THE DYNAMIC ACCUMULATION SAMPLING TECHNIQUE IN THE MEASUREMENT OF NANO-SCALE PARTICLES
LIU Ying-han1,2, LIU Jing-qiu3, ZHANG Hua2, WANG Ming-qi4, KONG Mu2, ZHANG Qin2
1. Colllege of Resources and Environment China Agriculture University, Beijing 100094, China;
2. Institute of Geophysical and Geochemical Exploration, Langfang 065000, China;
3. North China Institute of Astronautic Engineering, Langfang 065000, China;
4. China University of Geosciences, Beijing 100083, China
Sampling procedure is a key to get a reliable observation in the application of nano-scale particle survey to mineral exploration in overburden areas.An effective sampling device and an appropriate sampling amount constitute the major controlling factors for successful accumulation of nano-scale particles. Liquid collectors and dynamic sampling were tested to select the sampling device, layout and sampling time. The results show that the man-powered sampling device can produce much better response than the battery-driven sampler and that, to get satisfactory anomalies, we should totally collect more than 9 liters of pumping gases at each sampling site. It can be concluded that the materials the authors collected are nano-scale particles rather than real gases, and that greater power is needed to release them from the soil.
刘应汉, 刘京秋, 张华, 汪明启, 孔牧, 张勤. 纳米微粒物质测量中动态累积法采样技术[J]. 物探与化探, 2008, 32(1): 61-65.
LIU Ying-han, LIU Jing-qiu, ZHANG Hua, WANG Ming-qi, KONG Mu, ZHANG Qin . THE DYNAMIC ACCUMULATION SAMPLING TECHNIQUE IN THE MEASUREMENT OF NANO-SCALE PARTICLES. Geophysical and Geochemical Exploration, 2008, 32(1): 61-65.
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