摘要
利用钒可在室温下被高锰酸钾氧化而铬不易被氧化的特点,先测定钒的含量,然后再测定钒和铬的合量。根据1%的钒相当于0.34%的铬,从合量中减法钒的含量,最后求得铬的分量。在选定的条件下,钒和铬的回收率均在98%-102%之间,相对标准偏差不大于5.0%。
In this paper, we saw about the conditions of preventing interference between Chromium and vanadium which added in mixture sample. Because vanadium can be oxygenized by potassium hyperman- ganate when temperature was normal but Chromium can not be,so we can measured the content of condition, the recoveries obtained of vanadium and Chromium were in the range of 98.0 % -102 %, the relavive standard deviation were both not more than 5.0 %.
出处
《四川有色金属》
2007年第2期37-39,共3页
Sichuan Nonferrous Metals
关键词
氧化一还原滴定法
混合料
钒
铬
Oxidation reduction titration
Mixture sample
Vanadium
Chromium
