Extraction of 197mHg with TIBPS in HNO3 and HCI media

被引：0
作者：
Kmak, Kelly N. [1 ]
Valdez, Carlos A. [1 ,2 ]
Anex, Deon S. [1 ,2 ]
Despotopulos, John D. [1 ]
机构：
[1] Lawrence Livermore Natl Lab, Nucl & Chem Sci Div, Livermore, CA 94550 USA
[2] Lawrence Livermore Natl Lab, Forens Sci Ctr, Livermore, CA 94550 USA
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2022年 / 331卷 / 04期
关键词：
Mercury; NCA; TIBPS; Liquid-liquid extraction; CYANEX; 471X; MERCURY(II); METHYLATION; SEPARATION; SPECIATION; ACIDS;
D O I：
10.1007/s10967-022-08228-x
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The extraction of no carrier added mercury by tri-isobutyl phosphine sulfide (TIBPS) was characterized in HCl and HNO3 media. The extraction of Hg-197(m) as a function of acid concentration was similar in both acids over a large acid concentration (0.001 M to conc.) with high extraction (D similar to 1000) at low concentrations and decreasing extraction for higher concentrations (>= 4 M). The kinetics of extraction were rapid (similar to 5 min.) in both acids. Speciation experiments indicated that the extraction mechanism is 1:2 (Hg-197(m):TIBPS) in HCl and 1:1 in HNO3.
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收藏
页码：1629 / 1634
页数：6
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