Eklenme: Nov 21, 2008
Kimden: h4ck3rm1k3
Süre: 0:56
The James M. DuPont Meteorite Collection - chemical reactions involved, has made it possible to use the color developed as a specific indicator for the presence of a certain compound. With the development of color indices and standardization of the marketed dyes (Conn, 1953) many of the unpredictable results or uncertainties originating from the varied staining procedures have been eliminated. At present there are still some major gaps in the knowledge of the reaction mechanisms of several dyes and their exact specificity in several cases is not known; however, one is able to use them with a certain degree of confidence if one fulfills the following three criteria. (1) Use a whole array of structurally different dyes on the same substrate.
Tür: Education
Taglar: carbonaceous cyanobacteria fossils life meteorite
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