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https://open.uns.ac.rs/handle/123456789/9888
Title: | Biamperometric end-point detection with quinhydrone electrodes in coulometric neutralization titrations in nonaqueous media | Authors: | Gaál F. Kuzmić D. Horvat R. |
Issue Date: | 1-Jan-1978 | Journal: | Microchemical Journal | Abstract: | Some new possibilities for continuous coulometric titration of bases, alone and in mixture, as well as of mineral acids, alone and in mixture, were investigated with acetic anhydride-anhydrous acetic acid as solvents. The titration end point was determined biamperometrically. It was established that quinhydrone electrodes with platinum, palladium, and gold as the metal phase can be equally satisfactorily applied to the end-point determination of both the titrations of bases or acids alone, and of their two-component mixtures. Amounts of 6-10 μequiv. of bases, i.e., 20-47 μequiv. of mineral acids, were determined with the maximal average deviation of 1.4%. Results of biamperometric determinations of bases are compared to those of catalytic thermometric determinations, while those of acids are compared with the results of photometric titrations. The agreement between the methods is satisfactory. © 1978. | URI: | https://open.uns.ac.rs/handle/123456789/9888 | ISSN: | 0026265X | DOI: | 10.1016/0026-265X(78)90002-4 |
Appears in Collections: | Naučne i umetničke publikacije |
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