Sensitive voltammetric determination of thymol in essential oil of Carum copticum seeds using boron-doped diamond electrode
Članak u časopisu (Recenzirana verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Essential oil of Carum copticum seeds, obtained from a local shop, was extracted and content of thymol was analyzed using square-wave voltammetry at boron-doped diamond electrode. The effect of various parameters, such as pH of supporting electrolyte and square-wave voltammetric parameters (modulation amplitude and frequency), was examined. In Britton-Robinson buffer solution (pH 4), thymol provided a single and oval-shaped irreversible oxidation peak at +1.13 V versus silver/silver chloride potassium electrode (3 M). Under optimal experimental conditions, a plot of peak height against concentration of thymol was found to be linear over the range of 4 to 100 mu M consisting of two linear ranges: from 4 to 20 mu M (R-2 = 0.9964) and from 20 to 100 mu M (R-2 = 0.9993). The effect of potential interferences such as p-cymene and gamma-terpinene (major components in essential oil of C copticum seeds) was evaluated. Thus, the proposed method displays a sufficient selectivity toward thymol wi...th a detection limit of 3.9 mu M, and it was successfully applied for the determination of thymol in essential oil of C copticum seeds. The Prussian blue method was used for validation of the proposed electroanalytical method.
Ključne reči:
Carum copticum seeds / Thymol / Boron-doped diamond electrodeIzvor:
Analytical Biochemistry, 2015, 486, 1-4Izdavač:
- Academic Press Inc Elsevier Science, San Diego
Finansiranje / projekti:
- Primena unapređenih oksidacionih procesa i nanostrukturisanih oksidnih materijala za uklanjanje zagađivača iz životne sredine, razvoj i optimizacija instrumentalnih tehnika za praćenje efikasnosti (RS-MESTD-Basic Research (BR or ON)-172030)
Napomena:
- This is the peer-reviewed version of the following article: Stanković, D. M. Sensitive Voltammetric Determination of Thymol in Essential Oil of Carum Copticum Seeds Using Boron-Doped Diamond Electrode. Analytical Biochemistry 2015, 486, 1–4. https://doi.org/10.1016/j.ab.2015.06.026
DOI: 10.1016/j.ab.2015.06.026
ISSN: 0003-2697
PubMed: 26119334
WoS: 000359881000001
Scopus: 2-s2.0-84937543217
Kolekcije
Institucija/grupa
Inovacioni centar / Innovation CentreTY - JOUR AU - Stanković, Dalibor PY - 2015 UR - https://cherry.chem.bg.ac.rs/handle/123456789/3418 AB - Essential oil of Carum copticum seeds, obtained from a local shop, was extracted and content of thymol was analyzed using square-wave voltammetry at boron-doped diamond electrode. The effect of various parameters, such as pH of supporting electrolyte and square-wave voltammetric parameters (modulation amplitude and frequency), was examined. In Britton-Robinson buffer solution (pH 4), thymol provided a single and oval-shaped irreversible oxidation peak at +1.13 V versus silver/silver chloride potassium electrode (3 M). Under optimal experimental conditions, a plot of peak height against concentration of thymol was found to be linear over the range of 4 to 100 mu M consisting of two linear ranges: from 4 to 20 mu M (R-2 = 0.9964) and from 20 to 100 mu M (R-2 = 0.9993). The effect of potential interferences such as p-cymene and gamma-terpinene (major components in essential oil of C copticum seeds) was evaluated. Thus, the proposed method displays a sufficient selectivity toward thymol with a detection limit of 3.9 mu M, and it was successfully applied for the determination of thymol in essential oil of C copticum seeds. The Prussian blue method was used for validation of the proposed electroanalytical method. PB - Academic Press Inc Elsevier Science, San Diego T2 - Analytical Biochemistry T1 - Sensitive voltammetric determination of thymol in essential oil of Carum copticum seeds using boron-doped diamond electrode VL - 486 SP - 1 EP - 4 DO - 10.1016/j.ab.2015.06.026 ER -
@article{ author = "Stanković, Dalibor", year = "2015", abstract = "Essential oil of Carum copticum seeds, obtained from a local shop, was extracted and content of thymol was analyzed using square-wave voltammetry at boron-doped diamond electrode. The effect of various parameters, such as pH of supporting electrolyte and square-wave voltammetric parameters (modulation amplitude and frequency), was examined. In Britton-Robinson buffer solution (pH 4), thymol provided a single and oval-shaped irreversible oxidation peak at +1.13 V versus silver/silver chloride potassium electrode (3 M). Under optimal experimental conditions, a plot of peak height against concentration of thymol was found to be linear over the range of 4 to 100 mu M consisting of two linear ranges: from 4 to 20 mu M (R-2 = 0.9964) and from 20 to 100 mu M (R-2 = 0.9993). The effect of potential interferences such as p-cymene and gamma-terpinene (major components in essential oil of C copticum seeds) was evaluated. Thus, the proposed method displays a sufficient selectivity toward thymol with a detection limit of 3.9 mu M, and it was successfully applied for the determination of thymol in essential oil of C copticum seeds. The Prussian blue method was used for validation of the proposed electroanalytical method.", publisher = "Academic Press Inc Elsevier Science, San Diego", journal = "Analytical Biochemistry", title = "Sensitive voltammetric determination of thymol in essential oil of Carum copticum seeds using boron-doped diamond electrode", volume = "486", pages = "1-4", doi = "10.1016/j.ab.2015.06.026" }
Stanković, D.. (2015). Sensitive voltammetric determination of thymol in essential oil of Carum copticum seeds using boron-doped diamond electrode. in Analytical Biochemistry Academic Press Inc Elsevier Science, San Diego., 486, 1-4. https://doi.org/10.1016/j.ab.2015.06.026
Stanković D. Sensitive voltammetric determination of thymol in essential oil of Carum copticum seeds using boron-doped diamond electrode. in Analytical Biochemistry. 2015;486:1-4. doi:10.1016/j.ab.2015.06.026 .
Stanković, Dalibor, "Sensitive voltammetric determination of thymol in essential oil of Carum copticum seeds using boron-doped diamond electrode" in Analytical Biochemistry, 486 (2015):1-4, https://doi.org/10.1016/j.ab.2015.06.026 . .