Discussion on the application of polarization excitation energy dispersive X-ray fluorescence spectrometer in field mining on-site laboratory
ZHAO En-hao1, WANG Jian-guo2, FAN Xing-tao3, MA Jian-sheng1, YUE Ming-xin1, YANG Liu1
1. China Geological Survey Shenyang Geological Survey Center, Shenyang 110032, China; 2. Seventh Geological Brigade of Liaoning Province, Dandong 118000, China; 3. National Research Center for Geoanalysis,Beijing 100037, China
Abstract：In order to improve the work efficiency of prospecting persons in field, the direct application of test equipment in field service of prospecting was explored. The project team built a test place in field in Fe-Cu-Co mining area of Liaoning Dandong based on one container reconstruction house. The minitype polarization excitation energy dispersive X-ray fluorescence spectrometer (P-EDXRF) was employed. The corresponding power supply system and sample smashing system were equipped. The field test method and sample pretreatment method were also matched. The laboratory for on-site analysis in field which could be independently operated was established. Two samples from this mining area were used for precision test. The relative standard deviations (RSD) for Fe, Cu and Co were all less than 6%. National standard samples (GBW07233, GBW07296 and GBW07306) were used for trueness test. The relative errors of three elements were less than 10%. The measuring results of 30 samples in laboratory in field were compared with those obtained by other indoor laboratories. It was found that the conformity of Fe and Cu was high and the proposed method could be applied for quantitative analysis. The test results of Co were relatively bad. It suggested providing semi-quantitative data. However, the abnormal areas could be accurately delineated. The experiments showed that this type of on-site laboratory could independently undertake the testing of several elements for the rapid delineation of abnormal areas. The proposed study provided technical support for the prospecting in field.
赵恩好, 王建国, 樊兴涛, 马健生, 岳明新, 杨柳. 偏振激发能量色散X射线荧光光谱仪在野外矿区现场实验室的应用探讨[J]. 冶金分析, 2019, 39(4): 31-37.
ZHAO En-hao, WANG Jian-guo, FAN Xing-tao, MA Jian-sheng, YUE Ming-xin, YANG Liu. Discussion on the application of polarization excitation energy dispersive X-ray fluorescence spectrometer in field mining on-site laboratory. , 2019, 39(4): 31-37.
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