The application of coupled techniques to the same sample when sampling for the second technique is discontinuous, e.g. discontinuous thermal analysis
and gas chromatography
, when discrete portions of evolved volatile(s) are collected from the sample situation in the instrument used for the first technique.
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. doi:10.1351/goldbook