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Photothermal spectrophotometer for meaurements of low absorption in liquid samples
J. Akbar, Humberto Cabrera, Dorota Korte, 2019, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: photothermal spectroscopy techniques, halogen lamps, TL signal
Objavljeno v RUNG: 16.07.2019; Ogledov: 3158; Prenosov: 0
Gradivo ima več datotek! Več...

2.
Determination of Dissolved Iron Redox Species in Freshwater Sediment using DGT Technique Coupled to BDS
Hanna Budasheva, Aleksander Kravos, Dorota Korte, Arne Bratkič, Yue Gao, Mladen Franko, 2019, izvirni znanstveni članek

Opis: 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) concentra- tion 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.
Ključne besede: Beam deflection spectroscopy, diffusive gradients in thin-film technique, iron redox species, photothermal techniques, sediment
Objavljeno v RUNG: 26.02.2019; Ogledov: 3647; Prenosov: 114
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