Abstract
Abstract: This work describes a simple, fast (frequency of 170 injections h−1), and low-cost method for the simultaneous determination of two antioxidants, sinapic acid and tyrosol, using multiple-pulse amperometric detection at a glassy carbon electrode incorporated in a flow-injection analysis cell. A sequence of potential pulses was selected to detect sinapic acid and tyrosol separately in the course of a single injection step. During the characterization of electrochemical detection, conditions for the determination of the two antioxidants (such as the injected volume and the flow rate) were studied and the analytical figures of merit were calculated. The repeatability (expressed as %) RSD was < 4.0% (n = 10) and excellent linearity was obtained across two concentration ranges from 1.0 to 100 μM; the limits of detection of sinapic acid and tyrosol were around 1.0 μM. Graphical abstract: [Figure not available: see fulltext.].
| Original language | English |
|---|---|
| Pages (from-to) | 1679-1684 |
| Number of pages | 6 |
| Journal | Monatshefte fur Chemie |
| Volume | 149 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 1 Sep 2018 |
| Externally published | Yes |
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Keywords
- Electrochemistry
- Flow-injection analysis
- Glassy carbon electrode
- Oxidations
- Voltammetry
ASJC Scopus subject areas
- Chemistry(all)
Cite this
Simultaneous determination of sinapic acid and tyrosol by flow-injection analysis with multiple-pulse amperometric detection. / Bavol, Dmytro; Economou, Anastasios; Zima, Jiri; Barek, Jiri; Dejmkova, Hana.
In: Monatshefte fur Chemie, Vol. 149, No. 9, 01.09.2018, p. 1679-1684.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Simultaneous determination of sinapic acid and tyrosol by flow-injection analysis with multiple-pulse amperometric detection
AU - Bavol, Dmytro
AU - Economou, Anastasios
AU - Zima, Jiri
AU - Barek, Jiri
AU - Dejmkova, Hana
PY - 2018/9/1
Y1 - 2018/9/1
N2 - Abstract: This work describes a simple, fast (frequency of 170 injections h−1), and low-cost method for the simultaneous determination of two antioxidants, sinapic acid and tyrosol, using multiple-pulse amperometric detection at a glassy carbon electrode incorporated in a flow-injection analysis cell. A sequence of potential pulses was selected to detect sinapic acid and tyrosol separately in the course of a single injection step. During the characterization of electrochemical detection, conditions for the determination of the two antioxidants (such as the injected volume and the flow rate) were studied and the analytical figures of merit were calculated. The repeatability (expressed as %) RSD was < 4.0% (n = 10) and excellent linearity was obtained across two concentration ranges from 1.0 to 100 μM; the limits of detection of sinapic acid and tyrosol were around 1.0 μM. Graphical abstract: [Figure not available: see fulltext.].
AB - Abstract: This work describes a simple, fast (frequency of 170 injections h−1), and low-cost method for the simultaneous determination of two antioxidants, sinapic acid and tyrosol, using multiple-pulse amperometric detection at a glassy carbon electrode incorporated in a flow-injection analysis cell. A sequence of potential pulses was selected to detect sinapic acid and tyrosol separately in the course of a single injection step. During the characterization of electrochemical detection, conditions for the determination of the two antioxidants (such as the injected volume and the flow rate) were studied and the analytical figures of merit were calculated. The repeatability (expressed as %) RSD was < 4.0% (n = 10) and excellent linearity was obtained across two concentration ranges from 1.0 to 100 μM; the limits of detection of sinapic acid and tyrosol were around 1.0 μM. Graphical abstract: [Figure not available: see fulltext.].
KW - Electrochemistry
KW - Flow-injection analysis
KW - Glassy carbon electrode
KW - Oxidations
KW - Voltammetry
UR - http://www.scopus.com/inward/record.url?scp=85051248126&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85051248126&partnerID=8YFLogxK
U2 - 10.1007/s00706-018-2189-8
DO - 10.1007/s00706-018-2189-8
M3 - Article
AN - SCOPUS:85051248126
VL - 149
SP - 1679
EP - 1684
JO - Monatshefte fur Chemie
JF - Monatshefte fur Chemie
SN - 0026-9247
IS - 9
ER -