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Research on the on-line determination of formaldehyde gas by the gas–liquid phase chemiluminescence method

Based on the gas–liquid phase chemiluminescence tester independently developed by our laboratory, a highly sensitive, fast and accurate on-line detection method of formaldehyde gas in ambient atmosphere is established. The chemiluminescence system and the trace formaldehyde gas in the air directly u...

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Autores principales: TAN, Wenyuan, Chen, Qi, Wang, Rong, Wang, Zhuqing, Zhang, Huan, Wu, Yuran
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9400167/
https://www.ncbi.nlm.nih.gov/pubmed/36093228
http://dx.doi.org/10.1039/d2ra03175b
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author TAN, Wenyuan
Chen, Qi
Wang, Rong
Wang, Zhuqing
Zhang, Huan
Wu, Yuran
author_facet TAN, Wenyuan
Chen, Qi
Wang, Rong
Wang, Zhuqing
Zhang, Huan
Wu, Yuran
author_sort TAN, Wenyuan
collection PubMed
description Based on the gas–liquid phase chemiluminescence tester independently developed by our laboratory, a highly sensitive, fast and accurate on-line detection method of formaldehyde gas in ambient atmosphere is established. The chemiluminescence system and the trace formaldehyde gas in the air directly undergo an interface heterogeneous chemiluminescence reaction to obtain a strong chemiluminescence signal. Through the measurement of the chemiluminescence signal intensity, a highly sensitive, real-time and on-line method for the determination of formaldehyde in the air was established. Factors influencing the experimental results such as gallic acid, potassium dichromate, reaction medium concentration, surfactant type and concentration, pump speed, tube length, and interfering gas were discussed based on the single factor and orthogonal analysis results. Finally, the optimal detection conditions were collected, and the detection results were compared with the national standard phenol reagent method. The results show that when the concentration of the standard formaldehyde gas is in the range of 0–0.582 μg L(−1), the linear equation of this method is y = 208x + 29.667, the linear coefficient is R(2) = 0.997, and the minimum detection concentration of formaldehyde is 2.327 × 10(−3) μg L(−1). Under the same external conditions, the comparison and analysis using the national standard phenol reagent method proved that this method has the advantages of fast detection speed, low detection limit, good sensitivity, and accurate results, which can be used for real-time and online determination of trace formaldehyde in ambient air.
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spelling pubmed-94001672022-09-08 Research on the on-line determination of formaldehyde gas by the gas–liquid phase chemiluminescence method TAN, Wenyuan Chen, Qi Wang, Rong Wang, Zhuqing Zhang, Huan Wu, Yuran RSC Adv Chemistry Based on the gas–liquid phase chemiluminescence tester independently developed by our laboratory, a highly sensitive, fast and accurate on-line detection method of formaldehyde gas in ambient atmosphere is established. The chemiluminescence system and the trace formaldehyde gas in the air directly undergo an interface heterogeneous chemiluminescence reaction to obtain a strong chemiluminescence signal. Through the measurement of the chemiluminescence signal intensity, a highly sensitive, real-time and on-line method for the determination of formaldehyde in the air was established. Factors influencing the experimental results such as gallic acid, potassium dichromate, reaction medium concentration, surfactant type and concentration, pump speed, tube length, and interfering gas were discussed based on the single factor and orthogonal analysis results. Finally, the optimal detection conditions were collected, and the detection results were compared with the national standard phenol reagent method. The results show that when the concentration of the standard formaldehyde gas is in the range of 0–0.582 μg L(−1), the linear equation of this method is y = 208x + 29.667, the linear coefficient is R(2) = 0.997, and the minimum detection concentration of formaldehyde is 2.327 × 10(−3) μg L(−1). Under the same external conditions, the comparison and analysis using the national standard phenol reagent method proved that this method has the advantages of fast detection speed, low detection limit, good sensitivity, and accurate results, which can be used for real-time and online determination of trace formaldehyde in ambient air. The Royal Society of Chemistry 2022-08-24 /pmc/articles/PMC9400167/ /pubmed/36093228 http://dx.doi.org/10.1039/d2ra03175b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
TAN, Wenyuan
Chen, Qi
Wang, Rong
Wang, Zhuqing
Zhang, Huan
Wu, Yuran
Research on the on-line determination of formaldehyde gas by the gas–liquid phase chemiluminescence method
title Research on the on-line determination of formaldehyde gas by the gas–liquid phase chemiluminescence method
title_full Research on the on-line determination of formaldehyde gas by the gas–liquid phase chemiluminescence method
title_fullStr Research on the on-line determination of formaldehyde gas by the gas–liquid phase chemiluminescence method
title_full_unstemmed Research on the on-line determination of formaldehyde gas by the gas–liquid phase chemiluminescence method
title_short Research on the on-line determination of formaldehyde gas by the gas–liquid phase chemiluminescence method
title_sort research on the on-line determination of formaldehyde gas by the gas–liquid phase chemiluminescence method
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9400167/
https://www.ncbi.nlm.nih.gov/pubmed/36093228
http://dx.doi.org/10.1039/d2ra03175b
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