What is the pH of water and why is it important to know it?
Surely many have heard more than once about such a concept as pH (neutral, acidic or alkaline). This is an indicator of hydrogen, and it can be found both on a tube of cream and at a dermatologist's appointment. Information about the pH of the skin is very important. What is this p
Hydrogen index (pH factor)
In this article, we answer the questions of what is the acidity of wine and how it is determined. What is pH and why should the consumer know it. What is a degree of alcohol. Degree of alcohol One of these abbreviations is very simple - ABV means English "alcohol by volume
Organic matter in wastewater What are organic compounds in water
The fate of pollutants in natural waters develops in different ways. Heavy metals, once in a reservoir, are distributed in various forms, after which they are gradually carried away with the current, captured by bottom sediments or absorbed by aquatic organisms.
Identification of bacteria by antigenic structure
Antigens of bacteria by localization are divided into capsular, somatic, flagellar and exoproduct antigens (Fig. 9.6). Rice. K - capsular, 1 - virulence, H - flagella, 0 - somatic Capsular antigens, or K-antigens, are the most
Radioautography Method of autoradiography in cytology
Autoradiography autoradiography, autoradiography, a method for studying the distribution of radioactive substances in an object under study by imposing a photographic emulsion sensitive to radioactive radiation on the object. The radioactive substances contained in the object, as it were,
Toxic effect on humans of hazardous chemicals
Toxicity (from the Greek. toxikon - poison) - poisonousness, the property of certain chemical compounds and substances of biological nature, when released in certain quantities into a living organism (human, animal and plant), cause violations of its physiological functions.
What are peptides? Types and types of peptides. All about peptides and anti-aging cosmetics with peptides Additional peptides are not formed
These fragments are linked by a peptide bond: This compound is called a dipeptide. In this case, the dipeptide can react with one more amino acid, forming a tripeptide: Peptide formulas are written so that the free amino group is on the left, and the free
Naphthalene oxidation reaction
The simplest of the condensed benzoic hydrocarbons is naphthalene: Positions 1,4,5 and 8 are denoted by "α", positions 2, 3,6,7 are denoted by "β". The bulk of naphthalene is obtained from coal tar. In laboratory conditions, naphthalene
The experiments of the brothers Hans and Edward Buchner
Eduard Buchner (German: Eduard Buchner) is a German chemist and biochemist. Nobel Prize in Chemistry (1907) "for his research work in biological chemistry and the discovery of extracellular fermentation." Eduard Buchner was born on May 20, 1860 in Munich
Nanoclusters and nanocluster systems: organization, interaction, properties Classification of nanoclusters
One of the widespread methods for obtaining metal nanoparticles is laser evaporation of atoms from the surface (Fig. 33). Rice. 33. Installation for obtaining metal nanoparticles by laser evaporation of atoms from the surface. Investigation of the mass spectra of the flow