利用溶液状态的差别在大量钨存在下选择性测定微量钼

A Selective Determination of Molybdenum in the Presence of Large Amount Tungsten by the Difference of Solutional State

本文报道了在大量钨存在下选择性测定微量钼的方法。利用溶液状态的性质,研究加大钼、钨显色反应差别的条件,使钨失去了反应能力,而钼可选择性地显色。

A simple selective spectrophotometry has been developed for determination of molybdenum in the presence of tungsten based on the difference of polymeric behavior and complex ability. In the present paper, it is demonstrated how increase difference of solutional state between molybdenum and tungsten. It has been found that the method do not affect the absorbance of complex by forming molybdenum with bromopyrogallol red (BPR) but the complex of tungsten would almost become to fide.The method was applied to determine the micro amount of molybdenum in the tool steel with Satisfactory results.