Search results for "Valeric acid"

showing 3 items of 3 documents

Gas-liquid chromatographic analyses

1983

Abstract The gas chromatography of mixtures of n -alkyl acetates (CH 3 COOR, R = C 1 —C 8 ) and methyl esters of aliphatic n -carboxylic acids (R′COOCH 3 , R′ = C 1 —C 8 ) and certain of their monochlorinated derivatives has been studied on Carbowax 20M and SE-30 glass capillary columns under the same operating conditions. The separation of the isomeric monochlorinated esters was complete on Carbowax 20M, whereas on SE-30 the peaks of 6- and 7-chlorooctyl acetates and methyl (ω − 1)- and (ω − 2)-chlorooctanoates and -nonanoates partly overlapped. The complete separation of the mixtures could not be achieved, however, on Carbowax 20M, in spite of the use of various operating conditions. The …

Aqueous normal-phase chromatographyValeric acidCapillary actionChlorine atomLiquid phasechemistry.chemical_elementAlcoholBiochemistryIsothermal processAnalytical ChemistryHomologous serieschemistry.chemical_compoundChain (algebraic topology)Capillary columnChlorineOrganic chemistryMethyleneChlorine substituentQuartzAlkylchemistry.chemical_classificationPrimary (chemistry)ChromatographyElutionChemistrySubstitution (logic)Organic ChemistryButanoic AcidsReversed-phase chromatographyGeneral MedicineCapillary gas chromatographyChromatographic separationAcyl chainembryonic structuresHalogenNitrocardiovascular systemPolarKovats retention indexGas chromatographyChromatography columnRetention timeGas liquid chromatographicJournal of Chromatography A
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Impact of gadolinium on the structure and magnetic properties of nanocrystalline powders of iron oxides produced by the extraction-pyrolytic method

2020

The work has been done in frame of the TransFerr project. It has received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No. 778070. This research was also supported by Latvian Research Council project lzp-2018/1-0214. A.I.P. appreciates support from the Estonian Research Council grant (PUT PRG619).

Gadolinium impactMaterials scienceiron oxidesValeric acidGadoliniumIron oxidechemistry.chemical_element02 engineering and technologyThermal treatmentCoercivitymagnetization010402 general chemistryValerateExtraction-pyrolitic methodIron oxidesMagnetizationlcsh:Technology7. Clean energy01 natural sciencesArticlechemistry.chemical_compoundnanostructures:NATURAL SCIENCES:Physics [Research Subject Categories]extraction–pyrolitic methodGeneral Materials Sciencecoercivitylcsh:Microscopylcsh:QC120-168.85chemistry.chemical_classificationlcsh:QH201-278.5lcsh:TExtraction (chemistry)gadolinium impact021001 nanoscience & nanotechnologyNanocrystalline materialNanostructures0104 chemical sciencesiron oxides ; nanostructures ; gadolinium impact ; extraction–pyrolitic method ; magnetization ; coercivitychemistrylcsh:TA1-2040Magnetic nanoparticleslcsh:Descriptive and experimental mechanicslcsh:Electrical engineering. Electronics. Nuclear engineeringlcsh:Engineering (General). Civil engineering (General)0210 nano-technologylcsh:TK1-9971Nuclear chemistry
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Newborn screening and disease variants predict neurological outcome in isovaleric aciduria.

2021

Isovaleric aciduria (IVA), a metabolic disease with severe (classic IVA) or attenuated phenotype (mild IVA), is included in newborn screening (NBS) programs worldwide. The long-term clinical benefit of screened individuals, however, is still rarely investigated. A national, prospective, observational, multi-center study of individuals with confirmed IVA identified by NBS between 1998 and 2018 was conducted. Long-term clinical outcomes of 94 individuals with IVA were evaluated, representing 73.4% (for classic IVA: 92.3%) of the German NBS cohort. In classic IVA (N = 24), NBS prevented untimely death except in one individual with lethal neonatal sepsis (3.8%) but did not completely prevent si…

MalePediatricsmedicine.medical_specialtyAdolescentNeurocognitive DisordersDisease03 medical and health sciencesYoung AdultCognitionNeonatal ScreeningMaintenance therapyGermanyGeneticsmedicineHumansProspective StudiesMetabolic diseaseChildAmino Acid Metabolism Inborn ErrorsGenetics (clinical)030304 developmental biology0303 health sciencesNewborn screeningNeonatal sepsisIsovaleryl-CoA Dehydrogenasebusiness.industry030305 genetics & heredityInfant NewbornInfantmedicine.diseasePrognosisIsovaleric AcidemiaPhenotypeChild PreschoolCohortFemalesense organsbusinessNeurocognitiveJournal of inherited metabolic diseaseREFERENCES
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