The Accuracy of the Dale and Evans Method of Determining the Hydrogen Ion Concentration of Blood.

Adsorption of Cr(III) and Mg(II) from Hydrogen Peroxide Aqueous Solution by Amberlite IR-120 Synthetic Resin

In concentration of hydrogen peroxide, first, the solution should be quite pure, and then, it concentrate with methods such as vacuum distillation and cooling crystallization, because impurities in the hydrogen peroxide solution in high concentrations are causing decomposition of this substance; that is very dangerous. The purpose of this article is separation of chromium and magne...

The effect of hydrogen ion concentration on the anatomy of tobacco

Comparative Measurement of Serum Acetyl Cholinesterase Enzyme Using Three Different Methods

Introduction: IAChE (acetylcholinesterase) is one of the plasma’s enzymes that plays a crucial role in nervous signal transduction in synapses and is responsible for the hydrolysis of Ach. Material & Method: We investigated three methods for the determination of AChE in human blood serum, using three different assays. Michel methods are based on the measurement of hydrogen ion produced in pro...

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´...

اثر ترکیب پراکسید هیدروژن و یون نقره بر چهار مرحله از رشد میگوی سفید هندی (Fenneropenaeus indicus)

Silver ion and hydrogen peroxide act synergistically as a strong disinfectant. The purpose of this study was to assess the effect of combined hydrogen  peroxide 50% and silver ion 0.05% at four life stages of Indian white shrimp (Fenneropenaeus indicus) and to evaluate the feasibility  of using this substance in shrimp culture. The Trimmed Spearman-karber software was applied for determining EC...