Abstract
This work is focused on the determination of submicromolar concentrations of 5-nitroquinoline (5-NQ) using differential pulse voltammetry (DPV) and direct current voltammetry (DCV) at a novel type of carbon film electrode (CFE). The advantages of CFE are its wide potential window in both cathodic and anodic regions (ca 3 V span), high sensitivity, and low noise of measurements. The other advantages of CFE are the possibility to quickly and easily renew the electrode surface and also non-toxicity for environment compared to mercury electrodes. Calibration dependences in deionized water are linear from 0.4 to 100 μmol dm-3, with limit of quantification (LOQ) 1 μmol dm-3 using DCV, and from 0.2 to 100 μmol dm-3, with LOQ 0.4 μmol dm-3 using DPV. The DPV method was verified for model samples of drinking and river water. The calibration dependences were linear in the concentration ranges from 0.2 to 10 μmol dm-3 for both matrices, with LOQ 0.2 μmol dm-3 for drinking water and LOQ 0.6 μmol dm-3 for river water, respectively. This work has proved the usability of CFE for submicromolar determination of 5-NQ based on cathodic reduction of the present nitro group.
| Original language | English |
|---|---|
| Pages (from-to) | 153-158 |
| Number of pages | 6 |
| Journal | Monatshefte fur Chemie |
| Volume | 147 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 2016 |
| Externally published | Yes |
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Keywords
- 5-Nitroquinoline
- Carbon film electrode
- Electrochemistry
- Reduction
- Voltammetry
ASJC Scopus subject areas
- Chemistry(all)
Cite this
Electrochemical study of 5-nitroquinoline using carbon film electrode and its determination in model samples of drinking and river water. / Rumlova, Tereza; Jiranek, Ivan; Vyskocil, Vlastimil; Barek, Jiri.
In: Monatshefte fur Chemie, Vol. 147, No. 1, 01.01.2016, p. 153-158.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electrochemical study of 5-nitroquinoline using carbon film electrode and its determination in model samples of drinking and river water
AU - Rumlova, Tereza
AU - Jiranek, Ivan
AU - Vyskocil, Vlastimil
AU - Barek, Jiri
PY - 2016/1/1
Y1 - 2016/1/1
N2 - This work is focused on the determination of submicromolar concentrations of 5-nitroquinoline (5-NQ) using differential pulse voltammetry (DPV) and direct current voltammetry (DCV) at a novel type of carbon film electrode (CFE). The advantages of CFE are its wide potential window in both cathodic and anodic regions (ca 3 V span), high sensitivity, and low noise of measurements. The other advantages of CFE are the possibility to quickly and easily renew the electrode surface and also non-toxicity for environment compared to mercury electrodes. Calibration dependences in deionized water are linear from 0.4 to 100 μmol dm-3, with limit of quantification (LOQ) 1 μmol dm-3 using DCV, and from 0.2 to 100 μmol dm-3, with LOQ 0.4 μmol dm-3 using DPV. The DPV method was verified for model samples of drinking and river water. The calibration dependences were linear in the concentration ranges from 0.2 to 10 μmol dm-3 for both matrices, with LOQ 0.2 μmol dm-3 for drinking water and LOQ 0.6 μmol dm-3 for river water, respectively. This work has proved the usability of CFE for submicromolar determination of 5-NQ based on cathodic reduction of the present nitro group.
AB - This work is focused on the determination of submicromolar concentrations of 5-nitroquinoline (5-NQ) using differential pulse voltammetry (DPV) and direct current voltammetry (DCV) at a novel type of carbon film electrode (CFE). The advantages of CFE are its wide potential window in both cathodic and anodic regions (ca 3 V span), high sensitivity, and low noise of measurements. The other advantages of CFE are the possibility to quickly and easily renew the electrode surface and also non-toxicity for environment compared to mercury electrodes. Calibration dependences in deionized water are linear from 0.4 to 100 μmol dm-3, with limit of quantification (LOQ) 1 μmol dm-3 using DCV, and from 0.2 to 100 μmol dm-3, with LOQ 0.4 μmol dm-3 using DPV. The DPV method was verified for model samples of drinking and river water. The calibration dependences were linear in the concentration ranges from 0.2 to 10 μmol dm-3 for both matrices, with LOQ 0.2 μmol dm-3 for drinking water and LOQ 0.6 μmol dm-3 for river water, respectively. This work has proved the usability of CFE for submicromolar determination of 5-NQ based on cathodic reduction of the present nitro group.
KW - 5-Nitroquinoline
KW - Carbon film electrode
KW - Electrochemistry
KW - Reduction
KW - Voltammetry
UR - http://www.scopus.com/inward/record.url?scp=84952837849&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84952837849&partnerID=8YFLogxK
U2 - 10.1007/s00706-015-1573-x
DO - 10.1007/s00706-015-1573-x
M3 - Article
AN - SCOPUS:84952837849
VL - 147
SP - 153
EP - 158
JO - Monatshefte fur Chemie
JF - Monatshefte fur Chemie
SN - 0026-9247
IS - 1
ER -