Quantitative analysis of SO2, NO2 and NO mixed gases based on ultraviolet absorption spectrum
文献类型：期刊论文
| 作者 | Y. B. Yang, J. H. Li, Z. H. Zhang, J. N. Wang and G. Y. Lin |
| 刊名 | Analyst
 |
| 出版日期 | 2023 |
| 卷号 | 148期号:24页码:6341-6349 |
| ISSN号 | 0003-2654 |
| DOI | 10.1039/d3an01431b |
| 英文摘要 | SO2, NO2 and NO are the main atmospheric pollutants produced by the combustion of fossil fuel. Detecting these gases is of great significance for atmospheric protection and the online concentration detection of pollutants. In this study, the concentration retrieval methods of NO, NO2 and SO2 and their mutual effects were studied in the wavelength range of 192.3-254.4 nm. In this band, NO, NO2 and SO2 have large absorption cross-sections; however, their spectrum superpositions were serious. A novel method was proposed to separate the superposed absorption spectra of NO and SO2 or NO2. The advantage of this method is that it can remove the influence of SO2 and NO2 on NO concentration retrieval. The fast Fourier transform (FFT) amplitude method was used to calculate the concentrations of SO2 and NO2, and the direct absorption spectroscopy method was used to calculate NO concentration. Via these methods, the gas concentrations of SO2, NO2 and NO can be calculated in ternary-gas mixtures. The experimental results show that these methods can effectively remove the mutual interferences between the concentration retrieval of NO, NO2 and SO2. The maximum absolute values of the relative deviations for the concentration retrieval of SO2, NO2 and NO in ternary-gas mixtures are 3.868%, 4.740% and 5.008%, respectively. These methods have high detection precision and good adaptability and are suitable for online flue detection equipment. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/68545]  |
| 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 | Y. B. Yang, J. H. Li, Z. H. Zhang, J. N. Wang and G. Y. Lin. Quantitative analysis of SO2, NO2 and NO mixed gases based on ultraviolet absorption spectrum[J]. Analyst,2023,148(24):6341-6349. |
| APA | Y. B. Yang, J. H. Li, Z. H. Zhang, J. N. Wang and G. Y. Lin.(2023).Quantitative analysis of SO2, NO2 and NO mixed gases based on ultraviolet absorption spectrum.Analyst,148(24),6341-6349. |
| MLA | Y. B. Yang, J. H. Li, Z. H. Zhang, J. N. Wang and G. Y. Lin."Quantitative analysis of SO2, NO2 and NO mixed gases based on ultraviolet absorption spectrum".Analyst 148.24(2023):6341-6349. |
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