The Hydroxyl Radical is a Critical Intermediate in the Voltammetric Detection of Hydrogen Peroxide.
The Hydroxyl Radical is a Critical Intermediate in the Voltammetric Detection of Hydrogen Peroxide.
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DOI:
10.1021/jacs.5b13376
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发表时间:
2016-03-02
影响因子:
15
通讯作者:
Sombers LA
中科院分区:
文献类型:
--
作者:
Roberts JG;Voinov MA;Schmidt AC;Smirnova TI;Sombers LA
Cyclic voltammetry is a widely used and powerful tool for sensitively and selectively measuring hydrogen peroxide (H2O2). Herein, voltammetry was combined with electron paramagnetic resonance spectroscopy to identify and define the role of an oxygen-centered radical liberated during the oxidation of H2O2. The spin-trap reagents, 5,5-dimethyl-1-pyrroline N-oxide (DMPO) and 2-ethoxycarbonyl-2-methyl-3,4-dihydro-2H-pyrrole-1-oxide (EMPO), were employed. Spectra exhibit distinct hyperfine patterns that clearly identify the DMPO-OH• and EMPO-OH• adducts. Multiple linear regression analysis of voltammograms demonstrated that the hydroxyl radical is a principal contributor to the voltammetry of H2O2, as signal is attenuated when this species is trapped. These data incorporate a missing, fundamental element to our knowledge of the mechanisms that underlie H2O2 electrochemistry.
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DOI:
10.3109/10715769009145689
发表时间:
1990-01-01
期刊:
FREE RADICAL RESEARCH COMMUNICATIONS
影响因子:
--
作者:
BERNOFSKY, C;BANDARA, BMR;STRAUSS, SL
通讯作者:
STRAUSS, SL
DOI:
10.1039/jr9640003625
发表时间:
1964-01-01
期刊:
JOURNAL OF THE CHEMICAL SOCIETY
影响因子:
--
作者:
DIXON, WT;NORMAN, ROC;BULEY, AL
通讯作者:
BULEY, AL
影响因子:
2
作者:
Ranguelova, Kalina;Mason, Ronald P.
通讯作者:
Mason, Ronald P.
影响因子:
6.6
作者:
Hall, SB;Khudaish, EA;Hart, AL
通讯作者:
Hart, AL
影响因子:
4.2
作者:
Chang, Su-Youne;Jay, Taylor;Lee, Kendall H.
通讯作者:
Lee, Kendall H.