The first purification and unequivocal characterization of the radical form of the carbon-centered quinone ketoxy radical adductElectronic supplementary information (ESI) available. See DOI: 10.1039/c3cc42732c

We found, unexpectedly, that the radical form of the carbon-centered quinone ketoxy radical adduct with a recently developed spin-trapping agent BMPO can not only be directly detected and identified using HPLC/high resolution MS, but can also be isolated and purified using semi-preparative HPLC, ena...

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Main Authors: Huang, Chun-Hua, Shan, Guo-Qiang, Mao, Li, Kalyanaraman, Balaraman, Qin, Hao, Ren, Fu-Rong, Zhu, Ben-Zhan
Format: Article
Language:English
Online Access:Get full text
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Summary:We found, unexpectedly, that the radical form of the carbon-centered quinone ketoxy radical adduct with a recently developed spin-trapping agent BMPO can not only be directly detected and identified using HPLC/high resolution MS, but can also be isolated and purified using semi-preparative HPLC, enabling direct observation of its clean 6-line ESR signal. The radical-form of the carbon-centered quinone-ketoxy radical spin-trapping adduct can be purified using semi-preparative/HPLC and unequivocally-identified using high-resolution MS and ESR.
ISSN:1359-7345
1364-548X
DOI:10.1039/c3cc42732c