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Feulgen, Robert(1884–1955) German physiologist and chemist best known for his discovery of a selective staining technique for DNA, the Feulgen reaction, which is based upon the reaction of an aldehyde group with leucofuchsin. The intensity of the purple colour in the cell nucleus is used as a measure for the quantitative estimation of nuclear DNA.
Feulgen,Robert, German nucleic acid biochemist and cytochemist, 1884-1955, first to detect DNA in cells by a specific cytochemical test.
Feulgen reaction - DNA staining reaction.
Kasten fluorescent Feuglen stain - see under Kasten