Electrochemical Behaviour of Bis-Pyrazole-Azo-Chromotropic Acid and Its Use as Modifier for Elaboration of Potentiometric Sensor for the Copper Detection
Апстракт
The electrochemical behaviour of 2,7-bis-(pyrazole-3(5)-ylazo)-1,8-dihydroxynaphtalene-3,6-disulphonic acid (bis-PACA) and its complexes with Cu(II), Cd(II), Ni(II), Pb(II) and Hg(II) was investigated using cyclic voltammetry. Experiments were performed in the concentration range from 5 x 10(-5) to 7 x 10(-4) M of bis-pyrazole-azo-chromotropic acid (bis-PACA). Linear dependence of current intensity versus bis-PACA concentration was obtained in the investigated concentration range. According to the obtained results, the process is controlled by diffusion. The elaboration of a Cu(II) selective electrode by using bis-PACA as modifier was also investigated.
Кључне речи:
azo-dyes / cyclic voltammetry / heavy metal ions / ion selective electrodesИзвор:
Journal of Environmental Protection and Ecology, 2009, 10, 4, 1162-1169Финансирање / пројекти:
- CNCSIS [ET 3264/2005], Ministry of Science and Environmental Protection of Serbia [142051b]
Колекције
Институција/група
VinčaTY - JOUR AU - Savić, Jasmina AU - Vasić, Vesna M. AU - Cristea, C. AU - Sandulescu, R. PY - 2009 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3881 AB - The electrochemical behaviour of 2,7-bis-(pyrazole-3(5)-ylazo)-1,8-dihydroxynaphtalene-3,6-disulphonic acid (bis-PACA) and its complexes with Cu(II), Cd(II), Ni(II), Pb(II) and Hg(II) was investigated using cyclic voltammetry. Experiments were performed in the concentration range from 5 x 10(-5) to 7 x 10(-4) M of bis-pyrazole-azo-chromotropic acid (bis-PACA). Linear dependence of current intensity versus bis-PACA concentration was obtained in the investigated concentration range. According to the obtained results, the process is controlled by diffusion. The elaboration of a Cu(II) selective electrode by using bis-PACA as modifier was also investigated. T2 - Journal of Environmental Protection and Ecology T1 - Electrochemical Behaviour of Bis-Pyrazole-Azo-Chromotropic Acid and Its Use as Modifier for Elaboration of Potentiometric Sensor for the Copper Detection VL - 10 IS - 4 SP - 1162 EP - 1169 UR - https://hdl.handle.net/21.15107/rcub_vinar_3881 ER -
@article{ author = "Savić, Jasmina and Vasić, Vesna M. and Cristea, C. and Sandulescu, R.", year = "2009", abstract = "The electrochemical behaviour of 2,7-bis-(pyrazole-3(5)-ylazo)-1,8-dihydroxynaphtalene-3,6-disulphonic acid (bis-PACA) and its complexes with Cu(II), Cd(II), Ni(II), Pb(II) and Hg(II) was investigated using cyclic voltammetry. Experiments were performed in the concentration range from 5 x 10(-5) to 7 x 10(-4) M of bis-pyrazole-azo-chromotropic acid (bis-PACA). Linear dependence of current intensity versus bis-PACA concentration was obtained in the investigated concentration range. According to the obtained results, the process is controlled by diffusion. The elaboration of a Cu(II) selective electrode by using bis-PACA as modifier was also investigated.", journal = "Journal of Environmental Protection and Ecology", title = "Electrochemical Behaviour of Bis-Pyrazole-Azo-Chromotropic Acid and Its Use as Modifier for Elaboration of Potentiometric Sensor for the Copper Detection", volume = "10", number = "4", pages = "1162-1169", url = "https://hdl.handle.net/21.15107/rcub_vinar_3881" }
Savić, J., Vasić, V. M., Cristea, C.,& Sandulescu, R.. (2009). Electrochemical Behaviour of Bis-Pyrazole-Azo-Chromotropic Acid and Its Use as Modifier for Elaboration of Potentiometric Sensor for the Copper Detection. in Journal of Environmental Protection and Ecology, 10(4), 1162-1169. https://hdl.handle.net/21.15107/rcub_vinar_3881
Savić J, Vasić VM, Cristea C, Sandulescu R. Electrochemical Behaviour of Bis-Pyrazole-Azo-Chromotropic Acid and Its Use as Modifier for Elaboration of Potentiometric Sensor for the Copper Detection. in Journal of Environmental Protection and Ecology. 2009;10(4):1162-1169. https://hdl.handle.net/21.15107/rcub_vinar_3881 .
Savić, Jasmina, Vasić, Vesna M., Cristea, C., Sandulescu, R., "Electrochemical Behaviour of Bis-Pyrazole-Azo-Chromotropic Acid and Its Use as Modifier for Elaboration of Potentiometric Sensor for the Copper Detection" in Journal of Environmental Protection and Ecology, 10, no. 4 (2009):1162-1169, https://hdl.handle.net/21.15107/rcub_vinar_3881 .