包头市2010-2013年市售食品中重金属铅、镉、铝污染状况调查分析

From 2010 to 2013 in Baotou city food market in the heavy metals lead, cadmium, aluminum pollution investigation analysis

目的了解包头市市售食品中重金属铅、镉、铝污染状况及变化趋势。方法主要采集居民日常膳食中有代表性的包头市市售的食品,采用随机抽样的方法在主要超市、农贸市场、种养殖基地、早餐供应点、路边摊等地分别采集各类食品,按照国家标准方法 GB/T5009对样品进行前处理,检测其铅、镉、铝的含量。结果 2010-2013年共采集样品15大类1 095份食品,样品中铅合格率为94.8%,镉合格率为96.5%。铝的合格率较低,为46.6%。方法加标回收率实验的回收率在90.0%～110.0%之间,精密度在4.18%～9.03%之间,因此符合测定要求。结论包头市市售食品中铅、镉污染并不严重,但检出率却不低,证明有一定程度的累积。检测铝的粮食制品合格率很低,说明粮食制品滥用含铝添加剂现象比较严重,现状不容乐观。

Abstyacts Objective to understand the Baotou city food market in the heavy metal lead, cadmium, aluminum pollution status and trends. Methods the representative main acquisition residents daily dietary market in Baotou city food, by random sampling method were collected from all kinds of food in the major supermarkets, farmers market, breeding base, breakfast point, roadside stalls, the pretreatment of samples in accordance with the national standard method for detecting the content of GB/T5009, the lead, cadmium, aluminum. Results total 15 samples were collected from 2010 to 2013 in 1 095 food samples, the sample pass rate of 94.8% for lead, cadmium qualified rate is 96.5%. The qualified rate of aluminum is lower, 46.6%. Methods the recovery of standard addition recovery experiments at the rate of 90%-110%, 4.18%-9.03% in precision, thus meets the requirements for the determination of. Conclusion Baotou city food market in the lead, cadmium pollution is not serious, but the detection rate is not low, proved to have accumulated a certain degree of. Grain products inspection of aluminium qualified rate is very low, the food products containing additives abuse phenomenon is quite serious, the situation is not optimistic.