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Assessment of the use of boron-doped diamond electrode for highly sensitive voltammetric determination of the azo-dye carmoisine E-122 in food and environmental matrices.
Talanta. 2020 Dec 01; 220:121417.T

Abstract

A new protocol for the analysis of the azo-dye carmoisine (CMS) is presented by coupling differential pulse voltammetry (DPV) with a cathodically pretreated boron-doped diamond electrode (CPT-BDDE), in phosphate buffer solution (pH 2.0). The CMS presented diffusion-controlled oxidation and reduction peaks at +0.88 and -0.15 V vs Ag/AgCl, respectively. The effect of the pretreatment conditions, pH, and supporting electrolytes were evaluated to the voltammetric determination of CMS. Under optimized conditions, the differential pulse voltammetric signals for CMS were linear over the concentration range of 0.059-1.31 μmol L-1 and 0.010-0.079 μmol L-1 with limits of detection of 7.0 and 3.0 nmol L-1, for the anodic and cathodic processes respectively. The method was precise for CMS determination (RSD < 5.0%) and selective against other dyes. The developed protocol was successfully applied in the analysis of CMS in surface water and foodstuffs with accurate results in comparison with those obtained using a validated spectrophotometric method.

Authors+Show Affiliations

Laboratório de Eletroanalítica e Sensores, Departamento de Química, Centro de Ciências Exatas, Universidade Estadual de Londrina, CEP 86057-970, Londrina - PR, Brazil.Laboratório de Eletroanalítica e Sensores, Departamento de Química, Centro de Ciências Exatas, Universidade Estadual de Londrina, CEP 86057-970, Londrina - PR, Brazil.Laboratório de Eletroanalítica e Sensores, Departamento de Química, Centro de Ciências Exatas, Universidade Estadual de Londrina, CEP 86057-970, Londrina - PR, Brazil. Electronic address: carlos.salamanca@uel.br.Laboratório de Eletroquímica Ambiental, Departamento de Química, Centro de Ciências Exatas, Universidade Estadual de Londrina, CEP 86057-970, Londrina - PR, Brazil.Laboratório de Eletroanalítica e Sensores, Departamento de Química, Centro de Ciências Exatas, Universidade Estadual de Londrina, CEP 86057-970, Londrina - PR, Brazil. Electronic address: elensartori@uel.br.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32928428

Citation

Micheletti, Lais, et al. "Assessment of the Use of Boron-doped Diamond Electrode for Highly Sensitive Voltammetric Determination of the Azo-dye Carmoisine E-122 in Food and Environmental Matrices." Talanta, vol. 220, 2020, p. 121417.
Micheletti L, Coldibeli B, Salamanca-Neto CAR, et al. Assessment of the use of boron-doped diamond electrode for highly sensitive voltammetric determination of the azo-dye carmoisine E-122 in food and environmental matrices. Talanta. 2020;220:121417.
Micheletti, L., Coldibeli, B., Salamanca-Neto, C. A. R., Almeida, L. C., & Sartori, E. R. (2020). Assessment of the use of boron-doped diamond electrode for highly sensitive voltammetric determination of the azo-dye carmoisine E-122 in food and environmental matrices. Talanta, 220, 121417. https://doi.org/10.1016/j.talanta.2020.121417
Micheletti L, et al. Assessment of the Use of Boron-doped Diamond Electrode for Highly Sensitive Voltammetric Determination of the Azo-dye Carmoisine E-122 in Food and Environmental Matrices. Talanta. 2020 Dec 1;220:121417. PubMed PMID: 32928428.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Assessment of the use of boron-doped diamond electrode for highly sensitive voltammetric determination of the azo-dye carmoisine E-122 in food and environmental matrices. AU - Micheletti,Lais, AU - Coldibeli,Bruna, AU - Salamanca-Neto,Carlos Alberto Rossi, AU - Almeida,Lucio Cesar, AU - Sartori,Elen Romão, Y1 - 2020/07/18/ PY - 2020/06/02/received PY - 2020/07/10/revised PY - 2020/07/14/accepted PY - 2020/9/15/entrez PY - 2020/9/16/pubmed PY - 2021/5/15/medline KW - Azorubine KW - Candy samples KW - Cathodic pretreatment KW - Diamond electrode KW - Differential pulse voltammetry SP - 121417 EP - 121417 JF - Talanta JO - Talanta VL - 220 N2 - A new protocol for the analysis of the azo-dye carmoisine (CMS) is presented by coupling differential pulse voltammetry (DPV) with a cathodically pretreated boron-doped diamond electrode (CPT-BDDE), in phosphate buffer solution (pH 2.0). The CMS presented diffusion-controlled oxidation and reduction peaks at +0.88 and -0.15 V vs Ag/AgCl, respectively. The effect of the pretreatment conditions, pH, and supporting electrolytes were evaluated to the voltammetric determination of CMS. Under optimized conditions, the differential pulse voltammetric signals for CMS were linear over the concentration range of 0.059-1.31 μmol L-1 and 0.010-0.079 μmol L-1 with limits of detection of 7.0 and 3.0 nmol L-1, for the anodic and cathodic processes respectively. The method was precise for CMS determination (RSD < 5.0%) and selective against other dyes. The developed protocol was successfully applied in the analysis of CMS in surface water and foodstuffs with accurate results in comparison with those obtained using a validated spectrophotometric method. SN - 1873-3573 UR - https://www.unboundmedicine.com/medline/citation/32928428/Assessment_of_the_use_of_boron_doped_diamond_electrode_for_highly_sensitive_voltammetric_determination_of_the_azo_dye_carmoisine_E_122_in_food_and_environmental_matrices_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0039-9140(20)30708-6 DB - PRIME DP - Unbound Medicine ER -