Experimental research on ammonia concentration detection with white light-emitting diodes

Huang, Si-Yu, Lu, Hou-Bing, Shao, Li, Zhang, Yu-Jun, Zhang, Kai, Zheng, Chao

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For Russian citation (Opticheskii Zhurnal):

K. Zhang, H.-B. Lu, L. Shao, C. Zheng, Y.-J. Zhang, and S.-Y. Huang Experimental research on ammonia concentration detection with white light-emitting diodes (Контроль концентрации аммиака с использованием светодиода белого свечения) [на англ. яз.] // Оптический журнал. 2021. Т. 88. № 9. С. 93–100. http://doi.org/10.17586/1023-5086-2021-88-09-93-100

K. Zhang, H.-B. Lu, L. Shao, C. Zheng, Y.-J. Zhang, and S.-Y. Huang Experimental research on ammonia concentration detection with white light-emitting diodes (Контроль концентрации аммиака с использованием светодиода белого свечения) [in English] // Opticheskii Zhurnal. 2021. V. 88. № 9. P. 93–100. http://doi.org/10.17586/1023-5086-2021-88-09-93-100

For citation (Journal of Optical Technology):

K. Zhang, H.-B. Lu, L. Shao, C. Zheng, Y.-J. Zhang, and S.-Y. Huang, "Experimental research on ammonia concentration detection with white light-emitting diodes," Journal of Optical Technology. 88(9), 548-552 (2021). https://doi.org/10.1364/JOT.88.000548

Abstract:

Ammonia (NH3) is the most abundant alkaline gas in the atmosphere and the cause of the majority of secondary particles in particulate matter PM2.5. The method of ultraviolet spectrum analysis is generally adopted in the traditional ammonia concentration detection with the deuterium or xenon lamp, and its cost is relatively high. In this paper, white light-emitting diodes of a lower cost have been used as the alternative light source.

Then an experimental research on ammonia concentration detection has been carried out and the results have been compared among those using white light-emitting diodes, deuterium and xenon lamps. The results show that under the same experimental conditions, using white light-emitting diodes to measure the ammonia concentration can achieve the same accuracy as that with deuterium or xenon lamps. With this conclusion it can be provided one solution for the light source selection of ammonia concentration detection with low-cost and guaranteed accuracy.

Keywords:

ammonia, concentration detection, white light-emitting diodes, absorbance

Acknowledgements:

The research work of this paper is supported by the key research and development project of Anhui Province “Development and application of mid-infrared laser spectral in-situ detector for the ammonia volatilization flux in atmosphere of agricultural source” (201904a07020093) and Open-Ended Fund of Anhui Key Laboratory of Mine Intelligent Equipment and Technology, Anhui University of Science & Technology (KSZN202001003).

OCIS codes: 250.0250, 010.1290, 020.0020

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