Abstract
We report the first amperometric method for the simultaneous determination of tert-butylhydroquinone (tBHQ), propyl gallate (PG), and butylated hydroxyanisole (BHA) using flow injection analysis coupled to multiple-pulse amperometry. A sequence of potential pulses was selected in order to detect tBHQ, PG, and BHA separately in a single injection step at a glassy carbon electrode without the need of a preliminary separation. A mixture of methanol and 0.040 M Britton-Robinson buffer was used both as a carrier solution and for dilution of analyzed solutions before injection. The method is precise (RSD < 5%, n = 10), fast (a frequency of 140 injections h−1), provides sufficiently low quantification limits (2.51, 1.45, and 0.85 μmol L–1 for tBHQ, PG, and BHA, respectively) and can be easily applied without high demands on instrumentation. As a practical application, the determination of these antioxidants contained in commercial chewing gum samples was carried out by applying a simple extraction procedure.
| Original language | English |
|---|---|
| Pages (from-to) | 231-236 |
| Number of pages | 6 |
| Journal | Talanta |
| Volume | 178 |
| DOIs | |
| Publication status | Published - 1 Feb 2018 |
| Externally published | Yes |
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Keywords
- Antioxidants
- Flow injection analysis
- Glassy carbon electrode
- Multiple-pulse amperometry
ASJC Scopus subject areas
- Analytical Chemistry
Cite this
Simultaneous determination of tert-butylhydroquinone, propyl gallate, and butylated hydroxyanisole by flow-injection analysis with multiple-pulse amperometric detection. / Bavol, Dmytro; Economou, Anastasios; Zima, Jiri; Barek, Jiri; Dejmkova, Hana.
In: Talanta, Vol. 178, 01.02.2018, p. 231-236.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Simultaneous determination of tert-butylhydroquinone, propyl gallate, and butylated hydroxyanisole 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 - 2018/2/1
Y1 - 2018/2/1
N2 - We report the first amperometric method for the simultaneous determination of tert-butylhydroquinone (tBHQ), propyl gallate (PG), and butylated hydroxyanisole (BHA) using flow injection analysis coupled to multiple-pulse amperometry. A sequence of potential pulses was selected in order to detect tBHQ, PG, and BHA separately in a single injection step at a glassy carbon electrode without the need of a preliminary separation. A mixture of methanol and 0.040 M Britton-Robinson buffer was used both as a carrier solution and for dilution of analyzed solutions before injection. The method is precise (RSD < 5%, n = 10), fast (a frequency of 140 injections h−1), provides sufficiently low quantification limits (2.51, 1.45, and 0.85 μmol L–1 for tBHQ, PG, and BHA, respectively) and can be easily applied without high demands on instrumentation. As a practical application, the determination of these antioxidants contained in commercial chewing gum samples was carried out by applying a simple extraction procedure.
AB - We report the first amperometric method for the simultaneous determination of tert-butylhydroquinone (tBHQ), propyl gallate (PG), and butylated hydroxyanisole (BHA) using flow injection analysis coupled to multiple-pulse amperometry. A sequence of potential pulses was selected in order to detect tBHQ, PG, and BHA separately in a single injection step at a glassy carbon electrode without the need of a preliminary separation. A mixture of methanol and 0.040 M Britton-Robinson buffer was used both as a carrier solution and for dilution of analyzed solutions before injection. The method is precise (RSD < 5%, n = 10), fast (a frequency of 140 injections h−1), provides sufficiently low quantification limits (2.51, 1.45, and 0.85 μmol L–1 for tBHQ, PG, and BHA, respectively) and can be easily applied without high demands on instrumentation. As a practical application, the determination of these antioxidants contained in commercial chewing gum samples was carried out by applying a simple extraction procedure.
KW - Antioxidants
KW - Flow injection analysis
KW - Glassy carbon electrode
KW - Multiple-pulse amperometry
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U2 - 10.1016/j.talanta.2017.09.032
DO - 10.1016/j.talanta.2017.09.032
M3 - Article
VL - 178
SP - 231
EP - 236
JO - Talanta
JF - Talanta
SN - 0039-9140
ER -