期刊
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
卷 55, 期 5, 页码 503-515出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00223131.2017.1416690
关键词
Humic acid; saline groundwater; thermodynamic quantities; characterization
资金
- Research Program for CORE lab of 'Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials' in 'Network Joint Research Center for Materials and Devices' [20166005]
- cooperative research program of Institute of Nature and Environmental Technology, Kanazawa University [37]
In this study, humic substances (humic acid and fulvic acid) were isolated from deep groundwater at -350m depth of Horonobe, Hokkaido, Japan to compare the characteristic property and reaction mechanism with generic humic acid isolated from surface soils. The size distributions of Horonobe humic substances were analyzed by size exclusion chromatography, flow-field flow fractionation, and total organic carbon measurement with ultrafiltration. All of them indicated small molecular weight and particle size of Horonobe humic acid in comparison with generic humic acids. Additionally, the simple protonation behavior of Horonobe humic substances similar to benzoic acid and/or phenol was revealed by thermodynamic quantities obtained by potentiometry and calorimetry. Consequently, molecular size and the reaction mechanism of Horonobe humic substances are different from generic humic acids, due to the characteristic origin.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据