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Related to indophenol: indophenol method, indophenol oxidase


 (ĭn′dō-fē′nôl, -nōl, -nŏl)
Any of various synthetic blue or green dyes.

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.


1. (Pharmacology) a derivative of quinonimine. Formula: HOC6H4NC6H4O
2. (Dyeing) any of a class of derivatives of this compound, esp one of the blue or green dyes that are used for wool and cotton
[C19: from indigo + phenol]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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References in periodicals archive ?
The ascorbic acid concentration (vitamin C) was determined by the Tillmans method, which is based on the reduction of 2.6-dichlorophenol sodium indophenol (DCFI) by ascorbic acid, according to Benassi and Antunes (1988).
Urease (EC activity was measured by the indophenol colourimetric method, and illustrated by the amount of N[H.sub.3]-N (mg) produced from 1 g soil after being cultured at 37[degrees]C for 24 h (Huang et al.
The N-N[H4.sup.+] and N-N[O2.sup.-] levels were measured weekly with indophenol blue and sulphanilamide methods, respectively.
100 [mL.sup.-1] (IAL, 2008); and ascorbic acid according to the Tillmans method (2.6 dichlorophenol indophenol) and the results expressed as mg ascorbic acid.
Ammonia was analyzed using the indophenol reaction noted by Cheney and Marbach [14].
The dye solution was prepared by dissolving 0.5 g 2, 6-dichlorophenol indophenol and 0.42 g sodium bicarbonate in 200 ml hot distilled water.
The 4-hydroxylation of aniline hydrochloride results in the formation of 4-aminophenol, which is determined spectorphotometrically by indophenol reaction.
Kiyota, "Estimation of L-glutaminase and L-asparaginase activities in soils by the indophenol method," Soil Science and Plant Nutrition, vol.
The water quality of the culture tanks was monitored by regular observations of the following variables: (1) pH (pH meter mPA210 - MS Tecnopon), (2) temperature and specific conductance at 0900 and 1500 (conductivity meter CD-4303-Lutron), (3) dissolved oxygen (0800; dissolved oxygen meter YSI 55), (4) total ammonia nitrogen (TAN; indophenol method), (5) nitrite (sulfanilamide method), (6) free C[O.sub.2] (titration with standard [Na.sub.2]C[O.sub.3] solution), (7) reactive phosphorus (molybdenum blue method), (8) total alkalinity (titration with [H.sub.2]S[O.sub.4] standard solution), (9) total hardness (titration with EDTA standard solution), (10) soluble iron (colorimetric Herapath method) and (11) total dissolved sulfide (titration with standard [Na.sub.2][S.sub.2][O.sub.3] solution).