Determination of Absolute Concentrations by Gas‐Phase Electron Spin Resonance Spectroscopy

摘要

Absolute concentration measurements by ESR spectroscopy require the determination of integrated intensities. It is shown that the commonly employed first moment method can lead to serious errors when applied to Lorentzian lines. These errors result from neglecting the area in the wings of these lines. A general correction curve for modulation‐distorted lines is presented. The use of oxygen for the calibration of ESR spectrometers is discussed.