A carregar...
Publicação
Construction of sensor for submicromolar detection of riboflavin by surface modification of SPCE with thermal degradation products of nickel acetate tetrahydrate
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 4.03 MB | Adobe PDF |
Orientador(es)
Resumo(s)
Nickel acetate tetrahydrate (NAT) sample series were used to modify screen-printed carbon electrodes (SPCE). The samples were hybrid Ni/NiO nanocomposites, where the NiO phase increased with an applied treatment temperature. Results of electrochemical measurements pointed that the Ni/NiO550/SPCE-modified electrode had the best analytical performance toward the detection of riboflavin (RF). The Ni/NiO550/SPCE-based sensor showed linear response with RF in the concentration range of 0.5-75 mu M and 0.15 mu M LOD in BRBS. Sensor offered fast response time, good repeatability, and selectivity with an RSD of 1.4 %. Our results show that the Ni:NiO nanocomposite ratio strongly influenced the electroanalytical performance of SPCE.
Descrição
Palavras-chave
Nickel Nickel oxide Test strip Riboflavin Differential pulse voltammetry Electroanalysis
Contexto Educativo
Citação
Editora
Wiley