岩矿测试2011，Vol.30Issue(4)：457-460,4.
P350微色谱柱在线分离富集-火焰原子吸收光谱法测定矿石中痕量金
Quantification of Trace Gold in Ores by Flame Atomic Absorption Spectrometry with P350 Micro Chromatographic Column Online Separation and Enrichment
贺攀红 1荣耀 1龚治湘2
作者信息
- 1. 河南省核工业放射性核素检测中心,河南郑州450002
- 2. 珀金埃尔默仪器(上海)有限公司,上海201203
- 折叠
摘要
Abstract
Using aqua regia as the medium, trace gold was separated from ores by a self-designed micro chromatographic column online separation and enrichment system, and measured by flame atomic absorption spectrometry. The condition of the gold and enrichment with the P350 micro chromatographic column in the process of atomic absorption spectrometry absorbing and effusing solution were optimized. The fast adsorption and elution technology was taken with HC1 solution as leacheate and Na2SO3 solution as the eluent. The quantification of a sample, including separation and measurement, only took one minute and overcame the defect of low sensitivity of the flame atomic absorption spectrometry. Relative standard deviation ( RSD) of the method was less than 3.2% and the detection limit was 0. 078 μg/g. Compared with the method of existing off-line separation and enrichment, this method shows the advantages of higher efficiency, decreased time, and lower cost. Results for the practical sample test are satisfactory.关键词
痕量金/矿石/火焰原子吸收光谱法/微色谱柱/在线分离富集Key words
trace gold/ ore/ flame atomic absorption spectrometry/ micro chromatographic column/ online separation and enrichment引用本文复制引用
贺攀红,荣耀,龚治湘..P350微色谱柱在线分离富集-火焰原子吸收光谱法测定矿石中痕量金[J].岩矿测试,2011,30(4):457-460,4.
