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indophenol

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in·do·phen·ol  (nd-fnôl, -nl, -nl)
n.
Any of various synthetic blue or green dyes.


indophenol [ˌɪndəʊˈfiːnɒl]
n
1. (Medicine / Pharmacology) a derivative of quinonimine. Formula: HOC6H4NC6H4O
2. (Clothing, Personal Arts & Crafts / 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
[from indigo + phenol]


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]) was determined as ammoniac nitrogen by the indophenol blue method, and absorbance of the solution was measured by a spectrophotometer at 670 nm.
The L-ascorbic acid reduces the 2, 6-dichlorophenol indophenol (a blue coloured dye) to a colourless leuco-base The ascorbic acid is oxidised to dehydroascorbic acid.
 
 
 
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