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Potentiometric determination of aqueous dissociation constants of flavonols sparingly soluble in water

✍ Scribed by José M. Herrero-Martínez; Carme Repollés; Elisabeth Bosch; Martí Rosés; Clara Ràfols

Book ID
116902669
Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
306 KB
Volume
74
Category
Article
ISSN
0039-9140

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Determination of dissociation constants
Determination of dissociation constants of sparingly soluble phenothiazine derivatives by second-derivative spectrophotometry
✍ Keisuke Kitamura; Miharu Takenaka; Sachiyo Yoshida; Mariko Ito; Yuriko Nakamura; 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 329 KB

The dissociation constants (pK,) for sparingly soluble phenothiazines (promazine, chlorpromazine, trifluoropromazine) in water were measured by second-derivative spectrophotometry. The intense background signals in the absorption spectra due to the turbidity caused by the precipitation of insoluble