Figure 1From: Detection of reactive oxygen species in isolated, perfused lungs by electron spin resonance spectroscopyThe effect of the iron chelating agent deferoxamine (DFO) on CP•nitroxide signal intensity in vitro. (A) Typical ESR spectrum of CP• nitroxide resulting from the reaction of the hydroxylamine spin probe CPH with ROS. The height of the first field component of the triple-line spectrum was used for quantification of signal intensity. (B) In-vitro incubation of CPH (1 mM) in Krebs-Henseleit buffer. Signal intensity is given in arbitrary units (AU). Data are shown for CPH oxidation in the absence (-DFO) or in the presence of either 20 μM or 2 mM deferoxamine (DFO). Asterisks indicate significant differences when compared to the-DFO group.Back to article page