Discovery of Bisulfite and an Uncharacterized Carbon-Centered Radical Systems in Non-Dry-Hopped and Dry-Hopped Beers Using a Different Spin Trap, 5, 5-Dimethyl-1-Pyrroline-N-Oxide, and a New Electron Paramagnetic Resonance Method

2021 ◽  
pp. 1-23
Author(s):  
Robert T. Foster ◽  
Kalina Ranguelova
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Spin Trap ◽  
Resonance Method ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic Resonance Method ◽  
Carbon Centered Radical ◽  
Electron Paramagnetic

Research on Alumina and Other Nanopowders by Electron Paramagnetic Resonance Method

2010 ◽  
Vol 5 (1) ◽  
pp. 97-101
Author(s):  
Sergey P. Bardakhanov ◽  
Aleksandr M. Volodin ◽  
Konstantin V. Zobov ◽  
Roman M. Kenzhin ◽  
Vladimir I. Lysenko
Keyword(s):  
Experimental Study ◽  
Electron Paramagnetic Resonance ◽  
Resonance Method ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic Resonance Method ◽  
Electron Paramagnetic ◽  
Surface Donor

The paper is devoted to experimental study of alumina and other nanopowders by electron paramagnetic resonance method. The experiments have showed the surface donor centers for ZrO2 + MgO (9 % mol.) and Al2O3 samples. The influence of Fe(3+) dirt was determined in glacial Al2O3 liquid melt, but Al2O3 nanopowder was free from this impurity. The Cr(5+) dirt were found in ZrO2 + MgO (9 % mol.) nanopowder sample.

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