Electrothermal atomic-absorption determination of silver in zinc and cadmium selenides
An atomic-absorption signal is dependent on the chemical forms of the test element and matrix in the solution as well as on the processes during electrothermal atomization. The authors have examined the absorption due to silver with a Saturn-2 spectrophotometer with such atomization; the authors used the 328.1 nm line (i = 10 mA, slit width 0.15, time-constant 0.6 sec). The presence of cadmium and zinc was monitored from the 326.1 and 213.8 nm lines respectively. The measurements were made in argon. The internal gas flow was turned off during the atomization. The graphite was used until there were sharp changes in the silver absorption due to change in the structure of the graphite and occurrence of the memory effect. The results from over 100 specimens of cadmium selenide films analyzed for silver showed that the results were in full agreement with the conditions for silver activation (time, temperature, and activator mass).
- Research Organization:
- Mendeleev Chemical-Engineering Institute, Moscow (USSR)
- OSTI ID:
- 7172317
- Journal Information:
- Ind. Lab. (Engl. Transl.); (United States), Vol. 53:4; Other Information: Translated from Zavod. Lab.; 53: No. 4, 28-30(Apr 1987)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CADMIUM SELENIDES
ABSORPTION SPECTROSCOPY
SILVER
ZINC SELENIDES
ABSORPTION SPECTRA
ACTIVATION ENERGY
ATOMIZATION
GRAPHITE
INTERFERING ELEMENTS
LINE WIDTHS
METALLURGICAL EFFECTS
MICROSTRUCTURE
PHASE STUDIES
POROSITY
SPECTROPHOTOMETRY
CADMIUM COMPOUNDS
CARBON
CHALCOGENIDES
CRYSTAL STRUCTURE
ELEMENTAL MINERALS
ELEMENTS
ENERGY
METALS
MINERALS
NONMETALS
SELENIDES
SELENIUM COMPOUNDS
SPECTRA
SPECTROSCOPY
TRANSITION ELEMENTS
ZINC COMPOUNDS
360602* - Other Materials- Structure & Phase Studies
400102 - Chemical & Spectral Procedures