摘要
采用ＤＰＡＳＶ法测定金属Ｎａ中的痕量元素Ｃｄ。以正交试验法确定最佳仪器条件。试样可不经分离在ｐＨ２ＮａＮＯ＿３溶液中直接测定Ｃｄ。其检测下限达０．０２ｎｇ／ｍｌ。测得值的相对标准偏差为１２％。
The trace cadmium in sodium metal is determinated with DPASV, and the best parametersof the polarograph for this test is found with orthogonal experimental method. The cadmium insodium is deterinined directly in NaNO_3 .colution of PH2. The lower limit of the deterznination forCd is to 0. 02 ng/ml. The method can be used to deterniinate ω ( Cd) = 10-6-10-9 in sodiummetal, and the relative standard deviation is 12% .
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1994年第6期537-542,共6页
Atomic Energy Science and Technology
关键词
阳极溶出
正交法
钠
痕量分析
镉
Sodium Trace cadmium DPASV Orthogonal experimental method
