Binding Constants of Mercury and Dissolved Organic Matter Determined by a Modified Ion Exchange Technique

• Published in: Environmental science & technology Vol. 45; no. 8; pp. 3576 - 3583
• Main Authors: Dong, Wenming, Bian, Yongrong, Liang, Liyuan, Gu, Baohua
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 15.04.2011
• Subjects: Applied sciences; Aqueous solutions; Biological and physicochemical phenomena; Earth sciences; Earth, ocean, space; Engineering and environment geology. Geothermics; Environmental Measurements Methods; Exact sciences and technology; Humic Substances - analysis; Humic Substances - standards; Ion Exchange; Ions; Mercury; Mercury - analysis; Mercury - chemistry; Mercury - standards; Mercury SFA; Natural water pollution; Organic chemistry; Pollution; Pollution, environment geology; Sulfur - chemistry; Water Pollutants, Chemical - analysis; Water Pollutants, Chemical - chemistry; Water Pollutants, Chemical - standards; Water treatment and pollution; Complexation; Pollutant behavior; Toxicity; Stability constant; Heavy metal; Trace element; Toxin; Binding capacity; Dissolved organic matter; Neurotoxin; Poison; Water pollution; Ion exchange; Mercury

Ion-exchange techniques have been widely used for determining the conditional stability constants (logK) between dissolved organic matter (DOM) and various metal ions in aqueous solution. An exception is mercuric ion, Hg2+, whose exceedingly strong binding with reduced sulfur or thiol-like functiona...