Correction Method of Light Source Interference for Simultaneous Determination of Selenium and Lead by Non-dispersive Hydride Generation-Atomic Fluorescence Spectrometry

doi:10.19756/j.issn.0253-3820.181542

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	Correction Method of Light Source Interference for Simultaneous Determination of Selenium and Lead by Non-dispersive Hydride Generation-Atomic Fluorescence Spectrometry
	C.Tao; C.S.Li; W.C.Chu; R.R.Gao; Z.H.Zhou; Y.M.Li
	2019
发表期刊	Chinese Journal of Analytical Chemistry
ISSN	0253-3820
卷号	47 期号:1 页码:163-168
摘要	Hollow cathode lamps (HCL) are the most commonly used excitation sources for hydride generation-atomic fluorescence spectrometry (HG-AFS). In general, there was lead (Pb) interference in selenium (Se) HCL. This kind of light source interference affected the accuracy of the detection results when Se and Pb simultaneously were determined by HG-AFS. In this work, the effects of light source interference were discussed and analyzed, and a light source interference factor method was proposed to correct the spectral interference. This method had many advantages including simple operation and high reliability, and appropriately reduced the purity of the cathode of the light source. The spectral interference of Se HCL was discussed. The conditions of simultaneous determination of Se and Pb in K-3[Fe(CN)(6)]-KBH4-HCl chemical generation system were optimized, and the influence of Pb interference in HCL of Se was discussed. In the concentration range of 2-50 mu g/L, the detection limit of Se was 0.034 mu g/L (r = 0.9995), and the detection limit of Pb was 0.019 mu g/L (r = 0.9997). The method precisions were 0. 85% (10 mu g/L, Se, n =9) and 0.47% (10 mu g/L, Pb, n = 9), respectively. The feasibility of the method was confirmed by the simultaneous detection of national standard sample rice GBW10010 (GSB-1), wheat GBW10011 (GSB-2) and soy flour. The results of the light source calibration were consistent with the standard values.
关键词	Atomic fluorescence spectroscopy,Selenium,Lead,Interference,correction,microextraction,samples,Chemistry
DOI	10.19756/j.issn.0253-3820.181542
收录类别	SCI
语种	中文
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63046
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	C.Tao,C.S.Li,W.C.Chu,et al. Correction Method of Light Source Interference for Simultaneous Determination of Selenium and Lead by Non-dispersive Hydride Generation-Atomic Fluorescence Spectrometry[J]. Chinese Journal of Analytical Chemistry,2019,47(1):163-168.
APA	C.Tao,C.S.Li,W.C.Chu,R.R.Gao,Z.H.Zhou,&Y.M.Li.(2019).Correction Method of Light Source Interference for Simultaneous Determination of Selenium and Lead by Non-dispersive Hydride Generation-Atomic Fluorescence Spectrometry.Chinese Journal of Analytical Chemistry,47(1),163-168.
MLA	C.Tao,et al."Correction Method of Light Source Interference for Simultaneous Determination of Selenium and Lead by Non-dispersive Hydride Generation-Atomic Fluorescence Spectrometry".Chinese Journal of Analytical Chemistry 47.1(2019):163-168.

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