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Voltammetric determination of mixtures of caffeine and chlorogenic acid in beverage samples using a boron-doped diamond electrode.
Talanta. 2013 Nov 15; 116:1010-7.T

Abstract

Herein, a boron-doped diamond (BDD) electrode that is anodically pretreated was used for the simultaneous determination of caffeine (CAF) and chlorogenic acid (CGA) by cyclic and adsorptive stripping voltammetry. The dependence of peak current and potential on pH, scan rate, accumulation parameters and other experimental variables were studied. By using square-wave stripping mode after 60 s accumulation under open-circuit voltage, the BDD electrode was able to separate the oxidation peak potentials of CAF and CGA present in binary mixtures by about 0.4V in Britton-Robinson buffer at pH 1.0. The limits of detection were 0.107 µg mL(-1) (5.51×10(-7) M) for CAF, and 0.448 µg mL(-1) (1.26×10(-6) M) for CGA. The practical applicability of this methodology was tested in commercially available beverage samples.

Authors+Show Affiliations

Faculty of Pharmacy, Department of Analytical Chemistry, Yüzüncü Yıl University, 65080 Van, Turkey.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

24148509

Citation

Yardım, Yavuz, et al. "Voltammetric Determination of Mixtures of Caffeine and Chlorogenic Acid in Beverage Samples Using a Boron-doped Diamond Electrode." Talanta, vol. 116, 2013, pp. 1010-7.
Yardım Y, Keskin E, Şentürk Z. Voltammetric determination of mixtures of caffeine and chlorogenic acid in beverage samples using a boron-doped diamond electrode. Talanta. 2013;116:1010-7.
Yardım, Y., Keskin, E., & Şentürk, Z. (2013). Voltammetric determination of mixtures of caffeine and chlorogenic acid in beverage samples using a boron-doped diamond electrode. Talanta, 116, 1010-7. https://doi.org/10.1016/j.talanta.2013.08.005
Yardım Y, Keskin E, Şentürk Z. Voltammetric Determination of Mixtures of Caffeine and Chlorogenic Acid in Beverage Samples Using a Boron-doped Diamond Electrode. Talanta. 2013 Nov 15;116:1010-7. PubMed PMID: 24148509.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Voltammetric determination of mixtures of caffeine and chlorogenic acid in beverage samples using a boron-doped diamond electrode. AU - Yardım,Yavuz, AU - Keskin,Ertugrul, AU - Şentürk,Zühre, Y1 - 2013/08/23/ PY - 2013/06/26/received PY - 2013/08/04/revised PY - 2013/08/07/accepted PY - 2013/10/24/entrez PY - 2013/10/24/pubmed PY - 2014/6/4/medline KW - Beverages KW - Boron-doped diamond electrode KW - Caffeine KW - Chlorogenic acid KW - Simultaneous determination KW - Square-wave adsorptive stripping voltammetry SP - 1010 EP - 7 JF - Talanta JO - Talanta VL - 116 N2 - Herein, a boron-doped diamond (BDD) electrode that is anodically pretreated was used for the simultaneous determination of caffeine (CAF) and chlorogenic acid (CGA) by cyclic and adsorptive stripping voltammetry. The dependence of peak current and potential on pH, scan rate, accumulation parameters and other experimental variables were studied. By using square-wave stripping mode after 60 s accumulation under open-circuit voltage, the BDD electrode was able to separate the oxidation peak potentials of CAF and CGA present in binary mixtures by about 0.4V in Britton-Robinson buffer at pH 1.0. The limits of detection were 0.107 µg mL(-1) (5.51×10(-7) M) for CAF, and 0.448 µg mL(-1) (1.26×10(-6) M) for CGA. The practical applicability of this methodology was tested in commercially available beverage samples. SN - 1873-3573 UR - https://www.unboundmedicine.com/medline/citation/24148509/Voltammetric_determination_of_mixtures_of_caffeine_and_chlorogenic_acid_in_beverage_samples_using_a_boron_doped_diamond_electrode_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0039-9140(13)00663-2 DB - PRIME DP - Unbound Medicine ER -