Determination of oxygen in certain gases
| Autor: | Wanda Bradshaw, Louis Silverman |
|---|---|
| Rok vydání: | 1955 |
| Předmět: |
Argon
Hydrogen Inorganic chemistry Analytical chemistry chemistry.chemical_element Condensed Matter Physics Biochemistry Oxygen Nitrogen Surfaces Coatings and Films Analytical Chemistry chemistry.chemical_compound chemistry Reagent Carbon dioxide Environmental Chemistry Titration Instrumentation Spectroscopy Helium |
| Zdroj: | Analytica Chimica Acta. 12:526-541 |
| ISSN: | 0003-2670 |
| DOI: | 10.1016/s0003-2670(00)87876-9 |
| Popis: | An improved method is described for the determination of micro-amounts of oxygen gas in argon, carbon dioxide, helium, hydrogen and nitrogen by the Winkler. procedure. The technique is such that a mean standard deviation of ± 0.33 ppm oxygen with a reproducibility of ± 0.67 is obtained for gases varying in oxygen content from 1 to 30 ppm. The results are reproducible on a day-to-day basis. The reagent blank is equivalent to about 2.5 ppm with a deviation of 0.2 ppm. The method can be used for oxygen gas determination from 1 to 1.50 ppm. The accuracy of the method is ± 0.1 ppm for the lower range of oxygen concentrations. The method may also be extended to higher oxygen-containing gases, except that the oxygen determination is made by titration and smaller gas samples are used. |
| Databáze: | OpenAIRE |
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