摘要
本文详细研究了Ｎｉ、Ｃｏ、Ｃｕ、Ｚｎ－二甲酚橙有色络合物被活性炭定量吸附及解脱的最佳条件及原子吸收测定条件。建立了纯钼中微量元素Ｎｉ、Ｃｏ、Ｃｕ、Ｚｎ的测定新方法。该法具有较高的选择性。实际应用获得满意结果，回收率＞９５％，检测下限０．０１％～０．００５％。
n this paper a method is presentedwhichis based on adsorption of xylenol com-plexes of Co, Ni, Cu and Zn on active carbonThe adsorbed complexes are decomposed withhydrochloric acid (10mol/L). The eluate col-lected is evaporated to a small volume to re-move excess of hydrochloric acid, the concen-trated solution is transferred into 25 mL stan-dard flask and diluted to mark, then deter-mined by flame AAS. The method can be ap-plied for simultaneous determination of multi-elements in pure molybdenum or other metalwith a single sample solution. Experimentsshowed that the method has high recovery andsensitivity. The detection limit of the methodhas been established to be 0.x～0.005%, theresult are satisfactory.
出处
《分析试验室》
CAS
CSCD
北大核心
1996年第3期79-81,共3页
Chinese Journal of Analysis Laboratory
关键词
活性炭
吸附分离
原子吸收
钼
钴
镍
铜
锌
Flamz atomic absorptionSpectrometvy
Ni, Cu, Co and Zn determina-tion
molybdenum
