The state primary standard of the unit of the number of paramagnetic centers: yesterday, today, tomorrow

A.S. Leskov

Al’manac of Modern Metrology № 1 (17) 2019, pages 35–43

The work presents the method of electron paramagnetic resonance, possibilities of EPR spectroscopy, its demand in a number of areas of science. The State primary standard for the unit of the number of paramagnetic centers (NPC) of GET 83-2017 is described, the history of its development and the prospects for further development.

Key words: paramagnetic resonance, EPR spectroscopy, EPR method, paramagnetic center, State primary standard.

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