Operationally defined availability from sequential extractions compared to plant uptake of137Cs and90Sr

被引：0

作者：

T. G. Hinton

M. A. Malek

C. Sherony

S. B. Clark

机构：

[1] Savannah River Ecology Laboratory,Department of Environmental Chemistry

[2] Washington State University,undefined

来源：

Journal of Radioanalytical and Nuclear Chemistry | 1998年 / 235卷

关键词：

Acetate; Ammonium; Physical Chemistry; Inorganic Chemistry; Ammonium Acetate;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The operationally defined bioavailable fraction from a commonly used sequential extraction (SE) procedure was compared to biological availability represented by plant uptake of137Cs and90Sr. Experiments were conducted at two locations in the Ukraine and at several field locations on the Savannah River Site, South Carolina. A significant regression existed between plant uptake and the ammonium acetate fraction (r2=0.65), however, ratios of predicted uptake from the SE procedure to observed plant uptake ranged from 0.03 to 5.2 Data suggest that SE procedure was useful for qualitative interpretations of biological availability but lacked sufficient rigor to be useful for quantitative predictions.

引用

页码：185 / 190

页数：5