Photochemical conversion of toluene in simulated atmospheric matrix and characterization of large molecular weight products by +APPI FT-ICR MS

2019 ◽  
Vol 649 ◽  
pp. 111-119 ◽  
Author(s):  
Yalu Liu ◽  
Qianqian Li ◽  
Guijin Su ◽  
Da Wei ◽  
Minghui Zheng ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Photochemical Conversion ◽  
Large Molecular Weight ◽  
Ft Icr Ms ◽  
Ft Icr

Molecular characterization of size-segregated organic aerosols in the urban boundary layer in wintertime Beijing by FT-ICR MS

2021 ◽  
Author(s):  
Qiaorong Xie ◽  
Sihui Su ◽  
Shuang Chen ◽  
Qiang Zhang ◽  
Siyao Yue ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Size Distribution ◽  
Molecular Characterization ◽  
Organic Aerosols ◽  
Urban Boundary Layer ◽  
Vertical Profiles ◽  
Unique Information ◽  
Ft Icr Ms ◽  
Ft Icr

Our study provides unique information on the vertical profiles and size distribution of urban organic aerosols by FT-ICR MS.

scholarly journals Characterization of Heavy Oil by FT-ICR MS Coupled with Various Ionization Techniques

2009 ◽  
Vol 52 (4) ◽  
pp. 159-171 ◽  
Author(s):  
Keiko Miyabayashi ◽  
Yasuhide Naito ◽  
Mikio Miyake
Keyword(s):  
Heavy Oil ◽  
Ft Icr Ms ◽  
Ft Icr

scholarly journals Molecular characterization of aldehydes and ketones in particle phase of mainstream and sidestream cigarette smoke

2019 ◽  
Vol 6 (2) ◽  
pp. 181832
Author(s):  
Xiu Chen ◽  
Quan Shi ◽  
Xibin Zhou ◽  
Xuezheng Liu
Keyword(s):  
Mass Spectrometry ◽  
Cigarette Smoke ◽  
Gas Chromatography Mass Spectrometry ◽  
Ion Cyclotron Resonance ◽  
Particle Phase ◽  
Orbitrap Mass Spectrometry ◽  
Aldehydes And Ketones ◽  
Ft Icr Ms ◽  
Ft Icr

Aldehydes and ketones (AKs) in cigarette smoke are risk to humans and environment. Due to the complexity of itself and the interference of the smoke tar matrix, the aldehydes and ketones in particle phase (AKPs) of mainstream smoke (MSS) and sidestream smoke (SSS) have not been well investigated. In this study, the AKPs of MSS and SSS were derivatized into polar products by reaction with Girard T reagent. The derivatives were isolated rapidly by column chromatography and analysed by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Fifteen species of aldehydes and ketones were detected by positive ion electrospray ionization (ESI) FT-ICR MS: O 1–6 , N 1 O 1–4 , N 2 O 1–3 and N 3 O 2–3 . The total number of AKPs obtained by ESI FT-ICR MS in MSS and SSS is about 1100 and 970, respectively. After hydrolysis, the original AKPs were obtained and 63 carbonyls were identified and quantified by gas chromatography–mass spectrometry (GCMS). The nitrogen-containing and high-oxygen AKPs were further characterized by Orbitrap mass spectrometry. Structures of compounds with high relative abundance in the mass spectrum were speculated (e.g. a series of degradants of cembrenediol) by comparison with the results of GCMS.

scholarly journals FT-ICR-MS Characterization of Intermediates in the Biosynthesis of the α-Methylbutyrate Side Chain of Lovastatin by the 277 kDa Polyketide Synthase LovF

Biochemistry ◽  
2011 ◽  
Vol 50 (2) ◽  
pp. 287-299 ◽  
Author(s):  
Michael J. Meehan ◽  
Xinkai Xie ◽  
Xiling Zhao ◽  
Wei Xu ◽  
Yi Tang ◽  
...  
Keyword(s):  
Polyketide Synthase ◽  
Side Chain ◽  
Ft Icr Ms ◽  
Ft Icr

Characterization of petroleum acids using combined FT-IR, FT-ICR–MS and GC–MS: Implications for the origin of high acidity oils in the Muglad Basin, Sudan

2010 ◽  
Vol 41 (9) ◽  
pp. 959-965 ◽  
Author(s):  
Maowen Li ◽  
Dingsheng Cheng ◽  
Xiaohua Pan ◽  
Lirong Dou ◽  
Dujie Hou ◽  
...  
Keyword(s):  
High Acidity ◽  
Ft Ir ◽  
Ft Icr Ms ◽  
Ft Icr

Emerging Technologies for Identification of Disinfection Byproducts:  GC/FT−ICR MS Characterization of Solvent Artifacts

2007 ◽  
Vol 41 (15) ◽  
pp. 5419-5425 ◽  
Author(s):  
Caleb Heffner ◽  
Indira Silwal ◽  
John M. Peckenham ◽  
Touradj Solouki
Keyword(s):  
Emerging Technologies ◽  
Disinfection Byproducts ◽  
Ft Icr Ms ◽  
Ft Icr
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