FIELD: chemistry.
SUBSTANCE: hydroxyapatite sample is irradiated with X-ray, gamma or electron beams, followed by recording the EPR spectrum resulting from exposure of paramagnetic centres on a certified EPR spectrometre. Spectral characteristics the observed EPR spectrum (number of observed lines and their position) are calculated while monitoring measurement error and comparing the obtained spectral characteristics with known spectral characteristics of nitrogen radicals in (poly)crystalline compounds.
EFFECT: possibility of qualitative and quantitative analysis of nitrogen compounds in substances with the structure of hydroxyapatites.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DETERMINING POSITION OF IMPURITIES OF NITRATE COMPOUNDS IN HYDROXYAPATITE | 2014 |
|
RU2554288C1 |
| METHOD OF DETECTING PARAMAGNETIC MANGANESE COMPLEXES AS ATHEROSCLEROSIS MARKERS | 2011 |
|
RU2468368C1 |
