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Influence of Mass Transfer on Interaction Between Thermoanalytical and Mass Spectrometric Curves Measured in Combined Thermoanalyser-mass Spectrometer Systems by B. Roduit; J. Baldyga; M. Maciejewski; A. Baiker is a Materials Science article available to read on EtoBox.

What is Influence of Mass Transfer on Interaction Between Thermoanalytical and Mass Spectrometric Curves Measured in Combined Thermoanalyser-mass Spectrometer Systems about?

The convective and diffusional mass transfer occurring in combined thermoanalyser-mass spectrometer systems can cause significant deviation between measured thermoanalytical and mass spectrometric curves. Based on experimental studies of the decomposition of CaCO3, a model has been developed which allows to interrelate the thermoanalytical (DTG) and mass spectrometric curves and provides a criterion defining under which conditions (carrier gas-flow rate and diffusivity of evolved gas) the disguising mass-transfer influences can be neglected. The criterion relates the total residence time Ttot of the gas in the experimental system to the characteristic time tN of the gravimetrically recorded decomposition process and allows to quantify the agreement between the thermoanalytical and mass spectrometric curves. (~ 1997 Elsevier Science B.V.

Who reads Influence of Mass Transfer on Interaction Between Thermoanalytical and Mass Spectrometric Curves Measured in Combined Thermoanalyser-mass Spectrometer Systems?

Author

B. Roduit; J. Baldyga; M. Maciejewski; A. Baiker

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0040-6031)

Published

1997

Language

EN

Field

Materials Science (Physical Sciences)