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Updated: Jun 28, 2026

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Published on: May 23, 2018

Speciation of vanadium in soil.

Justyna Połedniok¹, Franciszek Buhl

¹Department of Analytical Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland.

|October 31, 2008

Summary

This study presents a new method for vanadium speciation in soil using sequential extraction. Vanadium levels were highest in the organic fraction of industrial soil, indicating anthropogenic sources.

Area of Science:

Environmental Chemistry
Analytical Chemistry
Soil Science

Background:

Vanadium speciation is crucial for understanding its environmental fate and toxicity.
Existing methods for vanadium analysis in soil require refinement for accurate speciation.
Differentiating vanadium fractions in soil helps identify pollution sources.

Purpose of the Study:

To develop and validate a sequential extraction method for vanadium speciation in soil.
To determine the distribution of vanadium in different soil fractions.
To compare vanadium levels in soils from industrial and agricultural regions.

Main Methods:

Sequential extraction procedure based on Tessier et al. for separating five soil metal fractions.
Spectrophotometric determination of vanadium using a ternary complex with Chrome Azurol S and benzyldodecyldimethylammonium bromide.

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Solvent extraction for V(V) separation and ascorbic acid reduction prior to spectrophotometry.

Main Results:

The developed method successfully speciated vanadium in soil samples.
Higher vanadium concentrations were found in the organic matter fraction of Upper Silesia (industrial) soil, suggesting anthropogenic input.
Podlasie (agricultural) soil exhibited significantly lower vanadium levels across all fractions.

Conclusions:

The proposed method provides accurate vanadium speciation in soils.
Anthropogenic activities are a significant source of vanadium in industrial areas.
Vanadium distribution varies considerably between industrial and agricultural soil environments.