2 articles for “Low Gold Content”

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Research ArticleOpen accessIn the keywordsNew Golden Red Sodium Calcium Silicate GlassesWang Cheng-Yu, Wun Nuan-Xin, Ge Yi et al.Traditional golden red glasses were based on K2O-PbO-SiO2 composition system. In this paper, we reported new golden red glasses based on Na2O-CaO-SiO2 system without SnO2 and PbO in them. By using a spectrophotometer and chromamter color difference meter, it was found that the new glasses had similar optical properties to the traditional ones. The diameter of the gold particles in … …International Journal of Structural Glass and Advanced Materials Research, Vol. 3, Issue 1 · 13 Feb 2019 · 7,061 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEnvironmental Pollution by Heavy Metals in the Gold Mining Region of East CameroonDallou Guy Blanchard, Ngoa Engola Louis, Abdourahimi et al.The main objective of this study is to assess the level of heavy metals pollution in soil samples collected around gold mines located in Betaré Oya (BO) and Batouri (BA) in Eastern Cameroon. Elemental analysis of soil samples was carried out using Quant´X EDXRF spectrometer. Its sensitivity and accuracy were increased by using the Fundamental Parameter approach for quantification of … …American Journal of Environmental Sciences, Vol. 14, Issue 5 · 7 Nov 2018 · 9,777 accessesView PDF Cite