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中国无机分析化学:2022,12(3):110-114
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泡沫塑料富集-火焰原子吸收光谱法测定金矿石中金
王小强1, 赵亚男1, 梁 倩1, 张丽曼1, 张会1, 颜蕙园1, 余文丽2
(1.河南省有色金属地质勘查总院;2.河南省有色金属地质矿产局联合实验室)
Determination of Gold in Gold Ores by Flame Atomic Absorption Spectrometry After Enrichment with Foam Plastics
WANG Xiaoqiang1, ZHAO Yanan1, LIANG Qian1, ZHANG Liman1, ZHANG Hui1, YAN Huiyuan1, YU Wenli2
(1.General Institute for Non-ferrous Metals and Geological Exploration of Henan Province;2.Joint Laboratory of Henan Province Non-ferrous Metals Geological and Mineral Resources Bureau)
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投稿时间:2021-08-24    修订日期:2021-08-31
中文摘要: 采用聚氨酯泡塑富集硫脲洗脱-火焰原子吸收光谱法测定金矿石中金。对样品称样量、硫脲洗脱时间、磷酸三丁酯的吸附效果和铁元素的干扰等工作条件进行了优化,解决了泡沫塑料吸附效率低和铁元素的干扰等技术性难题,提高了分析结果的精密度和准确度,弥补了传统的泡沫塑料富集-火焰原子吸收光谱法测定金矿石中金量的不足,方法检出限为0.06 μg/g,测定范围为 0.2 μg/g~100 μg/g,测定结果与标准值符合性较好,无显著性差异,精密度(RSD, n = 9) 小于2%。方法具有快速、简便、实用等优点,分析误差满足常规化学分析法的要求,能满足金矿石中金量的快速、准确测定。
Abstract:Gold in gold ores was determined by Flame Atomic Absorption Spectrometry with thiourea elution enriched by polyurethane foam. The working conditions such as sample weight, thiourea elution time, adsorption effect of tributyl phosphate and interference of iron were optimized, 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, The method has made up for the shortage of traditional foam plastics enrichment and flame atomic absorption spectrometry for the determination of gold content in gold ores. The determination limit of the method was 0.06 μg/g for Au and the determination content range was of 0.2 μg/g~100 μg/g, The determination results 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 ore.
文章编号:     中图分类号:O 657.31    文献标志码:
基金项目:河南省2016年度“两权价款”地质科研项目(2015199203)
引用文本:
王小强,赵亚男,梁 倩,张丽曼,张会,颜蕙园,余文丽.泡沫塑料富集-火焰原子吸收光谱法测定金矿石中金[J].中国无机分析化学,2022,12(3):110-114.
WANG Xiaoqiang,ZHAO Yanan,LIANG Qian,ZHANG Liman,ZHANG Hui,YAN Huiyuan,YU Wenli.Determination of Gold in Gold Ores by Flame Atomic Absorption Spectrometry After Enrichment with Foam Plastics[J].Chinese Journal of Inorganic Analytical Chemistry,2022,12(3):110-114.

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