用M4PO（3,3,5,5-四甲基吡咯啉-N-氧化物）对超氧化物进行自旋捕获。
The spin trapping of superoxide with M4PO (3,3,5,5-tetramethylpyrroline-N-oxide).
作者信息
Buettner G R, Britigan B E
机构信息
ESR Center, University of Iowa, Iowa City 52242.
出版信息
Free Radic Biol Med. 1990;8(1):57-60. doi: 10.1016/0891-5849(90)90145-9.
PMID:2157635
Abstract
The spin trap 3,3,5,5-tetramethylpyrroline-N-oxide (M4PO) reacts with superoxide to produce a short-lived spin adduct (M4PO/.OOH, AN = 14.0 G, AH = 6.5 G) that decays by a first-order process (t1/2 approximately 35 s at pH 7.4). This short lifetime may limit its usefulness in studies of superoxide.
摘要
自旋捕获剂3,3,5,5-四甲基吡咯啉-N-氧化物（M4PO）与超氧化物反应生成一种寿命短暂的自旋加合物（M4PO/.OOH，ΔN = 14.0 G，ΔH = 6.5 G），该加合物通过一级过程衰变（在pH 7.4时半衰期约为35秒）。这种短暂的寿命可能会限制其在超氧化物研究中的用途。
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