关于抗坏血酸和铜蛋白在白血病中的可能作用。III. 抗坏血酸与某些过渡金属离子相互作用的电子自旋共振研究。
On the possible involvement of ascorbic acid and copper proteins in leukemia. III. ESR investigations on the interaction between ascorbic acid and some transition metal ions.
作者信息
Lohmann W, Lange R
出版信息
Z Naturforsch C Biosci. 1979 Aug;34(7-8):546-9. doi: 10.1515/znc-1979-7-809.
The interaction between lyophilized samples of ascorbic acid and Cu2+, Fe3+ or Mn2+ has been investigated by means of ESR spectroscopy. All of the three transition metal ions form complexes with vitamin C, but only in the case of Cu2+ and Fe3+ the interaction results in a reduction of the metal ions. Cu2+ and ascorbic acid seem to form 2 : 1 complexes with an equilibrium constant of about K = 1 X 10(7) mol-1. None of these metal ion complexes exhibits, however, the ESR spectrum obtained with leukemic blood.
通过电子自旋共振光谱法研究了抗坏血酸冻干样品与Cu2+、Fe3+或Mn2+之间的相互作用。所有这三种过渡金属离子都与维生素C形成络合物，但只有在Cu2+和Fe3+的情况下，相互作用会导致金属离子还原。Cu2+和抗坏血酸似乎形成2:1的络合物，平衡常数约为K = 1×10(7) mol-1。然而，这些金属离子络合物均未表现出白血病血液所获得的电子自旋共振光谱。
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