@article {de Toledo:2009:0306-7319:1099,
title = "Determination of metal ions extracted by DTPA in a soil treated with effluent using an Hg-electroplated-Pt microelectrode",
journal = "International Journal of Environmental and Analytical Chemistry",
parent_itemid = "infobike://tandf/geac",
publishercode ="tandf",
year = "2009",
volume = "89",
number = "15",
publication date ="2009-12-01T00:00:00",
pages = "1099-1111",
itemtype = "ARTICLE",
issn = "0306-7319",
eissn = "1369-1619",
url = "https://www.ingentaconnect.com/content/tandf/geac/2009/00000089/00000015/art00002",
doi = "doi:10.1080/03067310903094487",
keyword = "soil, treated effluent, micronutrients, square wave voltammetry, Hg-electroplated-Pt microelectrode, square wave anodic stripping voltammetry",
author = "de Toledo, Renata Alves and Simoes, Marcelo Luiz and Silva, Wilson Tadeu Lopes da and Martin-Neto, Ladislau and PedroVaz, Carlos Manoel",
abstract = "Determinations of Cu, Fe, Mn and Zn were performed in an oxisol soil treated with effluent originated from a biodigester septic cesspool. The extracts were obtained from a DTPA/TEA (pH 7.3) solution and analysed by electroanalytical methodologies using square wave anodic stripping voltammetry
(SWASV) for the analysis of Cu, Mn and Zn and square wave voltammetry (SWV) for Fe analysis, both of them with a thin mercury film microelectrode (ME-Hg). DTPA (diethylenetriaminepentaacetic acid) complexes with Cu, Mn and Fe show electroactivity in the potentials range close to the ones for
the free ions in solution, but the Zn complex did not show any electroactivity at the potential range analysed. SWASV/ME-Hg and SWV/ME-Hg results were in good agreement (r2 = 0.996) with the flame atomic absorption spectroscopy (FAAS) analyses, demonstrating that electroanalytical methodologies
can be used for micronutrient determinations in soil extracts without serious interferences of the matrix components. Some characteristics of the complex formed between DTPA-metals are explored by EPR experiments.",
}