Search results for "Chemical Dissociation"

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Electric field enhanced water dissociation at the bipolar membrane junction from ac impedance spectra measurements

1998

Abstract Preliminary experimental results of the ac impedance spectra of a bipolar ion-exchange membrane are reported and interpreted on the basis of a previous theoretical model based on the Nernst–Planck/Poisson equations. It is shown that the experiments can provide valuable electrochemical information about the bipolar junction structure and the electric-field enhanced water dissociation phenomenon that occurs at this junction, although the high number of unknown parameters involved makes it difficult to obtain accurate values for the parameters characteristic of this phenomenon.

Chemical dissociationChemistryGeneral Chemical EngineeringAnalytical chemistryElectrochemistryMolecular physicsDissociation (chemistry)Analytical Chemistrysymbols.namesakeMembraneElectric fieldAc impedance spectraElectrochemistrysymbolsNernst equationElectrical impedanceJournal of Electroanalytical Chemistry
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Odd haemoglobins in odd-toed ungulates: Impact of selected haemoglobin characteristics of the white rhinoceros (Ceratotherium simum) on the monitorin…

2019

Background Due to the current poaching crisis in Africa, increasing numbers of white rhinoceroses (Ceratotherium simum) require opioid immobilisation for medical interventions or management procedures. Alarmingly, the results of both blood gas analysis and pulse oximetry regularly indicate severe hypoxaemia. Yet, the recovery of the animals is uneventful. Thus, neither of the techniques seems to represent the real oxygenation level. We hypothesized that unusual haemoglobin characteristics of this species interfere with the techniques developed and calibrated for the use in human patients. Methods Haemoglobin was isolated from blood samples of four adult, white rhinoceroses. Oxygen dissociat…

PhysiologyOxygenMethemoglobinAnalytical Chemistry0403 veterinary scienceHemoglobins0302 clinical medicineHigh oxygenMedicine and Health SciencesOximetryMammalsAnalgesicsMultidisciplinarybiologymedicine.diagnostic_testCeratotherium simumApplied MathematicsSimulation and ModelingQChemical ReactionsREukaryotaDrugs04 agricultural and veterinary sciencesHydrogen-Ion ConcentrationBody FluidsAnalgesics OpioidChemistryBloodSpectrophotometryPhysical SciencesVertebratesMedicineAnatomyAlgorithmsResearch ArticleChemical ElementsChemical Dissociation040301 veterinary sciencesAnimal TypesScienceEquineschemistry.chemical_elementRhinocerosResearch and Analysis MethodsAbsorbance03 medical and health sciencesChemical AnalysismedicineAnimalsHumansPain ManagementGas AnalysisDomestic AnimalsHorsesPerissodactylaPharmacologyChromatographyOrganismsBiology and Life SciencesOxygenationbiology.organism_classificationOxygenOpioidsPulse oximetry030228 respiratory systemchemistryAfricaAmniotesBlood Gas AnalysisZoologyMathematicsPLoS ONE
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