Application of Mathematical Statistics in Quality Control for Geochemical Samples Analysis
Received:April 27, 2020  Revised:May 01, 2020
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DOI:10.3969/j.issn.2095-1035.2021.01.017
KeyWord:geochemical sample; quality control; mathematical statistics; ;normal distribution; logarithmic normal distribution
              
AuthorInstitution
GUO Bin 湖南省地质测试研究院
LI Chaoqun 湖南省地质测试研究院
LIU Liping 湖南省地质测试研究院
YU Lianling 湖南省地质测试研究院
LONG Liang 湖南省地质测试研究院
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Abstract:
      The CaO content distribution of geochemical samples was investigated using Excel2013 and minitab softwarw. The quality estimation of analysis data for geochemical samples in Guangxi province was made by using descriptive statistics, normal distribution, background values and anomalies methods. The results indicated that computer software and mathematical statistics methods could be used to quickly find the detailed information and characteristics of the analytical data, judged the accuracy of laboratory analysis data of geochemical sample, fould out the background and abnormal values of elements and eliminated the abnormal values. The result of the normal distribution test indicated that the analysis data of the trace elements need a logarithmic conversion before the normal distribution could be studied.compared with the X fluorescence method, the results measured by inductively coupled plasma emission spectroscopy are more consistent with the normal distribution.It was a valuable attempt to evaluate
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