Metal (Pb, Cd, and Zn) Binding to Diverse Organic Matter Samples and Implications for Speciation Modeling

• Published in: Environmental science & technology Vol. 52; no. 7; pp. 4163 - 4172
• Main Authors: Chen, Weibin, Guéguen, Céline, Smith, D. Scott, Galceran, Josep, Puy, Jaume, Companys, Encarnació
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 03.04.2018
• Subjects: absorbance; Binding; Cadmium; Chemical bonds; Dependence; Dissolved organic carbon; Dissolved organic matter; environmental science; Fluorescence; Ionic strength; Lead; Mathematical models; Measurement; Metal concentrations; Metal ions; Metals; Optical properties; organic carbon; Organic chemicals; Performance indices; prediction; Predictions; Speciation; Titration; Variation; Zinc
• ISSN: 0013-936X; 1520-5851; 1520-5851
• DOI: 10.1021/acs.est.7b05302

This study evaluated the influence of dissolved organic matter (DOM) properties on the speciation of Pb, Zn, and Cd. A total of six DOM samples were categorized into autochthonous and allochthonous sources based on their absorbance and fluorescence properties. The concentration of free metal ions (C...