摘要
在ＨＣｌ－ＮＨ＿４Ｃｌ底液中，电解时间６０ｓ、电镀时间５ｓ、除氧３０ｓ的条件下，Ｓｎ和Ｃｄ有稳定的溶出峰。Ｓｎ和Ｃｄ的检出限分别为６．５μｇ／Ｌ和３．０μｇ／Ｌ，测定范围分别为１０～２００μｇ／Ｌ和５～１８０μｇ／Ｌ。对含Ｓｎ和Ｃｄ为２０μｇ／Ｌ的试液测定１０份，ＲＳＤ分别为５．６１％和４．８３％。方法用于实际样品测定，结果与文献方法相符。
In a supporting electrolyte HCl-NH_4Cl,the peaks of tin and cadmium were excellently separated and high sensitivities were achieved. The detection limits of Sn and Cd were 6. 5 μg/L and 3. 0 μg/L respectively,and the determination ranges were 10～200 μg/L and 5～180 μg/L respectively. The RSDs(n=10) as tested on 20 μg/L Sn and Cd samples were 5. 61% and 4. 83% respectively. The method has been applied to the analysis of real samples, and the results obtained were in agreement with those obtained from the existing methods.
出处
《岩矿测试》
CAS
CSCD
北大核心
1996年第1期77-79,共3页
Rock and Mineral Analysis
关键词
阳极溶出法
同时测定
锡
镉
anodic stripping voltammetry,simultaneous determination, tin,cadmium
