Speciation of Se and DOC in Soil Solution and Their Relation to Se Bioavailability

• Published in: Environmental science & technology Vol. 45; no. 1; pp. 262 - 267
• Main Authors: Weng, Liping, Vega, Flora Alonso, Supriatin, Supriatin, Bussink, Wim, Riemsdijk, Willem H. Van
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 01.01.2011
• Subjects: adsorption; Analytical chemistry; Bioavailability; Carbon; Carbon - chemistry; Carbon - metabolism; Colloids - chemistry; Colloids - metabolism; donnan membrane technique; Environmental Processes; Extraction processes; extracts; ion-chromatography; Mineralization; Netherlands; Nutrients; Phosphates; Phosphorus - chemistry; Phosphorus - metabolism; Poaceae - metabolism; samples; Selenium; Selenium - chemistry; Selenium - metabolism; Selenium Compounds - chemistry; Selenium Compounds - metabolism; selenium uptake; Soil - chemistry; Soil sciences; Solutions - chemistry; Solutions - metabolism; sorption; spectrometry; Trace Elements - chemistry; Trace Elements - metabolism; trace-metals; translocation

A 0.01 M CaCl2 extraction is often used to asses the bioavailability of plant nutrients in soils. However, almost no correlation was found between selenium (Se) in the soil extraction and Se content in grass. The recently developed anion Donnan membrane technique was used to analyze chemical speciat...