. Biological stains; a handbook on the nature and uses of the dyes employed in the biological laboratory. Stains and staining (Microscopy); Stains and Staining; Dyes. 226 Biological Stains ^ Alizarin stains tissues a feeble yellowish red if used on them directly. In the presence of aluminium compounds intense red colors are formed; bluish violet in the presence of iron; and brown- ish violet in the presence of chromium. It has been used as a stain for nervous tissue and for the vital staining of protozoa. Geyer (1932) employs it to distinguish cows' from goats* milk. The chief present use of a
. Biological stains; a handbook on the nature and uses of the dyes employed in the biological laboratory. Stains and staining (Microscopy); Stains and Staining; Dyes. 226 Biological Stains ^ Alizarin stains tissues a feeble yellowish red if used on them directly. In the presence of aluminium compounds intense red colors are formed; bluish violet in the presence of iron; and brown- ish violet in the presence of chromium. It has been used as a stain for nervous tissue and for the vital staining of protozoa. Geyer (1932) employs it to distinguish cows' from goats* milk. The chief present use of alizarin, however, is as an indicator. H r N I I I I. o I O400 o I I I • I I I I I I X • I J 460 520 580 640 700 WAVELENGTH m }X Fig. 26. Spectral curve of alizarin red S. b5 alizarin red S C. I. NO. IO34 Synonyms: Alizarin red, water soluble. Alizarin Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Conn, H. J. (Harold Joel), 1886-1975. Geneva, N. Y. , Biotech Publications
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