title: Comparison of colourimetric methods for ammonia determination.
abstract: The precision of the Berthelot and Nessler methods of ammonia determination are compared at various ammonia concentrations. Recommendations are made regarding the most appropriate technique to use, dependent on the range of ammonia concentration expected. The effect of microdiffusion separation on the precision of ammonia determination is studied, together with an evaluation of a water soluble lid sealant and of the effect of a model amine contaminant.
authors.affiliation: Department of Pharmacy, School of Health and Life Sciences, Leicester Polytechnic, U.K.
authors.forename: A R
authors.initials: AR
authors.lastname: Barnes
authors.forename: J K
authors.initials: JK
authors.lastname: Sugden
mesh_terms: D000641:Ammonia / Q000032:analysis* / Q000737:chemistry; D003124:Colorimetry; D006801:Humans; D007231:Infant, Newborn
chemical_list: D000641:Ammonia