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Under natural conditions, more than 90 kinds of elements can be found on the earth, and at present, most scientists believe that there are 28 kinds of elements necessary for life, and among the 28 kinds of life elements, they can be divided into macro elements (or macro elements) and trace elements according to the content of the body.

Trace elements, as the name suggests, are the very small amounts of this element in the human body. Such as iron, silicon, zinc, nickel, tin, manganese, etc. These trace elements account for about the total mass of the human body. Although they are present in small quantities in the body, they play a crucial role in the process of vital activities.

Mineral water is classified as natural mineral water and unnatural, natural mineral water refers to water that naturally gushes out from deep underground or is collected by drilling, contains a certain amount of minerals, trace elements or other components, is not polluted in a certain area and precautions are taken to avoid contamination [1].

Classify. 1. According to the main types of mineral water whose characteristic components meet the national standards, they are divided into nine categories:

Metasilicic acid mineral water, strontium mineral water, zinc (zinc supplement products, zinc supplement information) mineral water, lithium mineral water, selenium mineral water, bromine mineral water, iodine mineral water, carbonated mineral water, salt mineral water.

2 Classification and naming by salinity:

Salinity is the total amount of ions, molecules, and compounds contained in a unit volume.

Salinity < 500 mg l for low salinity, 500-1500 mg l for medium salinity, and > 1500 mg l for high salinity. Salinity <1000mg l is light mineral water, >1000mg l is salt mineral water.

3 Classification according to the acidity and alkalinity of mineral water:

pH is the negative logarithmic value of the concentration of hydrogen ions in water, that is, pH = -1g [H+], which is a representative value of acidity and alkalinity. According to the definition of GB T14157-1993 "Hydrogeological Terminology", it can be divided into the following three categories: pH value.

Type Acidic water.

Neutral water Alkaline water.

4 Named according to the classification of anion and cation.

Anions are the main classification, cations are divided into subcategories, and 25% of the milligram equivalents of anion and cation are involved in the naming.

Chloride mineral water, including sodium chloride mineral water, magnesium chloride mineral water, etc.

Bicarbonate mineral water, including calcium bicarbonate (calcium supplement products, calcium supplement information) mineral water, calcium magnesium bicarbonate mineral water, calcium bicarbonate sodium mineral water, sodium bicarbonate mineral water, sodium bicarbonate mineral water, etc.

Sulfate mineral water, including magnesium sulfate mineral water, sodium sulfate mineral water, etc.

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