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| THE METHOD AND TECHNIQUE FOR IMPROVING THE DETECTION SENSITIVITY OF DYNAMIC GEOGAS SURVEY |
| LIU Xiao-hui, ZHOU Si-chun, TONG Chun-han, HU Bo |
| College of Applied Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu 610059, China |
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Abstract In view of the uranium prospecting characteristics in Changpai uranium exploration area of Guangdong Province, such as low ore grade, small ore body, and great depth, the authors employed improved dynamic geogas survey. During sampling, a couple of capturing agents were serially connected. On the basis of the premise of stationary sampling time, the sampling quantity of geogas was improved by approximately 50%. Before ICP-MS analysis, all geogas samples were concentrated from 40 mL to 5 mL, which improved the element concentrations in samples by 3~11 times. On the basis of this improvement, the elements with lower concentrations in geogas could be easily detected, and the analycial error was reduced effectively. The experimental results show that the improved measures can result in higher detection sensitivity of dynamic geogas survey and can further improve the prospecting effect of geogas survey.
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Received: 25 August 2011
Published: 10 December 2012
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