A UV digital micromirror spectrometer for dispersive AFS spectral interference in simultaneous determination of Se and Pb
文献类型：期刊论文
| 作者 | Tao, C.; Li, C. S.; Li, Y. C.; Wang, H. X.; Zhang, Y. R.; Zhou, Z. H.; Mao, X. F.; Ma, Z. Y.; Tian, D. |
| 刊名 | Journal of Analytical Atomic Spectrometry
 |
| 出版日期 | 2018 |
| 卷号 | 33期号:12页码:2098-2106 |
| 关键词 | atomic fluorescence spectrometry recent advance part i generation samples cd device hg ms selenium Chemistry Spectroscopy |
| ISSN号 | 0267-9477 |
| DOI | 10.1039/c8ja00230d |
| 英文摘要 | Hollow cathode lamps (HCLs) are excitation light sources commonly used in hydride generation atomic fluorescence spectrometry (HG-AFS). There are obvious Pb interfering lines at 217.0 nm, 261.3 nm, and 283.3 nm in the atomic fluorescence spectrum excited by Se HCLs. This will induce erroneously measured results especially when using the non-dispersive detection method when Se and Pb are detected simultaneously. To solve the spectral interference caused by Se HCLs, in this paper, a UV digital micromirror spectrometer using a digital micromirror device (DMD) as a spatial light modulator, a grating as a spectroscope, and a photomultiplier tube (PMT) as a detector is designed for dispersive atomic fluorescence spectrometry. In addition, a modified DMD with a cover window made of Corning HPFS (R) 7980 standard grade fused silica was used to provides a higher transmittance of 180-320 nm. The most attractive features of this UV digital micromirror spectrometer are its simple structure, high sensitivity, no macroscopic moving parts, and rapid spectral analysis (0.419 s per spectrum). After optimizing DMD and PMT control parameters, the effects of the chemical generation system (K3Fe(CN)(6), KBH4, and HCl) are investigated. The atomic fluorescence spectra of Se and Pb are obtained, and the detection limits of the analytical lines are discussed. The feasibility of the present method is confirmed by simultaneous detection of Se and Pb using water samples (GSBZ50031-94 and GSB07-1183-2000) and multi-element standard solution (GBW(E)080669) as reference materials. This study demonstrates the potential of the proposed spectrometer for dispersive HG-AFS, which appropriately reduces the purity requirements of the light source and the spectral interference from light sources. It is also applicable to simultaneous detection using multi-element HCLs or continuous light sources. |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/60881]  |
| 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 | Tao, C.,Li, C. S.,Li, Y. C.,et al. A UV digital micromirror spectrometer for dispersive AFS spectral interference in simultaneous determination of Se and Pb[J]. Journal of Analytical Atomic Spectrometry,2018,33(12):2098-2106. |
| APA | Tao, C..,Li, C. S..,Li, Y. C..,Wang, H. X..,Zhang, Y. R..,...&Tian, D..(2018).A UV digital micromirror spectrometer for dispersive AFS spectral interference in simultaneous determination of Se and Pb.Journal of Analytical Atomic Spectrometry,33(12),2098-2106. |
| MLA | Tao, C.,et al."A UV digital micromirror spectrometer for dispersive AFS spectral interference in simultaneous determination of Se and Pb".Journal of Analytical Atomic Spectrometry 33.12(2018):2098-2106. |
入库方式： OAI收割
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。