Comparison of Thermal and Non-Thermal Protocols for Analysis of Isoprene Secondary Organic Aerosol (SOA) Generated under Conditions of Low Nitrogen Oxides (NOx)

低氮氧化物 (NOx) 条件下产生的异戊二烯二次有机气溶胶 (SOA) 分析的热法和非热法的比较

基本信息

  • 批准号:
    2001027
  • 负责人:
  • 金额:
    $ 59.65万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2020
  • 资助国家:
    美国
  • 起止时间:
    2020-02-15 至 2024-01-31
  • 项目状态:
    已结题

项目摘要

This project is focused on laboratory studies of the formation of secondary organic aerosol (SOA) in the atmosphere derived from the presence of isoprene. Isoprene is a compound produced and emitted by many species of trees and other plant materials. Experiments will be conducted in a laboratory chamber to investigate the formation of SOA and assess the possible presence of artifacts related to the use of certain experimental methods.This study includes an in-depth, quantitative, molecular-level investigation of isoprene-SOA composition and aging. The objectives of the research are to: (1) synthesize standards to investigate artifact formation and to identify labile components degraded during conventional thermal GC-ESI/MS analysis of isoprene SOA formed under low-nitrogen oxide (NOx) conditions; (2) optimize hydrophilic interaction liquid chromatography (HILIC) protocols for separation of synthetic targets and SOA extracts; and (3) conduct an analysis of the SOA particles and identification of analytical artifacts/decomposition products by comparison of results from HILIC and GC/EI-MS protocols.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
该项目的重点是对异戊二烯在大气中形成二次有机气溶胶的实验室研究。异戊二烯是一种由许多树种和其他植物材料产生和排放的化合物。实验将在实验室中进行,以调查SOA的形成,并评估与使用某些实验方法相关的人工制品的可能存在。这项研究包括对异戊二烯-SOA的组成和老化进行深入的、定量的、分子水平的调查。这项研究的目标是:(1)合成标准,以调查人工产物的形成,并识别在低氮氧化物(NOx)条件下形成的异戊二烯SOA的常规热GC-ESI/MS分析过程中降解的不稳定成分;(2)优化用于分离合成目标和SOA提取物的亲水相互作用液相色谱(HILIC)协议;以及(3)通过比较HILIC和GC/EI-MS协议的结果,对SOA颗粒进行分析,并识别分析人工产物/分解产品。该奖项反映了NSF的法定使命,并通过使用基金会的智力优势和更广泛的影响审查标准进行评估,被认为值得支持。

项目成果

期刊论文数量(36)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Determining Glass Transition Temperatures of Individual Isoprene-Derived Secondary Organic Aerosol Particles
测定单个异戊二烯衍生的二次有机气溶胶颗粒的玻璃化转变温度
  • DOI:
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    0
  • 作者:
    KOLOZSVARI, KATHERINE;Xiao, Yao;Fankhauser, Alison;Yan, Jin;Cooke, Madeline;Waters, Cara;Parham, Rebecca;Armstrong, N. Cazimir;Zhang, Zhenfa;Gold, Avram
  • 通讯作者:
    Gold, Avram
Organosulfates Are Primarily Deprotonated at Atmospheric Aerosol Acidities: pH‐Dependent Protonation State via Raman and Infrared Spectroscopy.
有机硫酸盐主要在大气气溶胶酸度下去质子化:通过拉曼和红外光谱分析 pH 值依赖性质子化状态。
  • DOI:
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Fankhauser, Allison;Lei, Ziying;Daley, Kimberly;Xiao, Yao;Zhang, Zhang;Gold, Avram;Ault, Bruce;Surratt, Jason
  • 通讯作者:
    Surratt, Jason
Insights into the Alkene Triol Conundrum: Characterization and Quantitation of Isoprene-Derived C5H10O3 Reactive Uptake Products
洞察烯烃三醇难题:异戊二烯衍生的 C5H10O3 反应吸收产物的表征和定量
  • DOI:
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    0
  • 作者:
    FRAUENHEIM, MOLLY;Beaver, Melinda;Offenberg, John;Zhang, Zhenfa;Surratt, Jason;Gold, Avram
  • 通讯作者:
    Gold, Avram
Formation Kinetics of Isoprene Epoxydiol-Derived Secondary Organic Aerosol Are Altered Near the Sulfate/Bisulfate pKa
异戊二烯环氧二醇衍生的二次有机气溶胶的形成动力学在硫酸盐/硫酸氢盐 pKa 附近发生变化
  • DOI:
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    0
  • 作者:
    N. CAZIMIR ARMSTRONG, Madeline Cooke
  • 通讯作者:
    N. CAZIMIR ARMSTRONG, Madeline Cooke
Organosulfate Formation in Proxies for Aged Sea Spray Aerosol: Reactive Uptake of Isoprene Epoxydiols to Acidic Sodium Sulfate
  • DOI:
    10.1021/acsearthspacechem.2c00156
  • 发表时间:
    2022-11
  • 期刊:
  • 影响因子:
    3.4
  • 作者:
    Madeline E. Cooke;N. C. Armstrong;Ziying Lei;Yuzhi Chen;Cara M. Waters;Yue Zhang-;Nicolas A. Buchenau;Monica Q. Dibley;Isabel R Ledsky;Tessa Szalkowski;Jamy Y. Lee;K. Baumann;Zhenfa Zhang;W. Vizuete;A. Gold;J. Surratt;A. Ault
  • 通讯作者:
    Madeline E. Cooke;N. C. Armstrong;Ziying Lei;Yuzhi Chen;Cara M. Waters;Yue Zhang-;Nicolas A. Buchenau;Monica Q. Dibley;Isabel R Ledsky;Tessa Szalkowski;Jamy Y. Lee;K. Baumann;Zhenfa Zhang;W. Vizuete;A. Gold;J. Surratt;A. Ault
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Avram Gold其他文献

