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Determination of Dissolved Iron Redox Species in Freshwater Sediment using DGT Technique Coupled to BDS

Tijdschriftbijdrage - Tijdschriftartikel

In this work we have developed a novel method for determination of iron redox species by the use of diffusive gradients in thin-film (DGT) technique coupled to photothermal beam deflection spectroscopy (BDS). The combination of both methods achieved low limit of detection (LOD) of 0.14 μM for Fe (II) ions. The total Fe concentration determined in the Vrtojbica river sediment (Slovenia, Rožna Dolina, 5000 Nova Gorica) was 49.3 μgL–1. The Fe (II) and Fe (III) concentration amounted to 12.8 μgL–1 and 39.9 μgL–1, respectively. Such an approach opens new opportunities for monitoring the content of iron species in natural waters and sediments and provides highly sensitive chemical analysis and an accurate
qualitative and quantitative characteristic of the materials under study.
Tijdschrift: Acta Chimica Slovenica
ISSN: 1318-0207
Issue: 1
Volume: 66
Pagina's: 239-246
Jaar van publicatie:2019
Trefwoorden:Beam deflection spectroscopy, Diffusive gradients in thin-film technique, Iron redox species, Photothermal techniques, Sediment
CSS-citation score:1
Toegankelijkheid:Open