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

被引：0

作者：

魏元柏

陈武

周建平

朱节清

谷英梅

陆荣荣

机构：

[1] Nanjing 210008

[2] Shanghai Institute of Atomic Nucleus

[3] Academia Sinica

[4] Shanghai 201800

[5] Department of Earth Sciences

[6] PRC

[7] Nanjing University

来源：

Chinese Science Bulletin | 1994年 / 02期

关键词：

trace gold; distribution of gold; scanning proton microprobe;

D O I：

暂无

中图分类号：

O572.2 [粒子物理学];

学科分类号：

070202 ;

摘要：

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

引用

页码：146 / 148

页数：3