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. 2007 Feb 26;92(10):3686–3695. doi: 10.1529/biophysj.106.097899

FIGURE 5.

FIGURE 5

Low-field region of echo-detected 130-GHz EPR spectrum from 5-doxyl-SA in isopropanol (solid line) is superimposed with simulated spectra (Voight function) corresponding to nonhydrogen-bonded (dash-dot line) and hydrogen-bonded (dash line) components. Residual, the difference between the experimental spectrum and the two simulated components, is shown at the bottom as a solid line.