Department of Chemistry, Mulawarman University, Samarinda-Indonesia, Jl. Barong Tongkok No.4 Kampus Gn. Kelua Samarinda 75123, Indonesia
Abstract
The research on the preparation and characterization of Pb2+ Ion Selective Electrode (ISE) using dithizone (DTZ) as ion carrier has been done. Membrane of ISE was made with the optimum composition with ratio of DTZ : PVC : DOP was 6 : 3 : 1. The membrane was doped using 1M Pb2+ solution within 7 days, and characterized using FT-IR to determine the shift of wave number from the spectrum of the group from membrane before and after doped. The results of characterization of FT-IR spectra of membrane after doped, shows that there is a shift of wave number from absorption spectra of secondary amine (N-H) group and absorption spectra of thiol (S-H) group didn’t appear. The result of characterization of Pb2+ ISE shows that ISE worked well with range concentration of 1×10-4 - 1×10-1 M, with Nernst slope was 29.5 mV/decade and the limit of detection was 1.5×10-4 M. The electrode worked optimally at pH 5, the response time was 9-48 seconds and can be used within 6 weeks. The presence of interfere ions, such as Ag+, Zn2+, Cu2+, Cd2+, Cl- and SO42- didn’t affect to the determination of Pb2+ ions in the samples.
Panggabean, A., Gripaldi, F., Pasaribu, S. (2021). Preparation and Characterization of Pb(II) Ion Selective Electrode based on Dithizone as Chemical Sensor. Analytical and Bioanalytical Electrochemistry, 13(3), 383-392.
MLA
Aman Panggabean; Fakhry Gripaldi; Subur P. Pasaribu. "Preparation and Characterization of Pb(II) Ion Selective Electrode based on Dithizone as Chemical Sensor". Analytical and Bioanalytical Electrochemistry, 13, 3, 2021, 383-392.
HARVARD
Panggabean, A., Gripaldi, F., Pasaribu, S. (2021). 'Preparation and Characterization of Pb(II) Ion Selective Electrode based on Dithizone as Chemical Sensor', Analytical and Bioanalytical Electrochemistry, 13(3), pp. 383-392.
VANCOUVER
Panggabean, A., Gripaldi, F., Pasaribu, S. Preparation and Characterization of Pb(II) Ion Selective Electrode based on Dithizone as Chemical Sensor. Analytical and Bioanalytical Electrochemistry, 2021; 13(3): 383-392.
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