摘要
拟定了用负载 8 羟基喹啉的活性炭对水中痕量钨 进行预富集的方法 ,探讨了活性炭吸附钨 及有机试剂的作用机理。在实验条件下 ,10 0mg活性炭负载 8 羟基喹啉后 ,可以大大提高对钨 的吸附效果 ,同时除去干扰测定的金属离子 ,最后用分光光度法测定水中痕量钨 。利用本方法对温泉水样品中的痕量钨 进行分析测定 ,结果令人满意。
Accumulation of W? was studied using active carbon impregnated with 8-hydroxyquinoline. The optimal conditions were selected. The mechanism of adsorption of W? by active carbon and the mechanism of the effect of 8 hydroxyquinoline was also discussed. By this process, the adsorption capacity of active carbon for W? was greatly improved, and W? can be separated from many ions such as Fe 3+ , Cu 2+ , Co 2+ , Ni 2+ , Mn 2+ , Hg 2+ , Cd 2+ , Zn 2+ , Pb 2+ , Sn 2+ , Al 3+ , Ti? etc. This method is simple, sensitive, rapid and repeatable, it has been used to determine trace W? in spring water with satisfactory results.
出处
《冶金分析》
CAS
CSCD
北大核心
2001年第1期20-23,共4页
Metallurgical Analysis
关键词
分光光度法
羟基喹啉
活性炭
钨
温泉水样
测定
spectrophotometry
8-hydroxyquinoline
active carbon
tungsten(Ⅵ)
spring water
