The Application of Scanning Proton Microprobe (SPMP) in Study of Trace Gold Distribution

Studies on distribution of trace gold mostly focus on some samples in whichgold content is well above 100 ppm at the present time due to the limitation of analy-sis methods. Progress in research on trace gold (usually less than 100 ppm to n ppm)was rarely reported. Although electronic microprobe (EM...

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Published in中国科学通报：英文版 no. 2; pp. 146 - 148
Main Author 魏元柏 陈武 周建平 朱节清 谷英梅 陆荣荣
Format Journal Article
LanguageEnglish
Published 1994
Subjects
distribution
gold
microprobe
proton
scanning
trace
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Summary:Studies on distribution of trace gold mostly focus on some samples in whichgold content is well above 100 ppm at the present time due to the limitation of analy-sis methods. Progress in research on trace gold (usually less than 100 ppm to n ppm)was rarely reported. Although electronic microprobe (EMP) and scanning electronicmicroprobe (SEM) have a high resolution, their detection limits are still 100-500ppm and 100-300 ppm, respectively. And also the electronic paramagnetic reso-nance spectrometer, an effective method for determining lattice gold of a few tenppm level, unfortunately is still incapable of doing such research. Newly developed
Bibliography:11-1785/N
WEI Yuan-Bai CHEN Wu ZHOU Jian-Ping(Department of Earth Sciences, Nanjing University, Nanjing 210008, PRC)ZHU Jie-Qing GU Ying-Mei and LU Rong-Rong(Shanghai Institute of Atomic Nucleus, Academia Sinica, Shanghai 201800, PRC)
ISSN:1001-6538
1861-9541