| 光谱学与光谱分析 |
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| Concentration Calibration Method of Ambient Trace-Gas Monitoring with Tunable Diode Laser Absorption Spectroscopy |
| KAN Rui-feng, LIU Wen-qing, ZHANG Yu-jun, LIU Jian-guo, WANG Min, GAO Shan-hu, CHEN Jun |
| Tunable diode laser absorption spectroscopy; Multiple-reflection cell; Reference cell; Equivalent concentration |
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Abstract Tunable diode laser absorption spectroscopy (TDLAS) is a new method to detect trace-gas qualitatively or quantificationally based on the scan characteristic of the diode laser used to obtain the absorption spectroscopy in the characteristic absorption region. It needs to be combined with a long absorption path in the ambient trace-gas measurements. TDLAS is a new trace gas detective method developed with the combination of a tunable diode laser source and a long absorption path; it has significant advantages not only in the sensitivity but also in rapidity of response. It has been widely used in many atmospheric trace-gases detection, ground trace-gas detection and, gas leakage detection. On-line calibrating is necessary to most trace gas monitor, and in the present paper the authors introduced a simple and accurate method, analyzed it in the theory, and proved it’s feasibility in the experiment.
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Received: 2004-11-25
Accepted: 2005-04-08
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Corresponding Authors:
KAN Rui-feng
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| Cite this article: |
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KAN Rui-feng,LIU Wen-qing,ZHANG Yu-jun, et al. Concentration Calibration Method of Ambient Trace-Gas Monitoring with Tunable Diode Laser Absorption Spectroscopy [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(03): 392-395.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2006/V26/I03/392 |
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