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n.1.(Chem.) The hypothetical radical of picric acid, analogous to phenyl.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Anti-oxidative activities of fermented soy milk: Soybean varieties were investigated for antioxidant activity including Diphenyl picryl hydrazyl (DPPH) and 2,2-azinobis-3-ethylbenzothiazoline-6-sulphonate (ABTS) assay.
Water - CC via Picryl CAIRO -- 15 May 2019: As weather experts warned of a heat wave hitting the country, raising the temperature degrees to highs of 40AC and 42AC on Wednesday and Thursday, citizens are advised to avoid heat-related illness during the fasting hours of Ramadan.
Advice from Divorce Lawyers in the UAE Image Credit: Picryl
DPPH is a stable free radical with absorption at 570nm, exhibits a deep purple color in methanol solution which gets reduced to a yellow colored product diphenyl picryl hydrazine [31].
The antioxidant capacity was determined by ferric ion reducing antioxidant power method (FRAP) and DPPH (2, 2-diphenyl-1 picryl hydrazyl) free radical scavenging method by spectrophotometry.
Atranorin has also shown to possess remarkable antioxidant activity by inhibiting lipid peroxidation [53] and acting as a superoxide [54] and free radical diphenyl picryl hydrazyl (DPP[H.sup.*]) scavenger [55].
Crude metabolites of Aspergillus terreus (JAS-2) was evaluated for antioxidant assay by using DPPH (2, 2-diphyenyl 2 picryl hydrazyl) free radical scavenging method [14].
The antioxidant compounds react with the radical and convert to picryl hydrazine from as evidenced through discoloration (from purple to yellow).
Examples of such reactive, haptenic compounds that frequently lead to sensitization after dermal contact or inhalation are toluene diisocyanate, trimellitic anhydride, phthalic anhydride, benzoquinone, formaldehyde, ethylene oxide, dinitrochlorobenzene, picryl chloride, penicillins, and D-penicillinamine.
In his "Anaphylaxis Experiments," he reported skin sensitization in guinea pigs after treatment with picryl chloride and 2,4-dinitrochlorobenzene (DNCB).