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Article
The particular characteristics of the active sites of MoS2, WS2 catalysts in thiophene hydrodesulfurization
It was reported in earlier studies that a linear correlation existed between the total sulfur exchange capacity and thiophene hydrodesulfurization activity of different, alumina- or silica-supported molybdenum...
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Article
The Conversion of Butadiene on Thiophene Hydrodesulfurization Catalysts
The production of thiophene via heterocyclization of butadiene with sulfur (hcycl.) has been studied in the interaction of butadiene with sulfided, alumina supported nickel (Ni6), molybdena–alumina (Mo6) and n...
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Article
Determination of endogenous formaldehyde level in human blood and urine by dimedone-14C radiometric method
Radiometric method was developed for the analysis of endogenous formaldehyde in human blood and urine using dimedone-14C reagent. The method based on that dimedone /5,5-dimethyl-cyclohexane-1, 3-dione/ can very e...
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Article
Radiometric titration based on colloidal and slow precipitate formation
Fluoride ions and, in about 0.005M concentration, tungstate ions form gelatinous precipitates, poorly soluble in water, with calcium ions. The radiometric determinations of the above ions are based on these react...
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Article
Investigation and radiometric determination of saturated and unsaturated aliphatic monocarboxylic acids and aromatic dicarboxylic acids
Investigations have been carried out on the precipitation of calcium salts of saturated and unsaturated aliphatic monocarboxylic acids and of aromatic dicarboxylic acids. The optimum ethanol/water solvent rati...
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Article
Investigation and radiometric determination of saturated and unsaturated aliphatic dicarboxylic acids
Radiometric determination of saturated and unsaturated aliphatic dicarboxylic acids has been developed using a precipitation reaction. The influence of the conditions of precipitation, the composition of the c...
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Article
Anwendung von Mikromethoden in der organischen Isotopengasanalyse
Verfahren zur radiochemischen Analyse organischer Substanzen, die mit14C, Tritium bzw.35S markiert sind, wurden angegeben. Diese ähnlich der organischen Mikroanalyse durchführbaren Methoden beruhen auf Messungen ...
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Article
Radiometric determination of 8-hydroxyquinoline and its derivatives with calcium chloride reagent solution labelled by45Ca
Radiometric titrations are reported based on the formation of poorly soluble chelate complexes of 8-hydroxyquinoline and its derivatives with calcium ions. Calcium chloride reagent solution labelled with45Ca was ...
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Article
Titrating apparatus for the detection of soft β-emitting isotopes
The measuring devices reported in the literature allow only radiometric titrations indicated by hard β or γ-radiating isotopes. The authors developed an apparatus also suitable for the detection of soft β-emit...
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Article
Über die substöchiometrische Extraktion und Bestimmbarkeit von Quecksilberionen in Form ihres Bromidkomplexes
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Article
Schnellverfahren zur Gasanalyse des Radiokohlenstoffes unter Atmosphärendruck
Zur Aktivitätsmessung von14C-markierten Substanzen wurde ein Verfahren ausgearbeitet, das die Durchführung der Messungen ohne die Verwendung eines Vakuumapparates mittels einer einfachen Vorrichtung ermöglicht. D...