摘要
本文以二溴—氯偶氮氯磷作显色剂,建立了反相流动注射分析测定稀土总量的方法.实验表明,本方法简便,快速,且钙、铁的允许量较手工法约提高一个数量级.方法用于稀土铝合金中的稀土总量的测定,结果满意.
In thispaper, a rapid and simple method for the determination of the total rare earths by reverse flow injection analysis is described. It based on the procedure of rare earths in 1.2 mol/L HC1 as carry stream and injecting DBC-CPA. The consumption of DBC-CPA is minimized and the permi-ting amounts of Ca and Fe are increased by about one order of magnitude as compared with that of manual method. The method has been used to determination of the total rare earths in rare earth aluminium alloys with satisfactory results.
出处
《冶金分析》
CAS
CSCD
北大核心
1993年第6期18-20,共3页
Metallurgical Analysis
关键词
铝合金
稀土
分光光度法
2- ( 4-Chloro-2-phosphonophenylazo ) -7- ( 2,6-dibromo-4-chloroplienylazo ) -1,8-dihydroxy -3, 6-naphthalene disulfonic acid, Reverse flow injection analysis, Aluminium alloys, Rare earth
