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Blue Violet
The charming presentation of Blue violet laser pointer
People can always have wonderful time while getting a pleasant gadget. It would be also a wonderful thing to get the Vampire series blue violet laser pointer. Nobody can prevent the seducing of the blue-violet laser gadget when you have the chance to own. This charming blue violet color has a wavelength of 405 nm, which is quite rare to see in our daily lives and it is primarily used for entertainment.
As the result of the most advanced laser diode technology, the 405nm blue violet laser diode can finally developed and come into market and it should be the greatest wonderful of the whole laser diode technology.
With a power range available from 1mW to 100mW, these laser pens in general are used for presentation in the classroom, lectures, museums, gallery guides and entertainment venues such as bars, KTV, clubs, concert site and so on. Besides, this wonderful gadget is also a specially tool for money detector. Produced as a result of rigorous testing and high-standard requirement, the beam of 405nm diode laser is very bright and visible in the dark. Continuous power has made the laser diode make a brilliant display in all types of occasions.
It is always a very exciting time in possession of a blue-violet laser pointer. Whether for entertainment or practical use in our daily lives, this cool gadget is always necessary. Although it is possible for this gadget to make a continuous power, yet it is quite easy to burn out if the lighting is longer than 20-30 seconds. Careful use will ensure a long life of more than 8,000 hours, which is quite long if compared to the common 3000-5000 hours lifespan. It is just the genuine blue violet laser pointer with a visible beam of 300-8000 meters that is generally used for presentation in our daily lives.
Vampire series blue violet laser pointer can always bring people a lot of fun and joy. The attractive color of the laser diode has attracted a large group of laser lovers around the world and has widely spread among fans of the laser gadgets.
No matter for entertainment or practical use in our daily life, the Vampire series pointer blue violet laser has a wide application in the modern classroom, business conference, conferences, tours, etc. Meanwhile, this gadget is also widely used for presentation in entertainment venues such as bars, KTV, concert location, etc. There is never a person who is not intoxicated by the seductive presentation of this rare available laser pointer.
About the Author
Stella Mian is an honest lovers of various kinds of laser pointer, and it is the first time he saw such specail gadget - Vampire series blue violet laser pointer. This high temption laser gadget is really a wonderful tool for presentation.
Why would heating Biuret's solution and a large amount of protein cause a colour change from violet to blue?
A student heats a test tube containing a large amount of protein and Biuret reagent. She notices a colour change from violet to blue. Explain why heating causes a colour change.
Proteins are polypeptides that are composed of amino acids -- each amino acid is connected by a peptide bond.
Biuret's solution changes color (from blue to purple) in the presence of peptide bonds. A reverse reaction would indicate a lose of peptide bonds. Thus, the protein is being denatured.
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