Understanding of TEMPO-electrocatalyzed acceptorless dehydrogenation of tetrahydroquinoline by in situ extractive electrospray ionization mass spectrometry

2021 ◽  
Author(s):  
Weixiang Li ◽  
Jianghui Sun ◽  
Yan Wang ◽  
Jinping Qiao ◽  
Lixin He ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Electrospray Ionization Mass Spectrometry ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass

The TEMPO-electrocatalyzed acceptorless dehydrogenation of tetrahydroquinoline was investigated by coupling an electrocatalytic system to in situ extraction electrospray ionization mass spectrometry.

scholarly journals Mössbauer and mass spectrometry support for iron(ii) catalysts in enantioselective C–H activation

2019 ◽  
Vol 48 (16) ◽  
pp. 5135-5139 ◽  
Author(s):  
Joachim Loup ◽  
Tobias Parchomyk ◽  
Stefan Lülf ◽  
Serhiy Demeshko ◽  
Franc Meyer ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Mössbauer Spectroscopy ◽  
Electrospray Ionization ◽  
Electrospray Ionization Mass Spectrometry ◽  
Mossbauer Spectroscopy ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Mößbauer Spectroscopy

A combination of electrospray-ionization mass spectrometry and Mössbauer spectroscopy was used to investigate the species generated in situ in highly enantioselective Fe/NHC-catalyzed C–H alkylations.

scholarly journals Secondary electrospray ionization-mass spectrometry (SESI-MS) breathprinting of multiple bacterial lung pathogens, a mouse model study

2013 ◽  
Vol 114 (11) ◽  
pp. 1544-1549 ◽  
Author(s):  
Jiangjiang Zhu ◽  
Heather D. Bean ◽  
Jaime Jiménez-Díaz ◽  
Jane E. Hill
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Principal Components ◽  
Electrospray Ionization Mass Spectrometry ◽  
Bacterial Pneumonia ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Secondary Electrospray Ionization ◽  
Lung Infections

Bacterial pneumonia is one of the leading causes of disease-related morbidity and mortality in the world, in part because the diagnostic tools for pneumonia are slow and ineffective. To improve the diagnosis success rates and treatment outcomes for bacterial lung infections, we are exploring the use of secondary electrospray ionization-mass spectrometry (SESI-MS) breath analysis as a rapid, noninvasive method for determining the etiology of lung infections in situ. Using a murine lung infection model, we demonstrate that SESI-MS breathprints can be used to distinguish mice that are infected with one of seven lung pathogens: Haemophilus influenzae, Klebsiella pneumoniae, Legionella pneumophila, Moraxella catarrhalis, Pseudomonas aeruginosa, Staphylococcus aureus, and Streptococcus pneumoniae, representing the primary causes of bacterial pneumonia worldwide. After applying principal components analysis, we observed that with the first three principal components (primarily comprised of data from 14 peaks), all infections were separable via SESI-MS breathprinting ( P < 0.0001). Therefore, we have shown the potential of this SESI-MS approach for rapidly detecting and identifying acute bacterial lung infections in situ via breath analysis.

Wooden-tip electrospray ionization mass spectrometry for trace analysis of toxic and hazardous compounds in food samples

2015 ◽  
Vol 7 (14) ◽  
pp. 5886-5890 ◽  
Author(s):  
Bi-cheng Yang ◽  
Feng Wang ◽  
Wei Deng ◽  
Yang Zou ◽  
Fa-ying Liu ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Electrospray Ionization Mass Spectrometry ◽  
Trace Analysis ◽  
Food Samples ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Qualitative And Quantitative ◽  
Hazardous Compounds

Wooden-tip electrospray ionization (wooden-tip ESI) is applied to the rapid, in situ, direct qualitative and quantitative trace analysis of toxic and hazardous compounds in food samples.

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