Research Article
Electron Paramagnetic Resonance Examination of Free Radical Formation in Salicylic Acid and Urea Exposed to UV Irradiation
Figure 8
The effect of microwave power () linewidths () of the EPR spectra of UV irradiated urea during (a) 15 minutes, (b) 30 minutes, (c) 45 minutes, and (d) 60 minutes. : microwave power used during the measurement and : total microwave power produced by klystron (70 mW).
(a) |
(b) |
(c) |
(d) |