Results 71 to 80 of about 5,586 (187)

Acid-basic and complexation properties of a sedimentary humic acid. A study on the Barra Bonita reservoir of Tietê river, São Paulo State, Brazil

Journal of the Brazilian Chemical Society, 2001
Acid-base and complexation properties of humic acid (HA) isolated from a river sediment were studied by potentiometric titration, adopting the discrete site distribution model and the modified Gran functions for data fitting.
Abate Gilberto, Masini Jorge C.
doaj  

Elucidating Ionization Behavior: Potentiometric Titration for Precise Determination of pKa Values in Medicinal Chemistry

Pharmata
The determination of pKa values holds paramount importance in the field of medicinal chemistry, serving as a critical parameter for understanding the ionization behavior of pharmaceutical compounds.
Safiye Nihal Aydoğdu, Durişehvar Ünal
doaj  

Formation of nickel vanadates as a function of pH

Journal of the Brazilian Chemical Society, 2004
The precise nature of the reaction between hydrochloric acid and sodium ortho-vanadate solution has been studied by means of electrometric techniques involving potentiometric and conductometric titrations.
Prasad Shiva, Leite Valderí D., Santana Renato A. C., Moura Elisângela da S., A. Neto Ambrósio F., Souza Antonio G.   +5 more
doaj  

QUALITATIVE AND QUANTITATIVE ANALISIS OF ORGANIC ACIDS IN MIXTURE OF MULTIVITAMIN RAW MATERIAL

Разработка и регистрация лекарственных средств, 2019
The article presents the results of a qualitative analysis of organic acids in the mixture of the multivitamin raw material № 2. Thin layer chromatography method was confirmed to contain apple, citric and ascorbic acids.
V. Yu. Zhilkina, A. I. Marakhova, Ya. M. Stanishevskiy   +2 more
doaj  

Potentiometric titration for the high precision determination of active components in six types of chemical disinfectants. [PDF]

PLoS One, 2018
Liang J, Zhu J, Gong L, Liu X, Wang B.
europepmc   +1 more source

Surfactant Sensors in Biotechnology; Part 1 – Electrochemical Sensors

Food Technology and Biotechnology, 2004
An overview on electrochemical surfactant sensors is given with special attention to papers published since 1993. The importance of surfactants in modern biotechnology is stressed out. Electrochemical sensors are usually divided according to the measured
Milan Sak-Bosnar, Zorana Grabarić, Božidar S. Grabarić   +2 more
doaj  

Potentiometric Titration of Sulfadrugs

YAKUGAKU ZASSHI, 1973
S, Tagami, D I, Shiho
openaire   +3 more sources

DEVELOPMENT AND VALIDATION OF METHOD FOR POTENTIOMETRIC DETERMINATION OF SILVER IN PHARMACEUTICAL SUBSTANCE «ARGAMID»

Разработка и регистрация лекарственных средств, 2019
The article presents data on the development of an assay method of silver in pharmaceutical substance «Argamid» based on silver salt sulfadimidine. The method is based on the rhodanometric titration with potentiometric indication of the final point.
N. S. Skosyreva, N. A. Malakhova, S. Y. Saraeva, O. A. Melnikova, A. Y. Petrov   +4 more
doaj  

Determination of Carbonyl Functional Groups in Bio-oils by Potentiometric Titration: The Faix Method. [PDF]

J Vis Exp, 2017
Black S, Ferrell JR.
europepmc   +1 more source

Expanding the Toolbox of Simple, Cost-Efficient, and Automatable Methods for Quantifying Surface Functional Groups on NanoparticlesPotentiometric Titration. [PDF]

ACS Meas Sci Au
Tavernaro I, Sander PC, Andresen E, Schedler U, Resch-Genger U.   +4 more
europepmc   +1 more source