Vibrating Sample Magnetometer for Protein Research
1972; American Institute of Physics; Volume: 43; Issue: 5 Linguagem: Inglês
10.1063/1.1685752
ISSN1527-2400
AutoresAlfred G. Redfield, Charles Moleski,
Tópico(s)Spectroscopy and Quantum Chemical Studies
ResumoA simple magnetometer for use with weakly paramagnetic frozen solutions is described. It uses the same superconducting coil for generating the field and detecting the vibrating magnetization. A nearly translationally invariant sample holder and low frequency vibration of large amplitude are advantageous. In a sample volume of 0.7 ml, 2×10−7 moles of a species having a single g=2, s=½ spin produces a signal reproducibly different from that of pure water, when the temperature is varied from 77 to 2 K.
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