Record Display for the EPA National Library Catalog

RECORD NUMBER: 68 OF 415

OLS Field Name OLS Field Data
Main Title Automatic Determination of Ammonia Nitrogen in Mineral Compounds (Dosage Automatique de l'Azote Ammoniacal dans les Mineralisats).
Author Agneray., J. ;
CORP Author Environmental Protection Agency, Research Triangle Park, N.C. Translation Services Section.
Year Published 1961
Report Number EPA-TR-74-422;
Stock Number PB-252 715-T
Additional Subjects Colorimetric analysis ; Nitrogen inorganic compounds ; Minerals ; Laboratory equipment ; Chemical analysis ; Translations ; France ; Ammonium compounds ; Dialysis ; Buffers ; Technicon autoanalyzers
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-252 715-T Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 22p
Abstract
Of all the colorimetric methods proposed for the determination of ammonia nitrogen, the ones which use the Berthelot reaction are by far the preferred methods. The great sensitivity of this reaction to contaminations due to atmospheric ammonia is the only relevant criticism that can be made about it. The use of the Technicon analyzer is an effective means of protection against such contamination. The authors tried to adapt this reaction to the automatic determination of the ammonia nitrogen.