- Tytuł:
- Voltammetric screen-printed carbon sensor modified with multiwalled carbon nanotubes and bismuth film for trace analysis of thallium(I)
- Autorzy:
-
Kozak, Jędrzej
Tyszczuk-Rotko, Katarzyna
Rotko, Marek - Powiązania:
- https://bibliotekanauki.pl/articles/110686.pdf
- Data publikacji:
- 2019
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
screen-printed sensor
anodic stripping voltammetry
bismuth film
multiwalled carbon nanotubes
thallium(I) - Opis:
- The paper investigates the possibility of using commercially available screen-printed sensors with carbon nanomaterials modified working electrodes to anodic stripping voltammetric determination of trace concentrations of Tl(I). Each working electrode was additionally plated in-situ with a bismuth film (BiF). The highest analytical signal of Tl(I) at potential of -0.65 V (vs. pseudo- reference silver electrode) was achieved at the screen-printed carbon sensor with multiwalled carbon nanotubes and bismuth film modified working electrode (SPCE/MWCNTs/BiF). The calibration curve was linear in the range of Tl(I) concentrations from 1·10-8 to 1·10-6 mol·dm-3 (-0.9 V, 180 s). The developed procedure of Tl(I) determination at this sensor allowed to achieve the low limits of detection and quantification of Tl(I), 2.8·10-9 and 9.3·10-9 mol·dm-3 respectively. The method was used to determine thallium in the spiked water samples from the Vistula river.
- Źródło:
-
Physicochemical Problems of Mineral Processing; 2019, 55, 6; 1422-1428
1643-1049
2084-4735 - Pojawia się w:
- Physicochemical Problems of Mineral Processing
- Dostawca treści:
- Biblioteka Nauki
Artykuł