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The First Online Capillary Electrophoresis-Microscale Thermophoresis (CE-MST) Method for the Analysis of Dynamic Equilibria—The Determination of the Acidity Constant of Fluorescein Isothiocyanate [PDF]
This article presents the first successful application of a capillary electrophoresis-microscale thermophoresis tandem technique (CE-MST) for determining the values of equilibrium constant, realized by connecting online the CE and MST instruments using a
Paweł Mateusz Nowak +4 more
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INCREASING THE EFFICIENCY OF USING WOOD BIOMASS BY PROVIDING SPECIAL PROPERTIES
Background. The search for ways to use logging waste is a distinct scientific direction, due to the large number of their permanent formation. The importance of such studies is associated with the need to reduce the loss of valuable wood raw materials in
Mikhail A. Zyryanov +6 more
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The effect of β-cyclodextrin and pH on bifonazole hydrosolubility [PDF]
The equlibria of bifonazole in saturated water solution within the pH range 4 to 10 [I = 0.1 mol/dm3 (NaCl); 25 ºC] were studied spectrophotometrically. Based on the equlibrium constants determined in a heterogeneous system, the acidity constant (pKa = 5.
Popović Gordana V., Čakar Mira M.
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The acidity of atmospheric particles and clouds [PDF]
Acidity, defined as pH, is a central component of aqueous chemistry. In the atmosphere, the acidity of condensed phases (aerosol particles, cloud water, and fog droplets) governs the phase partitioning of semivolatile gases such as HNO3, NH3, HCl, and ...
H. O. T. Pye +24 more
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Coulometric-potentiometric determination of autoprotolysis constant and relative acidity scale of water [PDF]
The autoprotolysis constant and relative acidity scale of water were determined by applying the coulometric-potentiometric method and a hydrogen/palladium (H2/Pd) generator anode.
Džudović Radmila M. +1 more
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Controlled release study for captopril by using polymer carboxymethyl cellulose
The present study was done to prepare tablet for captopril (CAP) which used in the treatment of hypertension and heart failure. CAP is mainly absorbed from the proximal intestine and to a lesser extent from the stomach.
Reem Ibrahim Mahdi +2 more
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Acid dissociation constants of glycopeptides [PDF]
Glycopeptides containing mainly four amino acid residues in the sequence Asn-Leu-Thr-Ser, with small amounts of additional amino acid residues, were isolated from enzymic hydrolysates of hen's-egg albumin. Heterogeneity of the carbohydrate moiety was confirmed. Acid-base titrations showed that the alpha-amino group has a pKa value of 6.43 at 25 degrees
B M, Austen, R D, Marshall
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Amostras de carboximetilcelulose foram preparadas por reação heterogênea de polpa soda/antraquinona obtida de fibras pré-hidrolisadas de bagaço de cana-de-açúcar.
José Cláudio Caraschi +1 more
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The structure and properties of 1,3-phenylenediboronic acid are reported. Molecular and crystal structures were determined by single crystal as well as by powder X-ray diffraction methods.
Agnieszka Adamczyk-Woźniak +7 more
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1,2-dihydroxybenzenes (DHBs) are organic compounds which are widely studied as they are applied to advanced oxidation processes (AOPs). These compounds are also related to the development of oxidative stress, wood biodegradation, and neuronal disease in ...
Romina Romero +5 more
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