An Experimental Study of the In-Situ Fast Detecting Method for Dissolved Humic Acid

• 责任者：Feng Cangxu (Center for Hydrogeology and Environmental Geology ; CGS ; Baoding 071051 ; China) ; Liu Jun
• 刊名：Geology in China
• 出版年：2010
• 卷期：37(3)
• 关键词：比色法 ; colorimetry ; 腐植酸 ; humic acids
• 页码：p.831-834
• 图表：4 illus., 4 tables, 4 refs.
• 分类号：0900
• issnNo：ISSN1000-3657
• isbnNo：CN11-1167/P

 Micro-humic acid in drinking water can form stable complexes with heavy metals in the water, which might affect the modes of occurrence, movements and transformations of heavy metals. On the basis of analyzing characteristics of every detecting means, the authors put forward the colorimetry for detecting the humic acid in the water. Ports-15 spectrometer with 1 cm optical fiber color comparison probe and 650 nm wavelength red light was used in the laboratory for the test. As a result, the curve for the relationship between the thickness of the humic acid and the absorbency was drawn.