Research on the determination method of platinum and palladium content in geological samples based on X-ray fluorescence spectroscopy
In order to establish an accurate method for determining the platinum and palladium content in geological samples and provide reliable element content data for geological research,mineral exploration and other related fields,a method for determining the platinum and palladium content in geological samples based on X-ray fluorescence spectroscopy is proposed.By using detectors to measure the characteristic X-ray fluorescence wavelength and energy of each element,qualitative and quantitative analysis of the elements can be achieved.Grind the sample finely and dry it,then press it into thin sheets using a tablet press.Remove noise levels from the original spectrum to improve its signal-to-noise ratio and determine the relative size of noise in the signal.Measure standard solutions to obtain characteristic peak shapes of pure elements,and use them as tools to fit overlapping peaks.Define optimization intervals and achieve overlapping peak decomposition to complete the measurement.The research results indicate that the SP X energy dispersive X-ray fluorescence spectrometer has a full spectrum channel address of 200.5,with a total of 5500 pulses,which is in line with the preset channel address number of the laboratory X-ray fluorescence spectroscopy platform;After precise calculations between the fitted values and the reference values by five groups,the error in the curve processing results was strictly controlled within 0.2%,which fully meets the error range specified by the standard.Therefore,it indicates that the research method effectively avoids the problem of local optima caused by data reduction,and the measurement results meet expectations,thereby improving the accuracy of the overall test results.
X-rayFluorescence spectroscopy methodGeological samplesDetermination of Platinum and Palladium Content
万方数据
维普
