This causes an absorption spectra, as shown below. Because the energy levels are the same, the lines in the emission spectra of an element are in the same position as the lines in the absorption ...

WE have recently been investigating the far ultra-violet absorption spectra of a number of organic compounds of the type R 1 COOR 2; R being an alkyl group or a hydrogen atom. It has been found ...

One of the best ways to help your body absorb plant-based iron is to accompany it with vitamin C. “Vitamin C has been shown to enhance the absorption of non-heme iron,” explains nutritional ...