文章基本信息

标题：Characterization of Humic Acid from the River Bottom Sediments of Burigonga: Complexation Studies of Metals with Humic Acid
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作者：Mohammad Arifur Rahman ; Md. Abu Hasan ; Abdur Rahim 等
期刊名称：Pakistan Journal of Analytical & Environmental Chemistry
印刷版ISSN：1996-918X
电子版ISSN：2221-5255
出版年度：2010
卷号：11
期号：1
页码：42-52
语种：English
出版社：National Centre of Excellence in Analytical Chemsitry
摘要：In order to characterize and study of the complexation of humic acid with metal ions,sediment samples were collected from five different places in the Buriganga River. The Humic Acids were extracted with the standard procedure provided by the International Humic Substance Society (IHSS). The extracted Humic Acids were characterized with FTIR,EDX and CHNS analyzer and a comparison between the standard and extracted HA was carried out. High C/N ratios (71.48-87.36) are observed in the CHNS analysis. A complexation study of the Humic Acid with iron (III) and cadmium (II) was also carried out using EDX,UV-Visible spectrophotometer and AAS techniques. The coagulation behavior was observed with Jar test. From the study,it was found that iron and cadmium could make a complex at pH 6.0 which was confirmed by EDX (Electron Dispersive x-ray)..
关键词：Humic acid;Iron;Cadmium;Complex;Buriganga river.