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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