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题名: Comparison of chemical modifiers used for the determination of gold in ores by electrothermal atomic absorption spectrometry
作者: Gong, BL;  Liu, YM;  Li, JX;  Lin, TZ
关键词: electrothermal atomic absorption spectrometry ;  gold ;  ores ;  nickel-vanadium chemical modifier
刊名: ANALYTICA CHIMICA ACTA
发表日期: 1998-05-04
卷: 362, 期:2-3, 页:247-251
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: The interference effects of major matrix elements, contained in gold ores (silicate-, oxide-, sulfide-, bismuth- and tellurium-ores) for the determination of gold by electrothermal atomic absorption spectrometry (ETAAS), were studied. Samples of five one-component (Cu, Mo, Ni, Pd and V) and 12 two-component chemical modifiers composed from above five one-component modifiers were compared for their anti-interference effects on the major matrix elements (Al, As, Bi, Ca, Cu, Fe, Mg, Mn, Pb, Sb, Te and Zn) in gold ores. A chemical-modifier solution composed of 1000 mg l(-1) each of Ni and V showed the best performance. Gold in five decoppered copper oxide ores was determined by ETAAS with the help of the Ni/V chemical modifier without matrix pre-separation. The relative standard deviation was 3.9% (n=9) for 0.47 mg l(-1) gold. The recoveries of added gold (50 mg l(-1)) were 93-102%. The characteristic mass was 12.8 pg. (C) 1998 Elsevier Science B.V.
语种: 英语
WOS记录号: WOS:000073487900017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138476
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Acad Sinica, Dalian Inst Chem Phys, Dalian 116012, Peoples R China

Recommended Citation:
Gong, BL,Liu, YM,Li, JX,et al. Comparison of chemical modifiers used for the determination of gold in ores by electrothermal atomic absorption spectrometry[J]. ANALYTICA CHIMICA ACTA,1998,362(2-3):247-251.
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