1
IP Department, Research Institute of Petroleum Industry (RIPI), Tehran, P.O. Box 14665-137, Iran
2
Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), Tehran, P.O. Box 14665-137, Iran
3
Catalysis and Nanotechnology Research Division, Research Institute of Petroleum Industry (RIPI), Tehran, P.O. Box 14665-137, Iran
Abstract
Incorporation of N and S containing porous graphite (NSPG) in the composition of carbon paste electrodes (CPEs) can improve their sensing behavior. Result of former studies have indicated the selective interaction of N, N-bis(a-methylsalicylidene) diethylenetriamine (BMT) and Pr3+ ions, as opposed to other lanthanide ions. In this light, BMT was incorporated into a mixed matrix of NSPG and graphite powder to obtain a modified Pr3+ potentiometric sensor. The results indicated that the nano-composite sensor offers enhanced sensitivity, selectivity; response time; response stability and lifetime in comparison to CPEs modified using multiwall carbon nanotube (MWCNT). The optimal response (i.e. a Nernstian response of 19.7±0.3 mV per decade from 1.0×10-7 to 1.0×10-2 mol L-1) was observed for a sensor containing 10% NSPG, 15% BMT, 30% IL and 45 % graphite powder.
Rezapour,M. , Rashidi,A. and Sadegh Hasani,S. (2022). Modified Praseodymium Sensor based on Nitrogen and Sulfur Doped Porous Graphite. Analytical and Bioanalytical Electrochemistry, 14(5), 523-534.
MLA
Rezapour,M. , , Rashidi,A. , and Sadegh Hasani,S. . "Modified Praseodymium Sensor based on Nitrogen and Sulfur Doped Porous Graphite", Analytical and Bioanalytical Electrochemistry, 14, 5, 2022, 523-534.
HARVARD
Rezapour M., Rashidi A., Sadegh Hasani S. (2022). 'Modified Praseodymium Sensor based on Nitrogen and Sulfur Doped Porous Graphite', Analytical and Bioanalytical Electrochemistry, 14(5), pp. 523-534.
CHICAGO
M. Rezapour, A. Rashidi and S. Sadegh Hasani, "Modified Praseodymium Sensor based on Nitrogen and Sulfur Doped Porous Graphite," Analytical and Bioanalytical Electrochemistry, 14 5 (2022): 523-534,
VANCOUVER
Rezapour M., Rashidi A., Sadegh Hasani S. Modified Praseodymium Sensor based on Nitrogen and Sulfur Doped Porous Graphite. Anal. Bioanal. Electrochem., 2022; 14(5): 523-534.
