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Fast and Efficient Atmospheric NO2 Collection for Isotopic Analysis by a 3D-Printed Denuder System

文献类型：期刊论文

作者Zhou, Tao2,4; Jiang, Zhuang4; Zhou, Jiacheng; Zhao, Weixiong1; Wu, Yichao4; Yu, Hui1,3; Li, Weikun4; Zhang, Zhongyi4; Su, Guangming4; Ma, Tianming2,4
刊名ANALYTICAL CHEMISTRY
出版日期2022-09-13
ISSN号0003-2700
DOI10.1021/acs.analchem.2c02839
通讯作者Geng, Lei(genglei@ustc.edu.cn)
英文摘要Being major species of atmospheric reactive nitro-gen, nitrogen oxides (NOx = NO + NO2) have important implications for ozone and OH radical formation in addition to nitrogen cycles. Stable nitrogen isotopes ((delta N-15) of NOx have been sought to track NOx emissions and NOx chemical reactivities in the atmosphere. The current atmospheric NO(x )collection methods for isotopic analysis, however, largely suffer from unverified collection efficiency and/or low collection speed (< 10 L/min). The latter makes it difficult to study (delta N-15(NOx) in pristine regions with low NOx concentrations. Here, we present a three-dimensional (3D) -printed honeycomb denuder (3DP-HCD) system, which can effectively collect atmospheric NO2 (a major part of NOx) under a variety of laboratory and field conditions. With a coating solution consisting of 10% potassium hydroxide (KOH) and 25% guaiacol in methanol, the denuder system can collect NO2 with nearly 100% efficiency at flow rates of up to 70 L/min, which is 7 times higher than that of the existing method and allows high-resolution (e.g., diurnal or finer resolution) NO2 collection even in pristine sites. Besides, the (delta N-15 of NO2 collected by the 3DP-HCD system shows good reproducibility and consistency with the previously tested method. Preliminary results of online NO oxidation by a chrome trioxide (CrO3) oxidizer for simultaneous NO and NO2 collection are also presented and discussed.
WOS关键词NITRIC-OXIDE ; NITROGEN-DIOXIDE ; DELTA-N-15 ; EXCHANGE ; NITRATE ; SOIL ; EQUILIBRIUM ; EMISSIONS ; VEHICLE ; GASES
资助项目National Natural Science Foundation of China[41822605] ; National Natural Science Foundation of China[41871051] ; National Natural Science Foundation of China[41727901] ; National Natural Science Foundation of China[U21A2028] ; Fundamental Research Funds for Central Universities ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB 41000000] ; National Key R&D Program of China[2019YFC1509100] ; Guangdong Foundation for Program of Science and Technology Research[2020B1212060053]
WOS研究方向Chemistry
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000861903600001
资助机构National Natural Science Foundation of China ; Fundamental Research Funds for Central Universities ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key R&D Program of China ; Guangdong Foundation for Program of Science and Technology Research
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/129105]  
专题中国科学院合肥物质科学研究院
通讯作者Geng, Lei
作者单位1.Chinese Acad Sci, HFIPS, Anhui Inst Opt & Fine Mech, Lab Atmospher Phys Chem, Hefei 230031, Anhui, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Prov Key Lab Environm Protect & Resource, Guangzhou 510640, Peoples R China
3.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
4.Univ Sci & Technol China, Sch Earth & Spaces Sci, Stable Isotope Lab Ice Core & Atmospher Chem, Hefei 230026, Anhui, Peoples R China
5.Univ Sci & Technol China, CAS Ctr Excellence Comparat Planetol, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Tao,Jiang, Zhuang,Zhou, Jiacheng,et al. Fast and Efficient Atmospheric NO2 Collection for Isotopic Analysis by a 3D-Printed Denuder System[J]. ANALYTICAL CHEMISTRY,2022.
APA Zhou, Tao.,Jiang, Zhuang.,Zhou, Jiacheng.,Zhao, Weixiong.,Wu, Yichao.,...&Geng, Lei.(2022).Fast and Efficient Atmospheric NO2 Collection for Isotopic Analysis by a 3D-Printed Denuder System.ANALYTICAL CHEMISTRY.
MLA Zhou, Tao,et al."Fast and Efficient Atmospheric NO2 Collection for Isotopic Analysis by a 3D-Printed Denuder System".ANALYTICAL CHEMISTRY (2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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