Tungsten and molybdenum co-precipitation by α-benzoinoxime for activation analysis of tungsten

The feasibility of using tungsten and molybdenum co-precipitation by α-benzoimoxime was studied both as a separation technique and as an indirect method for yield calculation of tungsten through molybdenum. Comparison of relative yields for both elements is made. Results showed coincidence and let conclude that molybdenum can be used as tracer to calculate sample to standard relative yields for tungsten. Analyses of water samples for tungsten were made and results were also presented. The method can be extended still if chemical steps other than precipitation are performed provided that yields for both elements are not altered. (T.G.)