. Biological stains, a handbook on the nature and uses of the dyes employed in the biological laboratory. Stains and staining (Microscopy). {Basic dyes; absorption maximum of spirit blue 2R about 581 in alcohol.) It is used in contrast to carmin in staining embryonic tissues; it brings out growing nerve fibers well. METHYL BLUE C. I. NO. 706 Synonyms: Cotton blue. Helvetia blue. NaSO, H I N. {An acid dye; absorption maximum about 607.) On account of the sulphonic groups, this dye is strongly acidic and makes a good counter-stain. It is used by Mann with eosin for staining nerve cells; an
. Biological stains, a handbook on the nature and uses of the dyes employed in the biological laboratory. Stains and staining (Microscopy). {Basic dyes; absorption maximum of spirit blue 2R about 581 in alcohol.) It is used in contrast to carmin in staining embryonic tissues; it brings out growing nerve fibers well. METHYL BLUE C. I. NO. 706 Synonyms: Cotton blue. Helvetia blue. NaSO, H I N. {An acid dye; absorption maximum about 607.) On account of the sulphonic groups, this dye is strongly acidic and makes a good counter-stain. It is used by Mann with eosin for staining nerve cells; and by Dubreuil, combined w4th picric acid, in contrast to a red nuclear stain such as carmin or safranin. ANiLiN BLUE, w. s. ( Water soluble) c. i. no. 707 Synonyms: China blue. Soluble blue 3M or 2R. Marine blue. Cotton blue. Water blue. Berlin blue. This dye is a mixture of the tri-sulphonates* of tri-phenyl para- rosanilin (C. I. 706) and of di-phenyl rosanilin. The latter is: •"The location of the sulphonic groups is uncertain. 72. 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; Ambler, Joseph Alfred, 1889-; Kornhauser, S. I. (Sidney Isaac), 1887-1959; Mallory, Frank Burr, 1862-1941; Sharp, Lester W. (Lester Whyland), b. 1887. Geneva, N. Y. , The Commission
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