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Water treatment agent refers to chemicals added in the process of water treatment in order to remove most of the harmful substances in water (such as corrosive substances, metal ions, dirt and microorganisms, etc.) and obtain qualified civil or industrial water. Global water treatment industry.

Market research firm IHSMarkit pointed out in the latest report "Supply Chain Disruption: Why It Will Continue to Happen in 2022" that in 2022, solving the problem of supply chain disruption will no longer be a "sprint" model, but will evolve into a well-run " Marathon" schedule mode.

Stability is the ability of an in vitro diagnostic reagent to maintain the consistency of characteristics over time, a basic attribute that a reagent must have, an important indicator to ensure the effectiveness of a reagent during use, and the responsibility of the manufacturer.

Disinfection with alcohol is common sense. What is strange is that the alcohol used in medical treatment is alcohol with a concentration of 75%, but pure alcohol cannot sterilize. What is the reason for this?

The main reasons for the deterioration and smell of metal cutting fluid are anaerobic bacteria and aerobic bacteria. Aerobic bacteria have a characteristic. They must have sufficient oxygen in the process of survival and reproduction.

Generally speaking, a certain preservative can only kill or suppress a certain colony. Therefore, two or more preservatives are usually used in cosmetic formulations to achieve a broad antibacterial spectrum.

Liquid detergent contains a lot of water and organic matter, which provides a good source of nutrients for the growth of microorganisms. If microbial contamination sources are accidentally introduced during processing, storage, and use, the rapid growth and reproduction of bacteria and fungi will not only cause product deterioration, but may also endanger the health of consumers. The use of preservatives can effectively prevent this phenomenon. In the choice of preservatives, any preservative has the characteristics of the best use conditions and use restrictions.

In vitro diagnostic reagents [1 The current development status of the industry is very similar to the development of the home appliance industry in the early 1990s: on the one hand, the market is large; on the other hand, the monopoly advantage of imported reagents and diagnostic equipment is being broken and restricted by national products. . "This is a summary of the development status of in vitro diagnostic reagents in my country by Wu Lebin, the president of Zhongsheng Beikong Biotechnology Co., Ltd.

The common types of microbial contamination in household care products include bacteria, molds and yeasts.

What is sterilization (sterilazation, sterilant)? Refers to the process of using strong physical and chemical factors to kill or remove all pathogenic and non-pathogenic microorganisms in the external environment, including bacterial spores and fungal spores. It is an absolute concept. The effect is expressed by the sterilization rate, generally ≥99.9999%.