G - Physics – 01 – N
Patent
G - Physics
01
N
358/5
G01N 23/22 (2006.01)
Patent
CA 1121916
RADIOACTIVATION METHOD FOR SIMULTANEOUS DETERMINATION OF NITROGEN, PHOSPHORUS AND POTASSIUM CONTENT IN PLANTS AND FERTILIZERS Abstract of the Disclosure According to the invention, the radioactivation method for simultaneous determination of the nitrogen, phosphorus and potassium content in plants and fertilizers consists in exposing samples to be analyzed and standard samples to neutron irradiation and recording the spectra of the gamma radiation induced in said samples, whereupon the samples are laid aside for a period of time determined by the half-life of the interfering isotope. This is followed by again recor- ding the spectra of the samples being analyzed and of the standard samples and superposing the first and second spectra of the samples being analyzed and of the standard samples. These spectra are then shifted relative to each other along the energy axis, and the contents of the elements being ana- lyzed are determined by thus comparing the spectra of the samples being analyzed and of the standard samples.
325290
Kovtun Jury L.
Miroshnikova Nadezhda N.
Saveliev Igor B.
Sidorov Alexandr V.
Srapeniants Rigo A.
Swabey Ogilvy Renault
Vsesojuzny Nauchno-Issledovatelsky Institut Udobreny I. Agropoch
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