and fresh milk were detected with different levels of contaminants.Conclusion The contaimination of visceral meat and milk in the markets of Nanning city is serious.