https://www.selleckchem.com/pr....oducts/ecc5004-azd50
The disproportionation reaction of O2- in presence of Ca2+ was demonstrated via mass spectrometry. Finally, the ORR mediated by 2,5-di-tert-1,4-benzoquinone (DBBQ) was investigated by differential electrochemical mass spectrometry (DEMS) and XPS. Similar products as without DBBQ are deposited on the electrode surface. The analysis of the DEMS experiments shows that DBBQ- reduces O2 to O2- and O22- , whereas in the presence of DBBQ2- O22- is formed. The mechanism of the ORR with and without DBBQ is discussed. Pectus Excavatum is
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