0000000000378876

AUTHOR

Timo Kekäläinen

showing 2 related works from this author

Carbon Budget and Molecular Structure of Natural Organic Matter in Bank Infiltrated Groundwater

2021

Groundwater : : journal of the Association of Ground-Water Scientists and Engineers, a division of the National Ground Water Association (2021). doi:10.1111/gwat.13087

liuennut orgaaninen hiilimassaspektrometria550Water table0208 environmental biotechnologychemistry.chemical_elementAquiferFresh Watertekopohjavesi02 engineering and technologyjärvetVadose zoneddc:550Organic matterComputers in Earth SciencesGroundwaterWater Science and TechnologyTotal organic carbonchemistry.chemical_classificationmanaged aquifer rechargegeographypohjavesivedenpuhdistusgeography.geographical_feature_categoryMolecular StructureGroundwater rechargedissolved organic matterpohjavesialueetCarbon020801 environmental engineeringlake-groundwater interactionmolecular compositionpintavesichemistryEnvironmental chemistryEnvironmental scienceorgaaninen ainesSeasonsCarbonGroundwaterWater Pollutants Chemical
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Size- and Structure-Selective Noncovalent Recognition of Saccharides by Tetraethyl and Tetraphenyl Resorcinarenes in the Gas Phase

2008

The noncovalent complexation of tetraethyl and tetraphenyl resorcinarenes with mono-, di-, and oligosaccharides was studied with negative-polarization electrospray ionization quadrupole ion trap and electrospray ionization Fourier-transform ion cyclotron resonance mass-spectrometric analysis. The saccharides formed 1:1 complexes with deprotonated resorcinarenes, which exhibited clear size and structure selectivity in their complexation. In the case of the monosaccharides, hexoses formed much more abundant and kinetically stable complexes than pentoses or deoxyhexoses. A comparison of the mono-, di-, and oligosaccharides revealed that both the relative abundance and stability of the complexe…

Models MolecularCellobiosePhenylalanineElectrospray ionizationCarbohydratesCrystallography X-RayMass spectrometryMass SpectrometryCatalysisSubstrate SpecificityDeprotonationPolymer chemistryCarbohydrate ConformationOrganic chemistryQuadrupole ion trapHost–guest chemistrychemistry.chemical_classificationOrganic ChemistryGeneral ChemistryOligosaccharideResorcinareneKineticschemistryGasesCalixarenesIon cyclotron resonanceChemistry - A European Journal
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