Characterization of 2‐methylglyceric acid oligomers in secondary organic aerosol formed from the photooxidation of isoprene using trimethylsilylation and gas chromatography/ion trap mass spectrometry

化学 异戊二烯 质谱法 电子电离 二聚体 重氮甲烷 化学电离 离子阱 电喷雾电离 质谱 臭氧分解 羧酸 有机化学 离子 电离 色谱法 共聚物 聚合物
作者
Rafał Szmigielski,Jason D. Surratt,Reinhilde Vermeylen,Katarzyna Szmigielska,Jesse H. Kroll,N. L. Ng,S. M. Murphy,Armin Sorooshian,John H. Seinfeld,Magda Claeys
出处
期刊:Journal of Mass Spectrometry [Wiley]
卷期号:42 (1): 101-116 被引量:143
标识
DOI:10.1002/jms.1146
摘要

Abstract In the present work, we have characterized in detail the chemical structures of secondary organic aerosol (SOA) components that were generated in a smog chamber and result from the photooxidation of isoprene under high‐NO x conditions typical for a polluted atmosphere. Isoprene high‐NO x SOA contains 2‐methylglyceric acid (2‐MG) and oligoester derivatives thereof. Trimethylsilylation, in combination with capillary gas chromatography (GC)/ion trap mass spectrometry (MS) and detailed interpretation of the MS data, allowed structural characterization the polar oxygenated compounds present in isoprene SOA up to 2‐MG trimers. GC separation was achieved between 2‐MG linear and branched dimers or trimers, as well as between the 2‐MG linear dimer and isomeric mono‐acetate derivatives thereof. The electron ionization (EI) spectra of the trimethylsilyl derivatives contain a wealth of structural information, including information about the molecular weight (MW), oligoester linkages, terminal carboxylic and hydroxymethyl groups, and esterification sites. Only part of this information can be achieved with a soft ionization technique such as electrospray (ESI) in combination with collision‐induced dissociation (CID). The methane chemical ionization (CI) data were used to obtain supporting MW information. Interesting EI spectral differences were observed between the trimethylsilyl derivatives of 2‐MG linear and branched dimers or trimers and between 2‐MG linear dimer mono‐acetate isomers. Copyright © 2006 John Wiley & Sons, Ltd.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
1秒前
zzz发布了新的文献求助10
1秒前
陈俊雷完成签到 ,获得积分0
2秒前
xyh发布了新的文献求助10
3秒前
duanhuiyuan完成签到,获得积分0
3秒前
4秒前
明天开始好好做人完成签到,获得积分10
5秒前
fyw发布了新的文献求助10
5秒前
5秒前
6秒前
7秒前
6and1完成签到,获得积分10
7秒前
8秒前
8秒前
kk完成签到,获得积分10
9秒前
yaopr发布了新的文献求助20
9秒前
脑洞疼应助Liu采纳,获得10
10秒前
xyh完成签到,获得积分10
10秒前
fyw完成签到,获得积分10
10秒前
xuexuexixi123完成签到 ,获得积分10
10秒前
poorpopsingle发布了新的文献求助30
12秒前
大个应助不糊不喝生椰汁采纳,获得30
12秒前
15秒前
Copyright应助感动的雁枫采纳,获得10
15秒前
ltt发布了新的文献求助10
16秒前
科研通AI6.2应助空空伊采纳,获得10
16秒前
虚幻的冬瓜完成签到,获得积分10
18秒前
斯文败类应助糊涂的听筠采纳,获得10
19秒前
所所应助科研通管家采纳,获得10
20秒前
脑洞疼应助科研通管家采纳,获得10
20秒前
20秒前
bkagyin应助科研通管家采纳,获得10
20秒前
充电宝应助科研通管家采纳,获得10
20秒前
完美世界应助科研通管家采纳,获得10
21秒前
Orange应助科研通管家采纳,获得10
21秒前
21秒前
21秒前
脑洞疼应助科研通管家采纳,获得10
21秒前
21秒前
共享精神应助科研通管家采纳,获得10
21秒前
高分求助中
Principles of Economics, 11th Edition 10000
University Physics with Modern Physics, 16th edition 10000
(应助此贴封号)【重要!!请各用户(尤其是新用户)详细阅读】【科研通的精品贴汇总】 10000
Arthritis and Related Conditions, An Issue of Orthopedic Clinics 1000
Development of a Bridge Weigh-In-Motion System: A technology to convert the bridge response to the passage of traffic into data on vehicle configurations, speeds, times of travel and weights 1000
ズームレンズの光学設計に関する研究 800
Fundamentals of Pharmaceutical and Biologics Regulations: A Global Perspective, Second Edition 700
热门求助领域 (近24小时)
化学 材料科学 医学 生物 纳米技术 工程类 有机化学 化学工程 生物化学 计算机科学 内科学 物理 复合材料 催化作用 细胞生物学 无机化学 光电子学 物理化学 电极 基因
热门帖子
关注 科研通微信公众号,转发送积分 7288320
求助须知:如何正确求助?哪些是违规求助? 8908082
关于积分的说明 18853488
捐赠科研通 6957123
什么是DOI,文献DOI怎么找? 3208876
关于科研通互助平台的介绍 2378670
邀请新用户注册赠送积分活动 2184659