Determination of europium (III) by graphite furnace atomic absorption spectrometry with preconcentration by 2-thenoyl trifluoroacetone phenanthrolene modified electrode

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	Determination of europium (III) by graphite furnace atomic absorption spectrometry with preconcentration by 2-thenoyl trifluoroacetone phenanthrolene modified electrode
	H. B. He; W. J. Zhang; G. Z. Ma; H. X. Shen
	2001
发表期刊	Chinese Journal of Analytical Chemistry
ISSN	0253-3820
卷号	29 期号:10 页码:1125-1128
摘要	A turgsten filament electrode decorated with a mixture of 2-Thenoyl trifluoracetone (HTTA) and phenanthrolene (phen) were used for preconcentration of europium in (CH2)(6)N-4-HCl buffer, then the electrode was put into a pyrolysis coated graphite cup( PGC) for direct atomization and measurement. The linearity range was found from 0.29 x 10(-8) to 5.9 x 10(-8) mol/L. The relative standard deviation(RSD) was 5.26% and the detection limit (C-L) was 5.9 x 10(-10) mol/L, which was 63.5% to that of HTTA modified electrode and 100-fold lower than reported value determined by pyrolysis coated graphite tube (PGT). This method is more sensitive and selective because ternary minced ligand complex was formed when using two kinds of reagents with suitable ratio. Some common metal ions including aluminum and iron were tolerated, and the interference of rare earth metals was reduced notably.
部门归属	shenyang inst technol, dept basic courses, shenyang 110016, peoples r china. chinese acad sci, inst met res, shenyang 110016, peoples r china. nankai univ, dept chem, tianjin 300071, peoples r china.;he, hb (reprint author), shenyang inst technol, dept basic courses, shenyang 110016, peoples r china
关键词	Mixed Ligands Preconcentration Atomic Absorption Spectrometry Europium
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WOS记录号	WOS:000171887300003
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36666
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. B. He,W. J. Zhang,G. Z. Ma,et al. Determination of europium (III) by graphite furnace atomic absorption spectrometry with preconcentration by 2-thenoyl trifluoroacetone phenanthrolene modified electrode[J]. Chinese Journal of Analytical Chemistry,2001,29(10):1125-1128.
APA	H. B. He,W. J. Zhang,G. Z. Ma,&H. X. Shen.(2001).Determination of europium (III) by graphite furnace atomic absorption spectrometry with preconcentration by 2-thenoyl trifluoroacetone phenanthrolene modified electrode.Chinese Journal of Analytical Chemistry,29(10),1125-1128.
MLA	H. B. He,et al."Determination of europium (III) by graphite furnace atomic absorption spectrometry with preconcentration by 2-thenoyl trifluoroacetone phenanthrolene modified electrode".Chinese Journal of Analytical Chemistry 29.10(2001):1125-1128.