引用本文:
马建华. 琥珀酸-壳聚胺-Cu(Ⅱ)配合物清除超氧阴离子自由基的性能[J]. 应用化学,
2008, 25(9): 1119-1121.
Citation: MA Jian-Hua. Scavenging Effect of Succinic Acid Chitosan Complex with Copper(Ⅱ) for Superoxide Anion Radical[J]. Chinese Journal of Applied Chemistry, 2008, 25(9): 1119-1121.
Citation: MA Jian-Hua. Scavenging Effect of Succinic Acid Chitosan Complex with Copper(Ⅱ) for Superoxide Anion Radical[J]. Chinese Journal of Applied Chemistry, 2008, 25(9): 1119-1121.
琥珀酸-壳聚胺-Cu(Ⅱ)配合物清除超氧阴离子自由基的性能
摘要:
用稳态辐照法研究了琥珀酸-壳聚糖-Cu(Ⅱ)配合物对超氧阴离子自由基(O2-·)清除效果,测定了反应动力学常数。结果表明,琥珀酸-壳聚糖-Cu(Ⅱ)配合物对超氧阴离子自由基清除效率达90.6%,几乎与天然SOD相当。在254和365 nm紫外光和自然光照辐照下,琥珀酸-壳聚糖-Cu(Ⅱ)配合物与O2-的反应速率常数分别为:1.26×109、1.11×109、4.98×108 L/(mol·s)。
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关键词:
- 琥珀酸-壳聚糖-Cu(Ⅱ)配合物
- / 超氧阴离子自由基
- / 清除效果
- / 反应动力学
English
Scavenging Effect of Succinic Acid Chitosan Complex with Copper(Ⅱ) for Superoxide Anion Radical
Abstract:
The scavenging effect of succinic acid chitosan complex with copper(Ⅱ) for superoxide anion radical and the reaction kinetics were studied by illumination method.The results showed that the scavenging rates of succinic acid chitosan complex with copper(Ⅱ) and natural superoxide dismutase(SOD) for superoxide anion radical were 90.55% and 93% respectively.The reaction rate constants of succinic acid chitosan complex with copper(Ⅱ) and superoxide anion radical were determined to be 1.26×109 L/(mol·s),1.11×109 L/(mol·s) and 4.98×108 L/(mol·s) respectively.
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