Abstract:

The powder samples were pressed into slice by using high density polyethylene powder to trim lining, determination content of Mo and commonly associated elements W,Sn,Cu,Pb,Zn,Bi content by wavelength dispersive X-rafluorescence spectrometry.According to the characteristics of molybdenum ore grade,using national standard samples with a large molybdenum mine established by combining samples of the calibration curve,measuring range from 0.03% to 1.51%,The matrix effect was eliminated by using empirical coefficient method.The determination results of the method had good agreement with those of wet method.The relative standard deviation of each component were in the range of 0.073%~7.35% in 11 times of determination for same sample.The results of Mo,W, Sn,Cu,Pb,Zn,Bi obtained by the method were in good accordance with certified values.

Key words: Powder press slice, X-ray spectormetry, Molybdenum ores, Component associated elements