Results 231 to 240 of about 7,759,429 (252)
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The Journal of Physical Chemistry A, 2003
The electric field dependence of the mobilities of gas-phase protonated monomers [(MH+(H2O)n] and proton-bound dimers [M2H+(H2O)n] of organophosphorus compounds was determined at E/N values between 0 and 140 Td at ambient pressure in air with moisture between 0.1 and 15 000 ppm.
N, Krylova +3 more
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The electric field dependence of the mobilities of gas-phase protonated monomers [(MH+(H2O)n] and proton-bound dimers [M2H+(H2O)n] of organophosphorus compounds was determined at E/N values between 0 and 140 Td at ambient pressure in air with moisture between 0.1 and 15 000 ppm.
N, Krylova +3 more
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Russian Journal of Physical Chemistry A, 2015
Ion mobility spectra were recorded for linear aliphatic ketones with three to nine carbon atoms. Two most intense peaks were found to be the peaks of the monomer and dimer and used to calculate the reduced ion mobilities and the scattering (collision) cross sections (by the Mason-Schamp equation).
E. V. Lantsuzskaya +2 more
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Ion mobility spectra were recorded for linear aliphatic ketones with three to nine carbon atoms. Two most intense peaks were found to be the peaks of the monomer and dimer and used to calculate the reduced ion mobilities and the scattering (collision) cross sections (by the Mason-Schamp equation).
E. V. Lantsuzskaya +2 more
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The Journal of Physical Chemistry A, 2017
Structural assignments of gas phase chromium oxide cluster anions, CrmOn- (m = 1-7), have been achieved by comparison between experimental collision cross sections measured by ion mobility mass spectrometry and theoretical collision cross sections of optimized structures by quantum chemical calculations. In the mass spectrum, significant magic behavior
Toshiaki Nagata +4 more
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Structural assignments of gas phase chromium oxide cluster anions, CrmOn- (m = 1-7), have been achieved by comparison between experimental collision cross sections measured by ion mobility mass spectrometry and theoretical collision cross sections of optimized structures by quantum chemical calculations. In the mass spectrum, significant magic behavior
Toshiaki Nagata +4 more
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Analytical Chemistry, 2013
The minimum structural unit of chromatin is the nucleosome core particle (NCP), consisting of 146 bp of DNA wrapped around a histone octamer, which itself contains two H2A/H2B dimers and one (H3/H4)2 tetramer. These multimers possess functionally important tail regions that are intrinsically disordered.
Kazumi, Saikusa +9 more
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The minimum structural unit of chromatin is the nucleosome core particle (NCP), consisting of 146 bp of DNA wrapped around a histone octamer, which itself contains two H2A/H2B dimers and one (H3/H4)2 tetramer. These multimers possess functionally important tail regions that are intrinsically disordered.
Kazumi, Saikusa +9 more
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Phys. Chem. Chem. Phys., 2011
This report describes the rapid characterization of positional and structural carbohydrate isomers based on structural separations provided by ion mobility-mass spectrometry (IM-MS). Many of the diseases associated with glycoprotein variation can be more effectively treated with earlier detection substantiating the need for high-throughput ...
Larissa S, Fenn, John A, McLean
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This report describes the rapid characterization of positional and structural carbohydrate isomers based on structural separations provided by ion mobility-mass spectrometry (IM-MS). Many of the diseases associated with glycoprotein variation can be more effectively treated with earlier detection substantiating the need for high-throughput ...
Larissa S, Fenn, John A, McLean
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Analytical Chemistry, 2013
The coupling of electrospray ionization (ESI) with ion mobility-mass spectrometry (IM-MS) allows structural studies on biological macromolecules in a solvent-free environment. Collision cross sections (CCSs) measured by IM-MS provide a measure of analyte size. For native proteins and their complexes, many structural features can be preserved in the gas
Siavash, Vahidi +2 more
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The coupling of electrospray ionization (ESI) with ion mobility-mass spectrometry (IM-MS) allows structural studies on biological macromolecules in a solvent-free environment. Collision cross sections (CCSs) measured by IM-MS provide a measure of analyte size. For native proteins and their complexes, many structural features can be preserved in the gas
Siavash, Vahidi +2 more
openaire +2 more sources
Rapid Communications in Mass Spectrometry
ABSTRACT Rationale Dimethylbipyridine (DMDP) serves as a versatile industrial intermediate, with methyl substitutions at distinct positions tailored for varied applications, including the synthesis of DNA reagents and proton receptors.
Xiaopeng Peng +6 more
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ABSTRACT Rationale Dimethylbipyridine (DMDP) serves as a versatile industrial intermediate, with methyl substitutions at distinct positions tailored for varied applications, including the synthesis of DNA reagents and proton receptors.
Xiaopeng Peng +6 more
openaire +2 more sources
Exploring gas-phase protein conformations by ion mobility-mass spectrometry
2010Analysis and characterisation of biomolecules using mass spectrometry has advanced over the past decade due to improvements in instrument design and capability; relevant use of complementary techniques; and available experimental and in silico data for comparison with cutting-edge research.
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