摘要
从高纯碳酸锂中杂质含量测定出发,研讨了标准溶液配制用原料的杂质测定方法,首先利用电感耦合等离子体质谱(ICP-MS)法对高纯碳酸锂进行半定量分析,再依据半定量分析结果选择ICP-MS、电感耦合等离子体原子发射光谱(ICP-AES)法、原子吸收光谱(AAS)法等方法对相应元素(杂质含量>0.001%)进行定量分析,通过扣除杂质含量得出高纯碳酸锂纯度大于99.991%。从而建立了一个准确、高效。
Based on the determination of impurity elements in high purity Li2 CO3, a method for the determination of impurity elements in the raw materials for the preparation of standard solutions was studied. Firstly, the contents of most elements in high purity Li2 CO3 were measured by semi-quantitative analysis of ICP-MS. Then, according to these results, the corresponding elements （more than 0. 001%） were quantitatively determined by ICP-MS.ICP-AES and AAS. The purity of high purity Li2CO3 was determined above 99.991% by means of the deduction of the impurity element content. An accurate and efficient method, which covering multiple elements, for impurity content analysis of high pure substance has been established.
作者
李海平
范晓芸
LI Haiping FAN Xiaoyun(NCS Testing Technology Co. Ltd. , Beijing 100081, China)
出处
《中国无机分析化学》
CAS
2017年第2期38-41,共4页
Chinese Journal of Inorganic Analytical Chemistry
