What do we use water purifiers for in a laboratory?

Pure water in laboratories is more than a necessity, it is considered an essential element, which is why the purification of water in laboratories is considered a fundamental process, and this is achieved through specialized equipment called a water purifier.

This equipment removes impurities and organic and inorganic elements such as metals, bacteria and germs. Water is composed of calcium and magnesium salts, which provide hardness, it also contains other substances such as iron, silica, manganese, chlorides, sulfates, sodium and other suspended materials.

The hardness of the water is a factor that limits its use in certain processes, it is important to know the content of calcium and magnesium, due to their property of producing incrustations. There are several methods used in water treatment and the use of each of them depends on the objective pursued with the treated water. Water purity levels are defined based on its physicochemical parameters, such as electrical conductivity, resistivity, carbon, oxygen or silica content.

At present, laboratories that use water have established quality or purity requirements, as well as production methods and water analysis where the process or processes for its purification must be established. This work presents the necessary requirements of water for use in laboratories, based on the characteristics established by recognized institutions or international organizations that are specifically dedicated to the establishment of reference parameters for water quality, such as: American Society for Testing and Materials (ASTM); British Standards Institution (BSI); International Organization for Standardization (ISO).

What is the importance of using a water purifier in the laboratory?

The water purification process in a laboratory is a key process, since in laboratories the use of high purity water is of utmost importance, which greatly reduces errors such as those caused by contamination of samples, reagents and laboratory equipment, so the use of high purity water is an essential part of quality control programs in most laboratories.

There are several types of laboratory water purifiers. The basic principle of operation of this equipment is the separation of solids, softened water storage, particle filtration and reverse osmosis to obtain water and a minimum of salts.

Water purifiers provide laboratories with ultrapure water, that is, water treated with the highest levels of purity against all types of contaminants, either as mentioned above: organic and inorganic compounds, dissolved and particulate materials, volatile and non-volatile. , reactive and inert, hydrophilic and hydrophobic, and dissolved gases.

Advantages of owning a water purifier in the laboratory:

The advantages of owning a water purifier in the laboratory are many. Having a purifier ensures:

  • Purification in the laboratory is essential. Using high purity in an analytical laboratory can dramatically reduce time spent troubleshooting problems caused by sample or instrument contamination.
  • Maintaining a systematic control of purity or quality for use in the laboratory promotes the elimination of bias in the results, avoids interferences or collateral reactions and thus increases the reliability of these results.

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