Study on the Ternary Heteropolyacids in the Systems of P-Mo-W and As-Mo-W as well as their Application in the Spectrophotometric Determination of Low Tungsten
来源期刊：Rare Metals1990年第1期
论文作者：Chen Huaxu Shao Guangdi Department of Chemistry,Univeraity of Science and Technology BeijingQi Xiaoling Department of Chemical Engineering.Institute of Chemical Engineering Wuhan
文章页码：10 - 15
摘 要：<正> The colored associated compounds of phosphomolybdotungstate and arsenomolybdotungstate with crystal violet are intro-duced.Their main characters have been studied.These two associated compounds may be used to determine low tungsten withfairly high sensitivity and selectivity.Their strong point is that the interference of molybdenum can be overcome.In the presenceof polyvinyl alcohol.tungsten can be determined directly in the aqueous solution.
Chen Huaxu Shao Guangdi Department of Chemistry,Univeraity of Science and Technology BeijingQi Xiaoling Department of Chemical Engineering.Institute of Chemical Engineering Wuhan
摘 要：<正> The colored associated compounds of phosphomolybdotungstate and arsenomolybdotungstate with crystal violet are intro-duced.Their main characters have been studied.These two associated compounds may be used to determine low tungsten withfairly high sensitivity and selectivity.Their strong point is that the interference of molybdenum can be overcome.In the presenceof polyvinyl alcohol.tungsten can be determined directly in the aqueous solution.
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