The statistical treatment of hydrogen ion concentration and pH.

The effect of hydrogen ion concentration on the anatomy of tobacco

Development of An Immobilized Enzyme Electrode for the Determination of Sulfite Ion

An enzyme electrode was developed using the enzyme sulfite oxidase (EC1.8.3.1) immobilized onto pig intestine. Hydrogen peroxide produced was monitored amperometrically. All experimental parameters such as pH, temperature, buffer constituent concentration, were thoroughly investigated and optimized when appropriate. The response to sulfite concentration was linear in the range 5.2´...

Optimization of factors affecting the application of Fenton process in sofa and detergent wastewater treatment

Introduction: Most commercial surfactants used for cleaning (as detergents (are part of xezenbiotic compounds. These compounds and products due to its toxic effects on aquatic organisms may interfere with hormonal system and consequently change the echo system. Since the biodegradation of those compounds are weak, ordinary methods are unable to break down conventional purification. Therefore, t...

The Rôle of the Activity Coefficient of the Hydrogen Ion in the Hydrolysis of Gelatin

1. The hydrolysis of gelatin at a constant hydrogen ion concentration follows the course of a monomolecular reaction for about one-third of the reaction. 2. If the hydrogen ion concentration is not kept constant the amount of hydrolysis in certain ranges of acidity is proportional to the square root of the time (Schütz's rule). 3. The velocity of hydrolysis in strongly acid solution (pH less th...

Red cell 2,3-diphosphoglycerate and intracellular arterial pH in acidosis and alkalosis.

With the use of ‘4C-DMO (‘4C-5, 5dimethyl-2,3-oxazolidmnedione), a weak organic acid, we measured the intraerythrocytic hydrogen ion concentration in 16 acidotic and alkalotic patients. Whole blood pH, red cell 2,3diphosphoglycerate, hemoglobin, oxyhemoglobin, plasma pCO2, and plasma bicarbonate were measured simultaneously on heparinized arterial blood. The results show: (1) hydrogen Ion conce...