Scholarlink

Abstract <p>The article discusses the possibility of using the INAA method based on a <sup>252</sup>Cf radionuclide neutron source for determining the content of Sc, In and Au in various minerals. The method was tested on samples of cassiterite, wolframite, hubnerite, chalcopyrite, and arsenopyrite, as well as galena and sphalerite (both in a monomineral samples and in their mixtures). Sc was found in the samples at concentrations ranging from 0.8 to 29 ppm in cassiterite and 21.9 to 469 ppm in wolframite (in the latter, it is 1.4 to 30 times higher than the Clarke value). Average In content (g/t): in cassiterite—17 (90 times exceeding Clarke value), in hubnerite—9 (47 times), in chalcopyrite—988 (5200 times), and in mixed sulfides—49.3 (260 times). Results for Au (g/t): in cassiterite—from 0.14 to 66.9 (exceeding Clarke value 32 and 1520 times), in hubnerite—0.28-3.82 (Clark excess 64‒870 times), and in mixed sulfides (arsenopyrite, galena, sphalerite)—0.53-4.55 (120-1034 times).</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Assessment of the Precious Metals Content in Carrier Minerals by the Neutron Activation Analysis with a Radioactive Source

  • 期刊论文

  • 发表日期：

    2025年12月1日

查看全文
  • S. I. Ivannikov,
  • V. P. Zvereva,
  • B. I. Semenyak

摘要

Abstract

The article discusses the possibility of using the INAA method based on a 252Cf radionuclide neutron source for determining the content of Sc, In and Au in various minerals. The method was tested on samples of cassiterite, wolframite, hubnerite, chalcopyrite, and arsenopyrite, as well as galena and sphalerite (both in a monomineral samples and in their mixtures). Sc was found in the samples at concentrations ranging from 0.8 to 29 ppm in cassiterite and 21.9 to 469 ppm in wolframite (in the latter, it is 1.4 to 30 times higher than the Clarke value). Average In content (g/t): in cassiterite—17 (90 times exceeding Clarke value), in hubnerite—9 (47 times), in chalcopyrite—988 (5200 times), and in mixed sulfides—49.3 (260 times). Results for Au (g/t): in cassiterite—from 0.14 to 66.9 (exceeding Clarke value 32 and 1520 times), in hubnerite—0.28-3.82 (Clark excess 64‒870 times), and in mixed sulfides (arsenopyrite, galena, sphalerite)—0.53-4.55 (120-1034 times).