White Ribbon : Meaning: This color is a symbol of innocence, victims of terrorism, violence against women, peace, right to life, bone cancer, adoptees, and retinal blastoma Pearl Ribbon : Meaning: This color is a symbol for emphysema, lung cancer, mesothelioma, and multiple sclerosis
From Wikipedia, the free encyclopedia. Schematic of an electron capture detector for a gas chromatograph with a 63 Ni source. An electron capture detector (ECD) is a device for detecting atoms and molecules in a gas through the attachment of electrons via electron capture ionization. The device was invented in 1957 by James Lovelock and is used in gas chromatography to detect trace amounts of chemical compounds in a sample.
The scanning electron microscope is a microscope that works by shooting beams of electrons at an item and recording the emissions of the electrons. One advantage of this microscope is it has much better magnification than other microscopes; to be exact it can reach rates of magnification up to 10,000 times.