Abstract
The performance of a microcrystalline boron-doped diamond electrode in a thin-layer and wall-jet amperometric detection cell for HPLC was compared with the spectrophotometric detection. Comparison of peak parameters of 2-, 3-, and 4-aminobiphenyl after their separation revealed satisfactory repeatabilities of signal responses for all detection modes and regarding electrochemical detection higher current densities and higher noise for the thin-layer arrangement, and a slightly wider linear dynamic range of calibration dependencies and lower quantitation limits in the 10 -8molL -1 concentration range for the wall-jet arrangement. This detection mode was further employed for the determination of studied aminobiphenyls in model samples of the synthetic colorant tartrazine. Using solid phase extraction for the preliminary separation and preconcentration of the analytes the limit of quantitation was lowered to nanomolar concentrations.
| Original language | English |
|---|---|
| Pages (from-to) | 649-658 |
| Number of pages | 10 |
| Journal | Electroanalysis |
| Volume | 24 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Mar 2012 |
| Externally published | Yes |
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Keywords
- Aminobiphenyls
- Amperometric detection
- Boron-doped diamond
- Dyes/Pigments
- Liquid chromatography
ASJC Scopus subject areas
- Analytical Chemistry
- Electrochemistry
Cite this
Thin-Layer and Wall-Jet Arrangement of Amperometric Detector with Boron-Doped Diamond Electrode : Comparison of Amperometric Determination of Aminobiphenyls in HPLC-ED. / Maixnerová, Lucie; Barek, Jiří; Pecková, Karolina.
In: Electroanalysis, Vol. 24, No. 3, 01.03.2012, p. 649-658.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thin-Layer and Wall-Jet Arrangement of Amperometric Detector with Boron-Doped Diamond Electrode
T2 - Comparison of Amperometric Determination of Aminobiphenyls in HPLC-ED
AU - Maixnerová, Lucie
AU - Barek, Jiří
AU - Pecková, Karolina
PY - 2012/3/1
Y1 - 2012/3/1
N2 - The performance of a microcrystalline boron-doped diamond electrode in a thin-layer and wall-jet amperometric detection cell for HPLC was compared with the spectrophotometric detection. Comparison of peak parameters of 2-, 3-, and 4-aminobiphenyl after their separation revealed satisfactory repeatabilities of signal responses for all detection modes and regarding electrochemical detection higher current densities and higher noise for the thin-layer arrangement, and a slightly wider linear dynamic range of calibration dependencies and lower quantitation limits in the 10 -8molL -1 concentration range for the wall-jet arrangement. This detection mode was further employed for the determination of studied aminobiphenyls in model samples of the synthetic colorant tartrazine. Using solid phase extraction for the preliminary separation and preconcentration of the analytes the limit of quantitation was lowered to nanomolar concentrations.
AB - The performance of a microcrystalline boron-doped diamond electrode in a thin-layer and wall-jet amperometric detection cell for HPLC was compared with the spectrophotometric detection. Comparison of peak parameters of 2-, 3-, and 4-aminobiphenyl after their separation revealed satisfactory repeatabilities of signal responses for all detection modes and regarding electrochemical detection higher current densities and higher noise for the thin-layer arrangement, and a slightly wider linear dynamic range of calibration dependencies and lower quantitation limits in the 10 -8molL -1 concentration range for the wall-jet arrangement. This detection mode was further employed for the determination of studied aminobiphenyls in model samples of the synthetic colorant tartrazine. Using solid phase extraction for the preliminary separation and preconcentration of the analytes the limit of quantitation was lowered to nanomolar concentrations.
KW - Aminobiphenyls
KW - Amperometric detection
KW - Boron-doped diamond
KW - Dyes/Pigments
KW - Liquid chromatography
UR - http://www.scopus.com/inward/record.url?scp=84857728561&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84857728561&partnerID=8YFLogxK
U2 - 10.1002/elan.201100616
DO - 10.1002/elan.201100616
M3 - Article
VL - 24
SP - 649
EP - 658
JO - Macromolecular Chemistry and Physics
JF - Macromolecular Chemistry and Physics
SN - 1040-0397
IS - 3
ER -