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Minimizing chemical interference errors for the determination of lithiumin brines by flame atomic absorption spectroscopy analysis
Wen Xianming; Ma Peihua; Zhu Geqin; Wu Zhiming
2006
发表期刊RARE METALS
ISSN1001-0521
卷号25期号:4页码:309-315
摘要Chemical interferences (ionization and oxide/hydroxide formation) on the atomic absorbance signal of lithium in FAAS analysis of brine samples are elaborated in this article. It is suggested that inadequate or overaddition of deionization buffers can lead to loss of sensitivities under particular operating conditions. In the analysis of brine samples, signal enhancing and oxide/hydroxide formation inducing signal reduction resulting from overaddition of deionization buffers can be seen with varying amounts of chemical buffers. Based on experimental results, the authors have arrived at the optimized operating conditions for the detection of lithium, under which both ionization and stable compound formation can be suppressed. This is a simplified and quick method with adequate accuracy and precision for the determination of lithium in routine brine samples from chemical plants or R&D laboratories, which contain comparable amounts of lithium with some other components. Chemical interferences (ionization and oxide/hydroxide formation) on the atomic absorbance signal of lithium in FAAS analysis of brine samples are elaborated in this article. It is suggested that inadequate or overaddition of deionization buffers can lead to loss of sensitivities under particular operating conditions. In the analysis of brine samples, signal enhancing and oxide/hydroxide formation inducing signal reduction resulting from overaddition of deionization buffers can be seen with varying amounts of chemical buffers. Based on experimental results, the authors have arrived at the optimized operating conditions for the detection of lithium, under which both ionization and stable compound formation can be suppressed. This is a simplified and quick method with adequate accuracy and precision for the determination of lithium in routine brine samples from chemical plants or R&D laboratories, which contain comparable amounts of lithium with some other components.
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/2308
专题中国科学院青海盐湖研究所
盐湖资源与化学实验室
青海盐湖研究所知识仓储
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Wen Xianming,Ma Peihua,Zhu Geqin,et al. Minimizing chemical interference errors for the determination of lithiumin brines by flame atomic absorption spectroscopy analysis[J]. RARE METALS,2006,25(4):309-315.
APA Wen Xianming,Ma Peihua,Zhu Geqin,&Wu Zhiming.(2006).Minimizing chemical interference errors for the determination of lithiumin brines by flame atomic absorption spectroscopy analysis.RARE METALS,25(4),309-315.
MLA Wen Xianming,et al."Minimizing chemical interference errors for the determination of lithiumin brines by flame atomic absorption spectroscopy analysis".RARE METALS 25.4(2006):309-315.
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