摘要
本文提出一种双络合体系Ｋ－系数分光光度法同时测定Ｍｏ（Ⅵ）与Ｗ（Ⅵ）的新方法．它是 基于酒石酸钾钠对Ｍｏ（Ⅵ）和Ｗ（Ⅵ）这两种离子与苯芴酮－ＣＰＣ在０．３ｍｏｌ·Ｌ－１盐酸溶液中形成络 合物的限制能力的差异，通过测量存在和不存在酒石酸钾钠的这二种显色体系在５１０ｎｍ处的吸光 度和所计算的Ｋ－系数消除Ｍｏ（Ⅵ）与Ｗ（Ⅵ）彼此间的干扰．本文已被用于钢铁中钼与钨的测定， 获得满意结果．
A new method for simultaneous determination of Mo(VI) and W(VI)was proposed in this paper by means of double-complexing system K-factor Spectrophotometry. It is based on the difference or the limiting ability in the of potassium sodium tartrate complex-forming of both Mo(Ⅵ) and W(Ⅵ) with phenylflourone-CPC at 0.3mol. L-1HCI solution,by measuring at 510nm absorbance of these two coloured system with and without potassium sodium tartrate and the calculated K-factor to eliminate the interference with each other .This method is applied to the determination of molybdenum and tungsten in steel with satisfactory results.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
1990年第4期99-103,共5页
Journal of Fuzhou University(Natural Science Edition)
