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目的调查自贡市市售食品中稀土元素含量。方法所采集食品包括粮食类、蔬菜、菇类、茶叶、蛋类、肉类、鱼类等样品从超市和农贸市场购买,按国家标准方法 GB/T 5009.94-2003《植物性食品中稀土的测定》对样品进行检测。结果样品检测锑、镧、镨、钕、钐等5种稀土含量0.000～1.386 mg/kg,合格率100%。结论抽检的54件自贡市市售粮食类、蔬菜类、肉类、禽蛋类食品中稀土元素含量无1例超标,表明自贡市市售食品稀土元素污染并不严重。
Objective To investigate the contents of rare earth elements in the foods sold in Zigong City. Methods Samples collected from foodstuffs, vegetables, mushrooms, tea, eggs, meat and fish were purchased from supermarkets and farmers’ markets according to the national standard method GB / T 5009.94-2003 Determination of rare earth in plant foods "Test samples. Results The samples were tested for antimony, lanthanum, praseodymium, neodymium, samarium and other five kinds of rare earth content of 0.000 ~ 1.386 mg / kg, pass rate of 100%. Conclusion None of the 54 samples of food, vegetables, meat, and eggs in the Zigong City sampled for sampling showed that rare earth elements were not seriously polluted on the market.