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Review

Detecting and Quantifying Polyhaloaromatic Environmental Pollutants by Chemiluminescence-Based Analytical Method

by 1,2,*, 1,2, 1,2 and 1,2,*
1
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
*
Authors to whom correspondence should be addressed.
Academic Editors: Wenbin Liu and Marcello Brigante
Molecules 2021, 26(11), 3365; https://doi.org/10.3390/molecules26113365
Received: 26 April 2021 / Revised: 24 May 2021 / Accepted: 28 May 2021 / Published: 2 June 2021
(This article belongs to the Special Issue Environmental Analysis of Organic Pollutants)
Polyhaloaromatic compounds (XAr) are ubiquitous and recalcitrant in the environment. They are potentially carcinogenic to organisms and may induce serious risks to the ecosystem, raising increasing public concern. Therefore, it is important to detect and quantify these ubiquitous XAr in the environment, and to monitor their degradation kinetics during the treatment of these recalcitrant pollutants. We have previously found that unprecedented intrinsic chemiluminescence (CL) can be produced by a haloquinones/H2O2 system, a newly-found OH-generating system different from the classic Fenton system. Recently, we found that the degradation of priority pollutant pentachlorophenol by the classic Fe(II)-Fenton system could produce intrinsic CL, which was mainly dependent on the generation of chloroquinone intermediates. Analogous effects were observed for all nineteen chlorophenols, other halophenols and several classes of XAr, and a novel, rapid and sensitive CL-based analytical method was developed to detect these XAr and monitor their degradation kinetics. Interestingly, for those XAr with halohydroxyl quinoid structure, a Co(II)-mediated Fenton-like system could induce a stronger CL emission and higher degradation, probably due to site-specific generation of highly-effective OH. These findings may have broad chemical and environmental implications for future studies, which would be helpful for developing new analytical methods and technologies to investigate those ubiquitous XAr. View Full-Text
Keywords: polyhaloaromatic compounds; chemiluminescence; analytical method; Fenton system; hydroxyl radicals polyhaloaromatic compounds; chemiluminescence; analytical method; Fenton system; hydroxyl radicals
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MDPI and ACS Style

Zhu, B.-Z.; Tang, M.; Huang, C.-H.; Mao, L. Detecting and Quantifying Polyhaloaromatic Environmental Pollutants by Chemiluminescence-Based Analytical Method. Molecules 2021, 26, 3365. https://doi.org/10.3390/molecules26113365

AMA Style

Zhu B-Z, Tang M, Huang C-H, Mao L. Detecting and Quantifying Polyhaloaromatic Environmental Pollutants by Chemiluminescence-Based Analytical Method. Molecules. 2021; 26(11):3365. https://doi.org/10.3390/molecules26113365

Chicago/Turabian Style

Zhu, Ben-Zhan, Miao Tang, Chun-Hua Huang, and Li Mao. 2021. "Detecting and Quantifying Polyhaloaromatic Environmental Pollutants by Chemiluminescence-Based Analytical Method" Molecules 26, no. 11: 3365. https://doi.org/10.3390/molecules26113365

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