Rate constants of reactions of κ-carrageenan with hydrated electron and hydroxyl radical

被引：6
|
作者：
Abad, L. V. [1 ,2 ]
Saiki, S. [2 ]
Kudo, H. [2 ]
Muroya, Y. [2 ]
Katsumura, Y. [2 ]
de la Rosa, A. M. [1 ]
机构：
[1] Philippine Nucl Res Inst, Quezon City, Philippines
[2] Univ Tokyo, Nucl Prof Sch, Sch Engn Lab, Naka, Ibaraki 3191188, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2007年 / 265卷 / 01期
关键词：
kappa-carrageenan; pulse radiolysis; laser photolysis;
D O I：
10.1016/j.nimb.2007.09.014
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The rate constants for the reactions of kappa-carrageenan with hydrated electron and hydroxyl radical was investigated by pulse radiolysis and laser photolysis. The kinetics of the reaction of hydrated electron indicates no seeming reaction with kappa-carrageenan. On the other hand, hydroxyl radical reacts very rapidly with kappa-carrageenan at a rate constant of approximately 1.2 x 10(9) M-1 s(-1). This rate constant varies with pH. (c) 2007 Elsevier B.V. All rights reserved.
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页码：410 / 413
页数：4
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