DETECTION OF FREE RADICALS IN SODIUM DITHIONITE BY PARAMAGNETIC RESONANCE
DETECTION OF FREE RADICALS IN SODIUM DITHIONITE BY PARAMAGNETIC RESONANCE
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DOI：
10.1038/178489a0
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发表时间：
1956-01-01
期刊：
影响因子：
64.8
通讯作者：
PARKER, CA
中科院分区：
文献类型：
--
作者：
HODGSON, WG;NEAVES, A;PARKER, CA
研究表明，结合草酸根离子的光化学氧化会导致自由基的形成（假设为 C2O4− 或 CO2−）。鉴于草酸根离子 C2O42− 和连二亚硫酸根离子 S2O42− 之间的形式相似性，以及它们通过相似机制进行氧化的可能性2，我们研究了从连二亚硫酸根离子产生相应自由基的可能性。顺磁共振装置与之前描述的相似。所有顺磁共振吸收的测量都是在液氧温度下进行的，样品密封在薄壁真空玻璃管中。
IT has been shown1that the photochemical oxidation of a bound oxalate ion leads to the formation of a free radical (assumed to be C2O4−or CO2−). In view of the formal analogy between the oxalate ion, C2O42−, and the dithionite ion, S2O42−, and the possibility of their undergoing oxidation by similar mechanisms2, we have investigated the possibility of producing the corresponding free radical from the dithionite ion. The paramagnetic resonance apparatus was similar to that previously described1. All measurements of paramagnetic resonance absorption were made at liquid-oxygen temperature with the samples sealed in thin-walled evacuated glass tubes.