High-field FT-ICR mass spectrometry and NMR spectroscopy to characterize DOM removal through a nanofiltration pilot plant

2014 ◽  
Vol 67 ◽  
pp. 154-165 ◽  
Author(s):  
Nuria Cortés-Francisco ◽  
Mourad Harir ◽  
Marianna Lucio ◽  
Gemma Ribera ◽  
Xavier Martínez-Lladó ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Pilot Plant ◽  
High Field ◽  
Ft Icr

scholarly journals Trichilones A–E: New Limonoids from Trichilia adolfi

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3070
Author(s):  
Mariela Gonzalez-Ramirez ◽  
Ivan Limachi ◽  
Sophie Manner ◽  
Juan C. Ticona ◽  
Efrain Salamanca ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
High Field ◽  
Chemical Constituents ◽  
Ethanol Extract ◽  
Raw 264.7 Cells ◽  
Raw 264.7 ◽  
Murine Macrophage ◽  
New Metabolites

In addition to the trichilianones A–D recently reported from Trichilia adolfi, a continuing investigation of the chemical constituents of the ethanol extract of the bark of this medicinal plant yielded the five new limonoids 1–5. They are characterized by having four fused rings and are new examples of prieurianin-type limonoids, having a ε-lactone which in 4 and 5 is α, β- unsaturated. The structures of the isolated metabolites were determined by high field NMR spectroscopy and HR mass spectrometry. The new metabolites were shown to have the ε-lactone fused with a tetrahydrofuran ring which is connected to an oxidized hexane ring joined with a cyclo-pentanone having a 3-furanyl substituent. As the crude extract possesses antileishmanial activity, the compounds were assayed for cytotoxic and antiparasitic activities in vitro in murine macrophage cells (raw 264.7 cells) and in Leishmania amazoniensis as well as L. braziliensis promastigotes. Metabolites 1–3 and 5 showed moderate cytotoxicity (between 30–94 µg/mL) but are not responsible for the antileishmanial effect of the extract.

High field FT-ICR mass spectrometry data sets enlighten qualitative DOM alteration in lake sediment porewater profiles

2017 ◽  
Vol 108 ◽  
pp. 51-60 ◽  
Author(s):  
Peter Herzsprung ◽  
Wolf von Tümpling ◽  
Katrin Wendt-Potthoff ◽  
Norbert Hertkorn ◽  
Mourad Harir ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Lake Sediment ◽  
High Field ◽  
Mass Spectrometry Data ◽  
Data Sets ◽  
Ft Icr

scholarly journals TG/DTG, FT-ICR Mass Spectrometry, and NMR Spectroscopy Study of Heavy Fuel Oil

2015 ◽  
Vol 29 (12) ◽  
pp. 7825-7835 ◽  
Author(s):  
A. M. Elbaz ◽  
Abdul Gani ◽  
Nadim Hourani ◽  
Abdul-Hamid Emwas ◽  
S. Mani Sarathy ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Fuel Oil ◽  
Spectroscopy Study ◽  
Heavy Fuel Oil ◽  
Ft Icr

scholarly journals High field FT-ICR mass spectrometry for molecular characterization of snow board from Moscow regions

2016 ◽  
Vol 557-558 ◽  
pp. 12-19 ◽  
Author(s):  
Dmitry M. Mazur ◽  
Mourad Harir ◽  
Philippe Schmitt-Kopplin ◽  
Olga V. Polyakova ◽  
Albert T. Lebedev
Keyword(s):  
Mass Spectrometry ◽  
Molecular Characterization ◽  
High Field ◽  
Ft Icr

scholarly journals Hydrothermal liquefaction oil and hydrotreated product from pine feedstock characterized by heteronuclear two-dimensional NMR spectroscopy and FT-ICR mass spectrometry

Fuel ◽  
2014 ◽  
Vol 137 ◽  
pp. 60-69 ◽  
Author(s):  
Nilusha Sudasinghe ◽  
John R. Cort ◽  
Richard Hallen ◽  
Mariefel Olarte ◽  
Andrew Schmidt ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Hydrothermal Liquefaction ◽  
Two Dimensional ◽  
Ft Icr

scholarly journals Statistical Correlations between NMR Spectroscopy and Direct Infusion FT-ICR Mass Spectrometry Aid Annotation of Unknowns in Metabolomics

2016 ◽  
Vol 88 (5) ◽  
pp. 2583-2589 ◽  
Author(s):  
Jie Hao ◽  
Manuel Liebeke ◽  
Ulf Sommer ◽  
Mark R. Viant ◽  
Jacob G. Bundy ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Direct Infusion ◽  
Statistical Correlations ◽  
Ft Icr

scholarly journals Characterization of deasphalted heavy fuel oil using APPI (+) FT-ICR mass spectrometry and NMR spectroscopy

Fuel ◽  
2019 ◽  
Vol 253 ◽  
pp. 950-963 ◽  
Author(s):  
Abdul Gani Abdul Jameel ◽  
Abdulrahman Khateeb ◽  
Ayman M. Elbaz ◽  
Abdul-Hamid Emwas ◽  
Wen Zhang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Fuel Oil ◽  
Heavy Fuel Oil ◽  
Ft Icr

Laserspray and Matrix-Assisted Ionization Inlet Coupled to High-Field FT-ICR Mass Spectrometry for Peptide and Protein Analysis

2013 ◽  
Vol 24 (3) ◽  
pp. 320-328 ◽  
Author(s):  
Leonard Nyadong ◽  
Ellen D. Inutan ◽  
Xu Wang ◽  
Christopher L. Hendrickson ◽  
Sarah Trimpin ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Field ◽  
Protein Analysis ◽  
Ft Icr

Synthesis and Caracterization of some New 1H-3-aryl-7-etoxycarbonyl-6-methyl-pyrazolo[5,1-c][1,2,4]triazoles

2008 ◽  
Vol 59 (1) ◽  
pp. 41-44
Author(s):  
Maria-Daniela Sofei ◽  
Maria Ilici ◽  
Valentin Badea ◽  
Carol Csunderlik ◽  
Vasile-Nicolae Bercean
Keyword(s):  
Mass Spectrometry ◽  
Acetic Acid ◽  
Nmr Spectroscopy ◽  
Sodium Acetate ◽  
Glacial Acetic Acid ◽  
Ir And Nmr Spectroscopy

The synthesis of 1H-3-aryl-7-ethoxycarbonyl-6-methyl-pyrazolo[5,1-c][1,2,4]triazoles (2) was carried out by cyclization of 1H-5-arylidenehydrazino-4-ethoxycarbonyl-3-methyl-pyrazoles (1) in the presence of bromine using glacial acetic acid as solvent and sodium acetate as base. The new nine obtained compounds were characterized by IR and NMR spectroscopy and mass spectrometry.

Sign in / Sign up

Export Citation Format

Share Document