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The UV lamps for water treatment consist of specialized low-pressure mercury-vapor lamps that produce ultraviolet radiation at 254 nm, or medium-pressure UV lamps that produce a polychromatic output from 200 nm to visible and infrared energy. The UV lamp never contacts the water; it is either housed in a quartz glass sleeve inside the water ...
A germicidal lamp (also known as disinfection lamp or sterilizer lamp) is an electric light that produces ultraviolet C (UVC) light. This short-wave ultraviolet light disrupts DNA base pairing , causing formation of pyrimidine dimers , and leads to the inactivation of bacteria , viruses , and protozoans .
Carbon arc lamps benefit from higher-intensity UV emission. However, they have the disadvantage of being generally weaker in intensity than similar xenon arc lamps. [ 1 ] In addition, they have a short lifetime, are unstable during operation and emit high-intensity blue light mismatched to the solar spectrum.
Luminol and haemoglobin, an example of chemiluminescence UV-photoluminescence in microbiological diagnostics. Luminescence is a spontaneous emission of radiation from an electronically or vibrationally excited species not in thermal equilibrium with its environment.
UV devices can be fitted into ceiling light fixtures and irradiate air, killing potentially infectious particulates, including 99.99 percent of airborne microbial and fungal contaminants. [15] UV light has previously been used to clean surface contaminants in sterile environments such as hospital operating rooms.
Science & Tech. Shopping. Sports. Weather. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. ... Aokitec Portable UV Lamp $4 Buy Now . Easkep UV LED Nail Lamp.
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