The usual resonance curve. Cell with gold electrodes and polarization 80 mV, Temperature : 22°C, L- glutamic acid 38 mg/ml, pH 2.89, B: 40 μT, Bo : 40 nT, Sweep time: 100 sec, Total data current recorded :100 sec, Initial current: – 60 nA, Final current : – 10 nA, Scan rate :100 point/sec, Peak resonance frequency 3.966 Hz. The resonance peak with maximum near the cyclotron frequency of about 4.0 Hz. The abscissa: the scanning of frequency of alternating magnetic field. The ordinate: the current through the amino acid aqueous solution.