2,4-dinitrophenylhydrazine

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2,4-dinitrophenylhydrazine

[¦tü ¦fȯr dī¦nī·trō‚fen·əl′hī·drə‚zēn]
(organic chemistry)
(NO2)2C6H3-NHNH2 A red, crystalline powder with a melting point of approximately 200°C; soluble in dilute inorganic acids; used as a reagent for determination of ketones and aldehydes.
References in periodicals archive ?
Aldehydes were collected with dinitrophenylhydrazine (DNPH) coated cartridges and analyzed using high-pressure liquid chromatography (HPLC) to provide speciated results for the aldehyde compounds.
Protein samples were mixed with 10 mM dinitrophenylhydrazine (DNPH) in 2N HC1, or in 2N HC1 without DNPH, at room temperature for l h with agitation every 15 min.
Aldehydes were separated by reversed-phase liquid chromatography after derivatization with dinitrophenylhydrazine, as previously described (Andreoli et al.
The solution was filtered and a few drops of 2,4 dinitrophenylhydrazine solution (Brady's reagent) was added and shaken.
They arrived at the scene at 11am and removed the dinitrophenylhydrazine from the building.
RCCs may be specifically evaluated, but their chemical reactivity may interfere with sample preparation, necessitating their stabilization as dinitrophenylhydrazine derivatives (11).
The determination of ascorbic acid in bile blood and urine through 2,4 dinitrophenylhydrazine derivatives of dehydroascorbic.