摘要
试样用HCl-H2O2高温高压密闭溶解处理,不溶渣再用HF-HNO3-HCl-H2SO4高温高压密闭溶解二次处理后,ICP-AES同时测定汽车催化剂中的助剂元素La、Ba、Zr、Ti、Ce。方法的加标回收率和相对标准偏差分别为96.2%—100.4%和0.36%—1.15%,结果满意。
A better method for determination of synergistic catalysis elements in automobile exhaust catalyst by ICP-AES is proposed. The samples were dissolved in HC1-HzOz under high- tempreture and high-pressure,then the filter residues were digested under the same condition in HF- HNO3-HC1-HzSO4. La, Ba, Zr, Ti, Ce were analyzed simultaneously by ICP-AES. The recoveries and RSD are 96.2 %--100.4 % and 0. 36%--1.15 % ,resPectively.
出处
《光谱实验室》
CAS
2013年第3期1063-1067,共5页
Chinese Journal of Spectroscopy Laboratory
