二溴羟基苯基荧光酮分光光度法测定钢中微量钼的研究

Study on Spectrophotometric Determination of Microamounts of Mo in Steels with DBHPF

在0.10mol/1及0.08mol/1硫磷酸介质中,钼(Ⅵ)与二溴羟基苯基荧光酮(简称DBHPF)及溴化十六烷基三甲铵(简称CTMAB)形成桔红色三元配合物。在抗坯血酸及氟化铵存在下,可不经分离直接测定普通钢及低合金中0.010～0.10％钼。

In 0.10mol/l H2SO4 and 0.08mol/l H3PO4 medium, Mo(Ⅵ) reacts with DBHPF and CTMAB to form a orange ternary complex. Microamounts of Mo in common Steel and low - alloy steel can be determined directly without separation in the presence of Ascorbic acid and Ammonium fluoride.