湿式消解-ICP-AES同时测定猪组织器官中的7种金属元素  

Simultaneous Determination of Seven Metal Elements in Pig Organs by ICP-AES with Wet Digestion

作　　者：曹丽玲[1] 秦云萍[1] 

机构地区：[1]石家庄市疾病预防控制中心理化检验所,河北省石家庄市栗康街3号050011

出　　处：《光谱实验室》2012年第6期3904-3908,共5页Chinese Journal of Spectroscopy Laboratory

摘　　要：建立湿式消解-ICP-AES测定猪组织器官中7种金属元素含量。对猪肉、猪肝、猪肚15份样品,采用湿式消解法进行前处理,利用ICP-AES测定铁、锰、铜、锌、镉、铅、铬7种金属元素含量。方法检出限为0.230—3.501μg/L、线性范围为0.01—6.00μg/mL、相关系数为0.99961—0.99997、加标回收率为90.4%—96.8%、相对标准偏差为1.03%—3.12%。经实际检测,猪产品中含有丰富的人体必需的金属元素铁、锌、铜,特别是猪肝中的铁和锌含量较高,铁最高达到160.3mg/kg,锌最高达到113.4mg/kg。结果显示3种猪组织器官是人体补充铁、锌金属非常有益的营养食品。A method for determination of seven metal elements in pig tissue and organs was established by ICP-AES with wet digestion. 15 samples of pork, pork liver and pork tripe were pretreated by wet digestion method, then the contents of iron, manganese, copper, zinc, cadmium, lead and chromium were determined by ICP-AES. The detection limit of method was 0. 230--3. 501μg/L, and the linear range was from 0. 01 to 6. 00μg/mL with the correlation coefficient from 0. 99961 to 0. 99997. The recovery was between 90.4% and 96. 8% ,with RSD from 1.03% to 3.12%. During the actual determination,it was found that the pig products contained abundant metal elements,which is essential to human body, such as iron, zinc and copper. The contents of iron and copper in pork liver were especially higher, the highest content of iron attained to 160. 3mg/kg and that of zinc was 113.4mg/kg. The results show that the three pig organs are very beneficial nutrition food,which can complement iron and zinc for human body.

关 键 词：湿式消解法 电感耦合等离子体-原子发射光谱法 猪组织器官 金属元素 

分 类 号：O657.31[理学—分析化学]