罗丹明6G-Mo(Ⅴ)-SCN-PVA体系荧光熄灭法测定合金钢中微量钼  

Determination of Micro Amount of Molybdenum in Alloy Steel with Rh6G-Mo(Ⅴ)-SCN^--PVA System by Fluorescence Quenching Method

作　　者：赵泉林[1] 郭少毅[1] 

机构地区：[1]河南安阳钢铁集团公司中心试验室,河南省安阳市455004

出　　处：《光谱实验室》1997年第4期88-90,共3页Chinese Journal of Spectroscopy Laboratory

摘　　要：在H2SO4介质中，Mo（V）与SCN-生成的络离子能够熄灭罗丹明6G的荧光，加入聚乙烯酸（PVA－124）后，体系的荧光熄灭程度比不加时大23倍，Mo量在0．075－3．5μg／25mL范围内与荧光熄灭值△F成线性关系。本法灵敏度高，选择性好。In the medium of H2SO4, the complex ion Mo (v )-SCN-can quench the nuorescence of Rh6Gquantitatively. The linear range is 0. 075- 3.5μg/25mL. The quenching of the system is increased by23 times in the presence of PVA-124.This method is htehly sensitive and selective, which is applied tothe determination of micro amount of molybdenum in alloy steel with satisfortory results.

关 键 词：荧光熄灭法 罗丹明6G 钼 合金钢 

分 类 号：TG115.314[金属学及工艺—物理冶金]