Real Time Adaptations of Human Airway Epithelial Cells Exposed to the Environmental Peroxide Isoprene Hydroxy Hydroperoxide
  • DOI:
    10.1016/j.freeradbiomed.2022.10.079
  • 发表时间:
    2022-11-01
  • 期刊:
  • 影响因子:
    8.200
  • 作者:
    Edward Pennington;Syed Masood;Zhenfa Zhang;Avram Gold;Weidong Wu;Yi Yang;James Samet
  • 通讯作者:
    James Samet
Live Cell Imaging of Oxidative Stress in Human Airway Epithelial Cells Exposed to a Secondary Organic Aerosol
  • DOI:
    10.1016/j.freeradbiomed.2021.12.174
  • 发表时间:
    2022-02-20
  • 期刊:
  • 影响因子:
    8.200
  • 作者:
    Syed Masood;Edward Pennington;Philip Bromberg;Avram Gold;Zhenfa Zhang;James Samet
  • 通讯作者:
    James Samet
Unexpected 3-Butene-1,2-Diol-Mediated Genotoxicity Implies Alternative Mechanism of 1,3-Butadiene Carcinogenesis
意外的 3-丁烯-1,2-二醇介导的基因毒性意味着 1,3-丁二烯致癌的替代机制
  • DOI:
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Jun Nakamura;Sujey Carro;Avram Gold;Zhenfa Zhang
  • 通讯作者:
    Zhenfa Zhang
Detecting Protein Sulfenylation in Human Airway Epithelial Cells (HAEC) Exposed to an Environmental Peroxides
  • DOI:
    10.1016/j.freeradbiomed.2022.10.078
  • 发表时间:
    2022-11-01
  • 期刊:
  • 影响因子:
    8.200
  • 作者:
    Syed Masood;Edward Pennington;Philip Bromberg;Avram Gold;Zhenfa Zhang;Rebecca Rice;James Samet
  • 通讯作者:
    James Samet
エポキシブタンジオールの遺伝毒性の解析により明らかになったブタジエンの新たな 発癌メカニズム
环氧丁二醇基因毒性分析揭示丁二烯致癌新机制
  • DOI:
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    中村 純;Sujey Carro;Avram Gold;Zhenfa Zhang
  • 通讯作者:
    Zhenfa Zhang

Avram Gold的其他文献

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{{ truncateString('Avram Gold', 18)}}的其他基金

Early-Generation Photochemical Oxidation Products of Isoprene Under Low-NO Conditions:Aerosol Formation Potential and Structural Assignments by Ion Mobility Mass Spectral Analysis
低 NO 条件下异戊二烯的早期光化学氧化产物:通过离子淌度质谱分析确定气溶胶形成潜力和结构分配
  • 批准号:
    2304669
  • 财政年份:
    2023
  • 资助金额:
    $ 59.65万
  • 项目类别:
    Standard Grant
U.S.-France Cooperative Research: Effects of Peripheral Substituents on Physical-Chemical Characteristics of CPD I Analogs
美法合作研究:外围取代基对 CPD I 类似物理化特性​​的影响
  • 批准号:
    9314422
  • 财政年份:
    1994
  • 资助金额:
    $ 59.65万
  • 项目类别:
    Standard Grant
Acquisition of a Hybrid Mass Spectrometer
购买混合质谱仪
  • 批准号:
    9011090
  • 财政年份:
    1990
  • 资助金额:
    $ 59.65万
  • 项目类别:
    Standard Grant

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