Enthalpimetric flow analysis of urea using immobilized urease

Richard K Owusu, Martin J Trewhella, Arthur Finch

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


An enthalpimetric determination of urea using immobilized urease in a flow system is described. Sensitivity of analysis is related to the mole reaction enthalpy (dHR). This is estimated as (61 ±3 kJ mol−1 and 20 ±1 kJ mol−1 in sodium phosphate and tris-HCl buffer respectively. Factors affecting the minimum amount of urea detected, linearity range and rate of analysis are discussed.
Original languageEnglish
Pages (from-to)1-7
JournalThermochimica Acta
Publication statusPublished (in print/issue) - 15 Feb 1987


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