Radiolysis of cobalt(III)-1,2 bis(beta-aminoethoxy)ethane N,N,N′,N′ sodium sulfonate triacetic acid chelate

被引：0
|
作者：
El-Dessouky, MM [1 ]
Abdel-Raouf, MW
机构：
[1] Mil Tech Coll, Chair Chem, Cairo, Egypt
[2] Atom Energy Author, Hot Labs, Cairo, Egypt
[3] Atom Energy Author, Waste Management Ctr, Cairo, Egypt
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 1998年 / 229卷 / 1-2期
关键词：
Hydroxyl; Cobalt; Ethane; Dose Rate; Rate Measurement;
D O I：
10.1007/BF02389475
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Chelation studies of cobalt(III) with 1,2 bis(beta-aminoethoxy)ethane N,N,N',N'sodium sulfonate triacetic acid (ASTA) were performed. The results showed the effectiveness of ASTA as a chelating agent by using: molar ratio, continuous variation and slope ratio methods. Stable complex 1:1 was formed at pH from 6.0 to 10.5. Solutions of Co-ASTA chelate of different molar ratios at pH 6.5 and 8.0 were irradiated by different gamma-radiation doses. The results showed a linear decrease of absorbance with gamma-radiation dose which can be utilized as a dosimeter for low dose rate measurement in the range studied. A proposed radiolytic mechanism is discussed. The degradation of the ASTA ligand has been related to hydroxyl radical attack.
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收藏
页码：195 / 197
页数：3
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