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- Title
泡沫塑料富集■火焰原子吸收光谱法 测定金矿石中金.
- Authors
王小强; 赵亚男; 梁倩; 张丽曼; 张会; 颜蕙园; 余文丽
- Abstract
Gold in gold ores was determined by Flame Atomic Absorption Spectrometry (FAAS) with thiourea elution enriched by polyurethane foam. The working conditions of FAAS such as sample weight, thiourea elution time, adsorption effect of tributyl phosphate and interference of iron were optimized, and the technical problems such as low adsorption efficiency of foam plastics and interference of iron elements were solved. The precision and accuracy of the analysis results are improved. This method has made up for the shortage of traditional FA AS with foam plastics enrichment for the determination of gold content in gold ores. The determination limit of the method was 0. 06 p.g/g for Au and the determination content range was 0. 2--100 »g/g. The determination results of Au in gold ores are in good agreement with the standard values >and there is no significant difference, the precision of the method was less than 2% (RSD, n = 9). The method has the advantages of rapidity, simplicity and practicality. The analysis error meets the requirements of conventional chemical analysis method, and can meet the rapid and accurate determination of gold in gold ores.
- Subjects
GOLD ores; PLASTIC foams; TRIBUTYL phosphate; IRON; ANALYTICAL chemistry; FOAM; URETHANE foam
- Publication
Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue, 2022, Vol 12, Issue 3, p110
- ISSN
2095-1035
- Publication type
Article
- DOI
10.3969/j.issn.2095-1035.2022.03.016