Atmospheric-Pressure Pyrolysis Study of Chlorobenzene Using Synchrotron Radiation Photoionization Mass Spectrometry

Xu, Minggao; Zhu, Bin; Zhao, Long; Pan, Yang; Yang, Jiuzhong

doi:10.1021/acs.jpca.0c10413

Cited by 6 publications

(5 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the solvent content and solvent clusters are also important for the protonation process, and the decrease of ion intensities with a further increase of dopant content from 7:3 to 6:4 ( V methanol / V dopant ) in Figure 2 was speculated to be partially due to the decreased methanol content, which resulted in reduced methanol clusters for proton transfer reactions. The IEs, 46 PA, 46 photoionization cross‐sections (PICS), 47–49 and relative polarities (RPs) 50 of four dopants and methanol are listed in Table 1.

normalD ((), dopant) goodbreak+ italichv \to {normalD ˙}^{+} goodbreak+ e^{-},

{normalD ˙}^{+} goodbreak+ normalM \to {[M + H]}^{+} goodbreak+ ([], normalD goodbreak- normalH) ˙,

{normalD ˙}^{+} goodbreak+ nS \to {[(normalS) n + H]}^{+} goodbreak+ ([], normalD goodbreak- normalH) ˙,

{[(normalS) n + H]}^{+} goodbreak+ normalM \to {[M + (normalS) n + H]}^{+},

{[M + (normalS) n + H]}^{+} \to {[M + H]}^{+} goodbreak+ nS .

…”

Section: Resultsmentioning

confidence: 99%

“… b The PICS values of compounds were available from Zhou et al 47 and Xu et al 49 The PICS value of anisole was determined at 9.8 eV 48 …”

Section: Resultsmentioning

confidence: 99%

“…33 Therefore, the solvent content and solvent clusters are also important for the protonation process, and the decrease of ion intensities with a further increase of dopant content from 7:3 to 6:4 (V methanol /V dopant ) in Figure 2 was speculated to be partially due to the decreased methanol content, which resulted in reduced methanol clusters for proton transfer reactions. The IEs, 46 PA, 46 photoionization cross-sections (PICS), [47][48][49] and relative polarities (RPs) 50 of four dopants and methanol are listed in Table 1.…”

Section: Dopant Optimizationmentioning

confidence: 99%

“…The effect of dopants in DESI/PI on the ionization of PC (32:0) was also investigated in mouse brain homogenates. When volume content of dopant was increased from 0% to 40%, the The PICS values of compounds were available from Zhou et al 47 and Xu et al 49 The PICS value of anisole was determined at 9.8 eV. 48 c…”

Section: Imaging Of Pristine Mouse Brain Tissuementioning

confidence: 99%

See 3 more Smart Citations

Effects of dopants in the imaging of mouse brain by desorption electrospray ionization/post‐photoionization mass spectrometry

et al. 2022

J Mass Spectrom

Self Cite

View full text Add to dashboard Cite

Desorption electrospray ionization/post‐photoionization (DESI/PI) is a newly developed ionization method by the combination of DESI and post‐photoionization for the simultaneous imaging of polar and nonpolar compounds in biological tissues. Dopants are of great importance in DESI/PI for the enhancement of signal intensities through ion–molecule reactions. In this work, to evaluate the performance of dopants in DESI/PI, an efficient homogenate model was developed, and four kinds of dopants (toluene, chlorobenzene, bromobenzene, and anisole) were tested using homogenate of mouse brain tissue as target sample. The influences of the dopants on the signal enhancements of different compounds were explained reasonably by the ionization mechanism. Then, the dopants with their optimum volume contents were applied to the mass spectrometry imaging (MSI). For a comprehensive imaging of various compounds with different polarities, methanol/toluene/formic acid (7:3:0.1) was chosen as the best choice. Finally, the stronger quantitative ability of DESI/PI with toluene as dopant for a few compounds in mouse brain tissue was demonstrated.

