A term used to describe methods wherein a reagent is continuously fed into a flowing analyte stream and the temperature difference is measured before and after a reactor (mixing chamber). Alternatively, the temperature may be measured in a differential manner between a reference and a reactor chamber. The analyte concentration is directly proportional to the measured temperature difference. Synonymous with continuous flow enthalpimetric analysis.
PAC, 1994, 66, 2487. 'Nomenclature of thermometric and enthalpimetric methods in chemical analysis (IUPAC Recommendations 1994)' on page 2491 (https://doi.org/10.1351/pac199466122487)