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. 2012 Jun 3;43(1):129–138. doi: 10.1007/s00723-012-0362-5

Fig. 1.

Fig. 1

Enhancement ε of 1H NMR signals of bulk water as a function of microwave irradiation time t mw for different Frémy’s salt concentrations at 0.34 T fitted according to Eq. (5). The inset shows the pulse sequence applied in all DNP experiments