Aquatic Humic Substances: Relationship Between Origin and Complexing Capacity

被引：0

作者：

María de Jesús González-Guadarrama

Ma. Aurora Armienta-Hernández

André H. Rosa

机构：

[1] Universidad Nacional Autónoma de México,Posgrado en Ciencias del Mar y Limnología

[2] Universidad Nacional Autónoma de México,Instituto de Geofísica

[3] Universidade Estadual Paulista Júlio de Mesquita Filho,Departamento de Engenharia Ambiental

来源：

Bulletin of Environmental Contamination and Toxicology | 2018年 / 100卷

关键词：

Aquatic humic substances; Complexation; Transition metals; Arsenic; pH; Redox;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Aiming to determine the relationship between source and complexing capacity, humic substances obtained from three sites (Sorocaba and Itapanhau Brasilian rivers, and Xochimilco Lake in Mexico) were studied. Copper, manganese, zinc and arsenic complexing capacity were determined for the three substances under various pH conditions. Results showed similar complexing capacity for the three elements depending on the chemistry of each one and on the physico–chemical conditions. Speciation diagrams showed that these conditions affect both, the humic substances, and the transition metals and arsenic.

引用

页码：627 / 633

页数：6

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