ultraviolet illuminations造句

• Photography of the fluorescence produced by ultraviolet illumination uses visible wavelengths of light.
• Normally the polymer glows under ultraviolet illumination, but the fluorescence diminishes where a particle of the explosive adheres.
• The sample is then treated with a special dye which, under a microscope's ultraviolet illumination, makes surface layers glow distinctively according to their content.
• Under ultraviolet illumination, curium ( III ) ions exhibit strong and stable yellow-orange fluorescence with a maximum in the range about 590 640 nm depending on their environment.
• Most of this text was recovered in early 2009 by applying principal component analysis to the three color bands ( red, green, and blue ) of fluorescent light generated by ultraviolet illumination.
• Used at a 0.001 % concentration and allowed to stain a gel after electrophoresis for 30 minutes, it can detect as little as 16ng of DNA . Through use of a methyl orange counterstain and a more complex staining method, sensitivity can be improved further to 8 ng of DNA . When crystal violet is used as an alternative to fluorescent stains, it is not necessary to use ultraviolet illumination; this has made crystal violet popular as a means of avoiding UV-induced DNA destruction when performing DNA cloning " in vitro ".