ICP法测量吉林省部分地区大米中矿物质的含量

目的用ICP法测定吉林省部分地区大米中矿物质的含量,以了解大米中营养物质的含量情况.方法采用随机抽样的方法对6个地区大米进行采样,我们选用其中部分样品,样品经过湿式消化法消解后,用全谱直读电感耦合等离子体发射光谱仪（即ICP-OES）对大米中主要的无机盐和微量元素进行测定.结果测得样品中无机盐和微量元素的含量情况,大米中主要含有K、Ca、Na、Fe、Cu、Mg、Zn等10种元素.结论运用ICP法测定大米中无机盐和微量元素含量,操作简便,实用,具有较好的精密度和准确度,测定结果能为人们提供可靠的营养数据.

Mineral Content of Rice Measured with ICP Method in Some Cities of Jilin Province

Objective In order to know the nutritional content of rice,content of inorganic salts and trace elements of rice in some cities of Jilin Province was determined by ICP.Method Rice in 6 cities has been chosen randomly.Firstly,we choose some of the samples and then let them undergo the process of wet digestion.Finally,the main inorganic salts and trace elements are measured by ICP-OES.Results The content of samples about inorganic salts and trace elements is measured,mainly concluding ten kinds of elements,such as K,Ca,Na,Fe,Cu,Mg,Zn.Conclusion It is of simple operation,high precision and accuracy,good determination results and great practice to exert ICP,which can provide reliable nutritional data for people.