Schiff's reagent


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Schiff's reagent

 (shĭfs)
n.
An aqueous solution of a rosaniline dye and sulfurous acid used as a biological stain and in testing for the presence of aldehydes.

[After Hugo Schiff (1834-1915), German chemist.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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Then the root tips were stained with Schiff's reagent until the root tips become red.