Oxygen analysis

Vacuum fusion analysis (oxygen solubility in metal)... [Pg.31]

Vogt, J. R., and W. D. Ehmann An Automated Procedure for the Determination of Oxygen Using Fast Neutron Activation Analysis Oxygen in Stony Meteorites. Radiochim. Acta 4, 24 (1965). [Pg.86]

Key words Kinetic analysis, oxygen radicals, heterostmctures, n-type ZnO, p-type ZnO... [Pg.27]

Since the total of carbon and hydrogen is lOOV, within the limits of error of the analysis, oxygen (or any other element) must be absent. [Pg.69]

See SAMPLE DISSOLUTION FOR ELEMENTAL ANALYSIS Oxygen Flask Combustion... [Pg.3517]

In many cases, HPLC can replace TLC in this step. HPLC has the advantage that, during the analysis, oxygen-sensitive lipids are not exposed to air and autoxidation is limited. After the cleanup steps, samples are analyzed by GC or HPLC. Analysis of triglycerides often involves saponification before the HPLC analysis. Because samples of lipids may originate from a variety of different sources. [Pg.1378]

Oxygen Analysis Oxygen content in the silicon nitride powder is analyzed by LECO method. The oxygen in samples combines with carbon at high temperature to produce CO which is analyzed by infra-red detection. [Pg.37]

The selection of the primary ion source is guided by the sample composition and by the required lateral resolution of the analysis. Oxygen ions preferentially form positive secondary ions from elements with a low ionization energy, while cesium ions are chosen for the preferential production of negative secondary ions from species with a high electron affinity. The Ga+ ion source provides a high brilliant primary beam and an excellent lateral resolution. In contrast, El ion sources provide poor lateral resolution but easily operate in the pulsed mode when time-of-flight (TOF) mass analyzers are used. [Pg.848]

The usefulness of XPS for analysis of complex carbonaceous materials is illustrated well by the case of surface analysis (oxygen content and acidity) of carbon black waste materials from tire residues [146] here, XPS revealed both information about major functional groups with C-0, C=0, and 0-C=0 bonds and elemental identification [146]. [Pg.156]

Notes Fixed carbon/volatile matter from proximate analysis Volatile mattra/fixed carbon from proximate analysis ydrogen/carbon atomic ratio from ultimate analysis Oxygen/caibon atomic ratio from ultimate analysis ... [Pg.198]

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