show abstract

normalD ((), dopant) goodbreak+ italichv \to {normalD ˙}^{+} goodbreak+ e^{-},

{normalD ˙}^{+} goodbreak+ normalM \to {[M + H]}^{+} goodbreak+ ([], normalD goodbreak- normalH) ˙,

{normalD ˙}^{+} goodbreak+ nS \to {[(normalS) n + H]}^{+} goodbreak+ ([], normalD goodbreak- normalH) ˙,

{[(normalS) n + H]}^{+} goodbreak+ normalM \to {[M + (normalS) n + H]}^{+},

{[M + (normalS) n + H]}^{+} \to {[M + H]}^{+} goodbreak+ nS .

…”

Section: Resultsmentioning

confidence: 99%

“… b The PICS values of compounds were available from Zhou et al 47 and Xu et al 49 The PICS value of anisole was determined at 9.8 eV 48 …”

Section: Resultsmentioning

confidence: 99%

Section: Dopant Optimizationmentioning

confidence: 99%

Section: Imaging Of Pristine Mouse Brain Tissuementioning

confidence: 99%

See 2 more Smart Citations

Effects of dopants in the imaging of mouse brain by desorption electrospray ionization/post‐photoionization mass spectrometry

et al. 2022

J Mass Spectrom

Self Cite

View full text Add to dashboard Cite

show abstract

“…Compared with vacuum ultraviolet (VUV) lamp and laser, the synchrotron radiation (SR) light source offers the advantages of wide wavelength tunability and high brightness. SR-PIMS has been widely utilized for the investigation of chemical reactions involving combustion, pyrolysis, and gas–solid heterogeneous catalysis. , By scanning photon energies, photoionization efficiency (PIE) curves are obtained to distinguish isomers/isobars, whose further verification and calculation of molar fractions can be performed via simulating the PIE curves with known absolute photoionization cross sections (PICSs) of products. , …”

Section: Introductionmentioning

confidence: 99%

Online Exploring the Gaseous Oil Fumes from Oleic Acid Thermal Oxidation by Synchrotron Radiation Photoionization Mass Spectrometry

Qian,

Hu,

et al. 2023

J. Am. Soc. Mass Spectrom.

Self Cite

View full text Add to dashboard Cite

Estimate of the C−Cl photoionization cross section and absolute photoionization cross sections of chlorinated organic compounds

Chen,

Taatjes,

Meloni

2024

ChemPhysChem

View full text Add to dashboard Cite

Chlorinated organic compounds are prominently used for industrial production, but their vapors and emission byproducts can cause detrimental effects to human health and the environment. To accurately quantify organochlorine compounds, the absolute photoionization cross section of tetrachloroethylene, chlorobenzene, 1,2‐dichlorobenzene, and chloroacetone are measured using multiplexed synchrotron photoionization mass spectrometry at the Advanced Light Source at Lawrence Berkeley National Laboratory. These measurements allow for the estimation of the C‐Cl photoionization cross section, increasing quantification accuracy of chlorinated emissions for kinetic modeling and pollutant mitigation. CBS‐QB3 calculations of adiabatic ionization energies and thermochemical appearance energies are also presented and agree well with the experimental results.

show abstract

Atmospheric-Pressure Pyrolysis Study of Chlorobenzene Using Synchrotron Radiation Photoionization Mass Spectrometry

Cited by 6 publications

References 52 publications

Effects of dopants in the imaging of mouse brain by desorption electrospray ionization/post‐photoionization mass spectrometry

Effects of dopants in the imaging of mouse brain by desorption electrospray ionization/post‐photoionization mass spectrometry

Online Exploring the Gaseous Oil Fumes from Oleic Acid Thermal Oxidation by Synchrotron Radiation Photoionization Mass Spectrometry

Estimate of the C−Cl photoionization cross section and absolute photoionization cross sections of chlorinated organic compounds

Contact Info

Product

Resources

About