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Simultaneous square-wave voltammetric determination of aspartame and cyclamate using a boron-doped diamond electrode.
Talanta. 2008 Jul 30; 76(3):685-9.T

Abstract

A simple and highly selective electrochemical method was developed for the simultaneous determination of aspartame and cyclamate in dietary products at a boron-doped diamond (BDD) electrode. In square-wave voltammetric (SWV) measurements, the BDD electrode was able to separate the oxidation peak potentials of aspartame and cyclamate present in binary mixtures by about 400 mV. The detection limit for aspartame in the presence of 3.0x10(-4) mol L(-1) cyclamate was 4.7x10(-7) mol L(-1), and the detection limit for cyclamate in the presence of 1.0x10(-4) mol L(-1) aspartame was 4.2x10(-6) mol L(-1). When simultaneously changing the concentration of both aspartame and cyclamate in a 0.5 mol L(-1) sulfuric acid solution, the corresponding detection limits were 3.5x10(-7) and 4.5x10(-6) mol L(-1), respectively. The relative standard deviation (R.S.D.) obtained was 1.3% for the 1.0x10(-4) mol L(-1) aspartame solution (n=5) and 1.1% for the 3.0x10(-3) mol L(-1) cyclamate solution. The proposed method was successfully applied in the determination of aspartame in several dietary products with results similar to those obtained using an HPLC method at 95% confidence level.

Authors+Show Affiliations

Departamento de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos, SP, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Evaluation Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18585340

Citation

Medeiros, Roberta Antigo, et al. "Simultaneous Square-wave Voltammetric Determination of Aspartame and Cyclamate Using a Boron-doped Diamond Electrode." Talanta, vol. 76, no. 3, 2008, pp. 685-9.
Medeiros RA, de Carvalho AE, Rocha-Filho RC, et al. Simultaneous square-wave voltammetric determination of aspartame and cyclamate using a boron-doped diamond electrode. Talanta. 2008;76(3):685-9.
Medeiros, R. A., de Carvalho, A. E., Rocha-Filho, R. C., & Fatibello-Filho, O. (2008). Simultaneous square-wave voltammetric determination of aspartame and cyclamate using a boron-doped diamond electrode. Talanta, 76(3), 685-9. https://doi.org/10.1016/j.talanta.2008.04.015
Medeiros RA, et al. Simultaneous Square-wave Voltammetric Determination of Aspartame and Cyclamate Using a Boron-doped Diamond Electrode. Talanta. 2008 Jul 30;76(3):685-9. PubMed PMID: 18585340.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Simultaneous square-wave voltammetric determination of aspartame and cyclamate using a boron-doped diamond electrode. AU - Medeiros,Roberta Antigo, AU - de Carvalho,Adriana Evaristo, AU - Rocha-Filho,Romeu C, AU - Fatibello-Filho,Orlando, Y1 - 2008/04/20/ PY - 2008/02/05/received PY - 2008/04/08/revised PY - 2008/04/09/accepted PY - 2008/7/1/pubmed PY - 2008/8/14/medline PY - 2008/7/1/entrez SP - 685 EP - 9 JF - Talanta JO - Talanta VL - 76 IS - 3 N2 - A simple and highly selective electrochemical method was developed for the simultaneous determination of aspartame and cyclamate in dietary products at a boron-doped diamond (BDD) electrode. In square-wave voltammetric (SWV) measurements, the BDD electrode was able to separate the oxidation peak potentials of aspartame and cyclamate present in binary mixtures by about 400 mV. The detection limit for aspartame in the presence of 3.0x10(-4) mol L(-1) cyclamate was 4.7x10(-7) mol L(-1), and the detection limit for cyclamate in the presence of 1.0x10(-4) mol L(-1) aspartame was 4.2x10(-6) mol L(-1). When simultaneously changing the concentration of both aspartame and cyclamate in a 0.5 mol L(-1) sulfuric acid solution, the corresponding detection limits were 3.5x10(-7) and 4.5x10(-6) mol L(-1), respectively. The relative standard deviation (R.S.D.) obtained was 1.3% for the 1.0x10(-4) mol L(-1) aspartame solution (n=5) and 1.1% for the 3.0x10(-3) mol L(-1) cyclamate solution. The proposed method was successfully applied in the determination of aspartame in several dietary products with results similar to those obtained using an HPLC method at 95% confidence level. SN - 1873-3573 UR - https://www.unboundmedicine.com/medline/citation/18585340/Simultaneous_square_wave_voltammetric_determination_of_aspartame_and_cyclamate_using_a_boron_doped_diamond_electrode_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0039-9140(08)00274-9 DB - PRIME DP - Unbound Medicine ER -