Potentiometric and Spectrophotometric Determination of Dissociation Constants of Cefetamet
Abstract
Summary. The dissociation constants of cefetamet-Na have been determined using potentiometric
titrations and spectrophotometry. The investigations were carried on in water solutions at constant
temperature and ionic strength, and at different H0 and pH values. Potentiometric investigations were
performed at three different temperatures and ionic strengths. The concentration dissociation constants
and the corresponding thermodynamic dissociation constants were calculated by a computer
program. The mixed dissociation constants (pK') of cefetamet-Na have been determined spectrophotometrically
in the H0 range from -5.80 to 0.00 and at pH values from 0.00 to 12.70 and are
in good agreement with values achieved by graphical methods as well as with those obtained
by potentiometric methods. Based on the determined values, the thermodynamic parameters
(AG, AH, AS) were calculated at I = 0.1 M.
Keywords:
Cefetamet-Na / Dissociation constants / Potentiometry / SpectrophotometrySource:
Monatshefte für Chemie, 1997, 128, 2, 137-Publisher:
- Springer Wien
Collections
Institution/Community
PharmacyTY - JOUR AU - Kosanić, Mara AU - Kapetanović, Vera AU - Milovanović, Ljiljana AU - Burić, N. AU - Veselinović, D. PY - 1997 UR - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5469 AB - Summary. The dissociation constants of cefetamet-Na have been determined using potentiometric titrations and spectrophotometry. The investigations were carried on in water solutions at constant temperature and ionic strength, and at different H0 and pH values. Potentiometric investigations were performed at three different temperatures and ionic strengths. The concentration dissociation constants and the corresponding thermodynamic dissociation constants were calculated by a computer program. The mixed dissociation constants (pK') of cefetamet-Na have been determined spectrophotometrically in the H0 range from -5.80 to 0.00 and at pH values from 0.00 to 12.70 and are in good agreement with values achieved by graphical methods as well as with those obtained by potentiometric methods. Based on the determined values, the thermodynamic parameters (AG, AH, AS) were calculated at I = 0.1 M. PB - Springer Wien T2 - Monatshefte für Chemie T1 - Potentiometric and Spectrophotometric Determination of Dissociation Constants of Cefetamet VL - 128 VL - 146 IS - 2 SP - 137 DO - 10.1007/BF00807302 ER -
@article{ author = "Kosanić, Mara and Kapetanović, Vera and Milovanović, Ljiljana and Burić, N. and Veselinović, D.", year = "1997", abstract = "Summary. The dissociation constants of cefetamet-Na have been determined using potentiometric titrations and spectrophotometry. The investigations were carried on in water solutions at constant temperature and ionic strength, and at different H0 and pH values. Potentiometric investigations were performed at three different temperatures and ionic strengths. The concentration dissociation constants and the corresponding thermodynamic dissociation constants were calculated by a computer program. The mixed dissociation constants (pK') of cefetamet-Na have been determined spectrophotometrically in the H0 range from -5.80 to 0.00 and at pH values from 0.00 to 12.70 and are in good agreement with values achieved by graphical methods as well as with those obtained by potentiometric methods. Based on the determined values, the thermodynamic parameters (AG, AH, AS) were calculated at I = 0.1 M.", publisher = "Springer Wien", journal = "Monatshefte für Chemie", title = "Potentiometric and Spectrophotometric Determination of Dissociation Constants of Cefetamet", volume = "128, 146", number = "2", pages = "137", doi = "10.1007/BF00807302" }
Kosanić, M., Kapetanović, V., Milovanović, L., Burić, N.,& Veselinović, D.. (1997). Potentiometric and Spectrophotometric Determination of Dissociation Constants of Cefetamet. in Monatshefte für Chemie Springer Wien., 128(2), 137. https://doi.org/10.1007/BF00807302
Kosanić M, Kapetanović V, Milovanović L, Burić N, Veselinović D. Potentiometric and Spectrophotometric Determination of Dissociation Constants of Cefetamet. in Monatshefte für Chemie. 1997;128(2):137. doi:10.1007/BF00807302 .
Kosanić, Mara, Kapetanović, Vera, Milovanović, Ljiljana, Burić, N., Veselinović, D., "Potentiometric and Spectrophotometric Determination of Dissociation Constants of Cefetamet" in Monatshefte für Chemie, 128, no. 2 (1997):137, https://doi.org/10.1007/BF00807302 . .