Ethidium Bromide or “EtBr” is a flourescent nucleic acid tag commonly used in molecular biology laboratories to detect DNA and RNA. When exposed to UV light EtBr will fluoresce with a orange/red colour, this fluorescence will intensify 20-fold once bound to DNA. Although no confirming scientific studies on the subject, Ethidium Bromide is feared to be toxic due to the way it insets itself in DNA. UV lamps are used to check laboratory areas such as benches and floors have been cleaned thoroughly leaving no traces of EtBr.
Ethidium Bromide can be excited by either mid-range or long-wave UV light however if you are purchasing a lamp especially for this application, you may want to consider the UVL-26P rechargeable lamp which is completely portable once charged up; this can be handy if you need to get close to the floor, as it negates the need for extension leads etc. It also features 2 x 6-watt 365nm UV Tubes, which can either be used separately or at the same time, to give an extra intensity boost.
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