摘要
用乙醚萃取Ａｕ－Ｓｂ合金中的Ａｕ，加络合剂抑制Ｓｂ的水解，提高了测定杂质元素的准确度。查明Ｓｂ对杂质元素测定的干扰。杂质元素标准加入回收率８２～１０３％，相对标准偏差２．０～１４％。制定了Ａｕ－Ｓｂ合金中Ｐｔ、Ｐｄ、Ｒｈ、Ｉｒ、Ａｇ等２６个杂质元素及合金成份Ｓｂ的测定方法。取２．５ｇ样品时杂质元素的测定下限为１×１０－４～２×１０－４％。测定Ｓｂ时相对误差＜２％。
The behavious of Sb and impurity elements in Au-Sb alloy were investigated during extraction of Au with ether. The process involves surpression of hydrolysis of Sb by complexing, to improve the determinating accuracy of the impurities. The interference of Sb on the determination was also looked into. The recovery rate of standard addition is 82～103% and the retative standard deviation is 2.0～14%. An ICP-AES method was established for the determination of Sb and impurity elements in Au-Sb alloy, such as Platinum, Palladium, Rhodium, Iridium, Silver etc. The detected limit in 2.5g sample variou from 1×10 -4 to 2×10 -4 %. The ratative error of Sb was less than 2%.
出处
《贵金属》
EI
CAS
CSCD
北大核心
1997年第1期31-33,共3页
Precious Metals
