Atomic spectroscopy for detection in thermal analysis

T. Kántor, L. Bezúr, J. Sztatisz, E. Pungor

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

An atomic absorption spectrophotometer is coupled to a conventional thermoanalytical quartz furnace as used for TG and DTG to detect the thermally evolved products. In this combined system, the dry aerosol (smoke) obtained by cooling the vapour evolved is transported from the furnace to the flame for metal-specific atomic absorption detection. The particular design of the furnace outlet promotes the formation of stable aerosols. Optimum experimental conditions were determined, using zinc chloride solution, by varying the specimen mass, the heating rate and the flow rate of the furnace gas at a linear temperature program. The absorbance vs. temperature curves obtained with this method for various zinc compounds are compared with the corresponding DTG curves. The applicability of the technique for studying heterogeneous reactions with carbon tetrachloride and hexane vapours is presented. The utilization of an atomic absorption spectrophotometer equipped with a quartz cuvette for detecting the thermal evolution of mercury vapours is described, as well as detection potentials by molecular absorption (for NO and NH3) and light scattering (for smoke evolved from organic matter). The results obtained with the suggested methods may, in some respects, valuably complement the results achieved with DTG and with flame ionization detection.

Original languageEnglish
Pages (from-to)179-197
Number of pages19
JournalJournal of Thermal Analysis
Volume22
Issue number2
DOIs
Publication statusPublished - Dec 1981

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Atomic spectroscopy
Thermoanalysis
furnaces
thermal analysis
Furnaces
Quartz
Spectrophotometers
Vapors
Aerosols
Smoke
smoke
Zinc Compounds
spectrophotometers
Zinc compounds
Gas furnaces
spectroscopy
Zinc chloride
aerosols
Carbon tetrachloride
quartz

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Atomic spectroscopy for detection in thermal analysis. / Kántor, T.; Bezúr, L.; Sztatisz, J.; Pungor, E.

In: Journal of Thermal Analysis, Vol. 22, No. 2, 12.1981, p. 179-197.

Research output: Contribution to journalArticle

Kántor, T. ; Bezúr, L. ; Sztatisz, J. ; Pungor, E. / Atomic spectroscopy for detection in thermal analysis. In: Journal of Thermal Analysis. 1981 ; Vol. 22, No. 2. pp. 179-197.
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