UV-Vis spectrophotometric determination of isoprene in atmosphere based on Diels-Alder reaction

被引：0
|
作者：
Yang, Junyi [1 ]
Deng, Rule [1 ]
Jia, Song [1 ]
Wang, Yang [1 ]
Wang, Xuefei [1 ]
机构：
[1] Univ Chinese Acad Sci, Sch Chem Sci, Beijing, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY | 2024年 / 104卷 / 20期
基金：
中国国家自然科学基金;
关键词：
Isoprene detection; optical absorption; Diels-Alder reaction; atmosphere; BREATH ISOPRENE; EMISSION; ACID; AEROSOLS; IMPACT; YIELDS;
D O I：
10.1080/03067319.2023.2223157
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Isoprene is the most abundant biogenic volatile organic compound in the atmosphere. Till now, chromatography is the main detection method for isoprene, dependent on sophisticated instruments and complex operations. An UV-Vis spectrophotometric method based on the Diels-Alder (D-A) reaction was developed to detect isoprene in the atmosphere. The fast D-A reaction between the probe 4-phenyl-1,2,4-triazolin-3,5-dione (PTAD) and isoprene may cause absorbance decrease, which enable it to detect isoprene in solution at 118 nmol center dot L-1 level. Further, isoprene in air at the level of ppbv was detected using this method. Compared with chromatography this method has the advantages of low cost, fast and less dependence on instrument.
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页码：9117 / 9127
页数：11
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