LIQUID MEMBRANE ION-SELECTIVE ELECTRODES FOR POTENTIOMETRIC DOSAGE OF SOME METAL IONS
Abstract:
<p align="justify"> Four electrodes with liquid membrane, Cu2+ selective and Ni2+ selective, not described previously in the literature, were prepared and characterized. From these electrodes, I and 2 are based on simple complexes of Cu(II) and Ni(II) with 2,3-dithio-6-nitro-benzoquinoxaline-5,10-dione (dtnbqd), as ligand belonging to the dithiol class. Electrodes 3 and 4 are based on the corresponding mixed complexes in which the ammonia molecule acts as the second ligand and 2,3-dithio-6-nitro-benzoquinoxaline-5,10-dione as the first ligand. </p>
<p align="justify"> Four electrodes with liquid membrane, Cu2+ selective and Ni2+ selective, not described previously in the literature, were prepared and characterized. From these electrodes, I and 2 are based on simple complexes of Cu(II) and Ni(II) with 2,3-dithio-6-nitro-benzoquinoxaline-5,10-dione (dtnbqd), as ligand belonging to the dithiol class. Electrodes 3 and 4 are based on the corresponding mixed complexes in which the ammonia molecule acts as the second ligand and 2,3-dithio-6-nitro-benzoquinoxaline-5,10-dione as the first ligand. </p>
DOI: 10.48141/SBJCHEM.v7.n8.1999.68_1999.pdf
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