Composition analysis of strong phosphoric acid by pH titration method

Using Graphical Analysis in Titration Curves A typical titration curve obtained by plotting the measured pH of a weak acid solution as a strong base is added using graphical analysis for Windows

ESTIMATION OF POTENTIAL AND EFFECTIVE BR?NSTED ACID SITE CONCENTRATIONS IN ACIDIC MORDENITES BY CONDUCTOMETRIC TITRATION METHOD

Quantitative determination of Br?nsted acid sites in acidic mordenite samples with varying proton concentrations has been studied using aqueous conductometric titration method. Conductometric titration of the ammonium form of mordenite with sodium hydroxide is feasible and the results indicate potential number of Br?nsted acid sites. However, Br?nsted acid sites concentration in acidic mordenit...

Analysis of fatty acid composition of Withania coagulans fruits by gas chromatography/mass spectrometry

Background and objectives: Withania coagulans Dunal (Solanaceae) fruits are recommended to treat asthma, dyspepsia, biliousness, flatulent colic, liver complaints, intestinal infections, strangury, wounds and as diuretic, emetic and sedative agent in Indian traditional system of medicine. The objective of this study was to describe the systematic fatty acid composition...

Assay of carbonic anhydrase by titration at constant pH.

1. A method is described for measuring accurately the initial velocity of the hydration reaction catalysed by the enzyme carbonic anhydrase (EC 4.2.1.1); the method depends on the titration of H(+) ions at constant pH. 2. Human erythrocyte carbonic anhydrase, isoenzyme C, was used to illustrate the method. Under the experimental conditions employed (0 degrees , pH7.0, in the presence of 45mm-so...

Non Aqueous Titration for the Determination of Azelaic Acid: Introduction and Method Validation

Alpha-hydroxylic acids are widely used in the treatment and control of skin disorders. Azelaic acid is a naturally occuring Alpha-hydroxy acid that can be formed endogenously from long-chain dicardoxylic acids, metabolism of oleic acid or omega oxidation of mono carboxylic acids. It shows bacteriostatic and bactericidal activities against aerobic and anaerobic micro-organisms present on acne-be...