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The determination of urea in soil extracts and related samples - a review
journal contribution
posted on 2004-01-01, 00:00 authored by D Lambert, John SherwoodJohn Sherwood, Paul FrancisPaul FrancisAlthough the dominant methods for the determination of urea in clinical applications incorporate selective enzymatic hydrolysis of urea, the determination of urea in soil extracts is complicated by the presence of urease inhibitors. The spectrophotometric determination of urea with an acidic solution diacetyl monoxime and semicarbazide is a viable option but traditional manual procedures are time-consuming. New variations on these procedures, based on microplates or flow-injection analysis methodologies, allow a far greater number of samples to be analysed with high precision and sensitivity.
History
Journal
Australian journal of soil researchVolume
42Pagination
709 - 717Publisher
CSIRO PublishingLocation
Collingwood, Vic.ISSN
0004-9573eISSN
1446-568XLanguage
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2004, CSIROUsage metrics
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No categories selectedKeywords
diacetyl monoximeureasefertilisersmicroplateflow-injection analysisScience & TechnologyLife Sciences & BiomedicineSoil ScienceAgricultureLIQUID-CHROMATOGRAPHIC DETERMINATIONCOLORIMETRIC DETERMINATIONSPECTROPHOTOMETRIC DETERMINATIONFLOW-INJECTIONQUICK DETERMINATIONION CHROMATOGRAPHYREACTION-PRODUCTAMMONIUM IONNITROGEN
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