Spectrum of the hydroxyl radical

Light Spectrum of Compact Fluorescent Lamps in Iranian Market and Possibility of Hydroxyl Radical Production

Background and purpose: Despite growing use of energy-saving lamps or compact fluorescent lamps (CFLs), there are concerns about ultraviolet radiation in their output. In this study, the output of CFLs available in Iranian market in the range of infrared, visible, and ultraviolet were measured and the possibility of hydroxyl radical production by their radiation was evaluated. Materials and me...

Constraining the concentration of the hydroxyl radical

Atmospheric Chemistry and Physics Discussions This discussion paper is/has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP if available. Abstract The hydroxyl radical (OH) is an important oxidant in the troposphere due to its high reactivity and relative abundance. Measuring the concentration of OH in situ, however ...

Anomalous Λ-doubling in the infrared spectrum of the hydroxyl radical in helium nanodroplets.

The X(2)Π3/2 hydroxyl (OH) radical has been isolated in superfluid (4)He nanodroplets and probed with infrared laser depletion spectroscopy. From an analysis of the Stark spectrum of the Q(3/2) transition, the Λ-doublet splittings are determined to be 0.198(3) and 0.369(2) cm(-1) in the ground and first excited vibrational states, respectively. These splittings are 3.6 and 7.2 times larger than...

Hydroxyl radical - Wikipedia, the free encyclopedia

Serum Hydroxyl Radical Scavenging Capacity as Quantified with Iron-Free Hydroxyl Radical Source

We have developed a simple ESR spin trapping based method for hydroxyl (OH) radical scavenging-capacity determination, using iron-free OH radical source. Instead of the widely used Fenton reaction, a short (typically 5 seconds) in situ UV-photolysis of a dilute hydrogen peroxide aqueous solution was employed to generate reproducible amounts of OH radicals. ESR spin trapping was applied to quant...