Varian E-109 EPR Spectrometer

Special Features:

Field-frequency locks; photomodulation from dc to 5 kHz; saturation transfer spectroscopy; excellent sensitivity; loop-gap resonators.

Applications:

Electron Paramagnetic Resonance (EPR) of free radicals in solution; EPR of metal complexes in frozen solution; photoexcited paramagnetic states; spin-label studies; spin-label studies of cellular membrane fluidity and oxygen uptake.