Rejuvenation reagent-a convenient water molecule detector to be successfully developed in recent days
Water is the mother of life and exists in various forms on the surface and inside of the earth and other places. However, in some places and substances, even the presence of a little drop of water is not allowed, such as fuel, lubricants and organic solutions. If there is water in it, it will cause engine damage and metal parts. Rust and wrong chemical reactions. Therefore, how to detect and discover the content of water molecules in these places where no water is needed is very important.
At present, in industrial laboratories, the method of determining the content of water molecules in a substance is relatively complicated and time-consuming. To solve this problem, Dr. Bauum and his assistants in the Department of Organic Chemistry at the Weizmann Institute invented a new method for finding water. Using this method, not only can the water molecules in a very small number of substances be accurately found It exists, at low cost and fast.
Dr. Baum ’s method is very simple, that is, a special film with a thickness of only 1.7 nanometers is placed on the surface of a piece of glass. They implanted a metal complex into the film, which can "steal" electrons from water molecules. When the number of electrons in the metal composite changes, their color also changes, and the color change can be easily observed. This optical reader-based instrument does not need to be connected to large electronic equipment, and can complete the water molecule test within 5 minutes.
Using a simple chemical product, after washing the used molecular film, it can be restored to its original state and used again. In addition, the film has good stability, is suitable for high temperature environment and repeated use, and can be stored on the monolayer of relatively cheap glass, silicon, optical fiber or plastic. Due to the simple manufacturing process and low cost, the thin-film detector can also be used as a single-use water measuring agent, so that detecting whether the fuel or lubricant contains water can be as simple as detecting the chlorine content in the swimming pool.
In addition, the optical measurement and quantification method of electron transfer used by them, besides the determination of water molecules, also has potential applications for many other substances. Researchers are exploring how to use this method to determine the quantity of certain special metal ions and gases.
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