• light
  • The plate is examined under ultraviolet light at a wavelength of maximum output at about 254 nm, then left in a chromatographic chamber containing some iodine crystals until spots appear. (who.int)
  • Hill worked on the properties of ultraviolet light, developing analytic methodology, and, in collaboration with her husband Carl McClellan Hill, developing ketene synthesis which supported the development of plastics. (wikipedia.org)
  • To take readings in the ultraviolet or visible range, a hydrogen or tungsten lamp was used, focusing light into the entrance slit. (wikipedia.org)