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Physical Constants of Organic Compounds
Published in W. M. Haynes, David R. Lide, Thomas J. Bruno, CRC Handbook of Chemistry and Physics, 2016
W. M. Haynes, David R. Lide, Thomas J. Bruno
2,3-Dimethyl-2-pentene 2,4-Dimethyl-2-pentene cis-3,4-Dimethyl-2-pentene trans-3,4-Dimethyl-2-pentene cis-4,4-Dimethyl-2-pentene trans-4,4-Dimethyl-2-pentene 4,4-Dimethyl-1-pentyne 4,4-Dimethyl-2-pentyne Dimethylperoxide 2,9-Dimethyl-1,10-phenanthroline 3,4-Dimethylphenol phosphate (3:1) 5-(2,5-Dimethylphenoxy)-2,2dimethylpentanoic acid N-(2,4-Dimethylphenyl)acetamide 1-[(2,4-Dimethylphenyl)azo]2-naphthol 1-[(2,5-Dimethylphenyl)azo]2-naphthol 1-(2,4-Dimethylphenyl)ethanone 1-(2,5-Dimethylphenyl)ethanone 1-(3,4-Dimethylphenyl)ethanone 4,4-Dimethyl-1-phenyl-1penten-3-one 2,2-Dimethyl-1-phenyl-1propanone 3,5-Dimethyl-1-phenyl-1Hpyrazole 4,4-Dimethyl-1-phenyl-3pyrazolidinone N,N-Dimethyl--phenyl-2pyridinepropanamine 1,3-Dimethyl-3-phenyl-2,5pyrrolidinedione Dimethylphenylsilane N,N-Dimethyl-N'-phenylurea Dimethylphosphine Dimethylphosphinic acid Neocuproine
Microwave-assisted green synthesis, characterization, and antioxidant activity of silver nanoparticles using the aqueous extract of Cistus creticus
Published in Particulate Science and Technology, 2023
The total antioxidant capacity (TAC) of polyphenol-containing and real samples could be found using the CUPRAC assay (Apak et al. 2004; Puišo et al. 2014). This method makes use of Cu(II)–Cu(I) reduction in the presence of cuprous-selective ligand neocuproine, i.e., concomitant with the formation of the yellow–orange Cu(Nc)2+ chelate. One milliliter of each of the Cu(II), Nc, and NH4Ac buffer solutions was added into the test tube. Antioxidant sample (or standard) solution (x mL) and H2O [(1.1 − x) mL] were added to the initial mixture so that the final volume of the test tube was 4.1 mL. The tubes were stoppered, and after 1 h, the absorbance at 450 nm (A450) was recorded against a reagent blank. Following incubation of the reaction mixture at room temperature for half an hour, the absorbance (due to Cu(Nc)2+ formation) at a wavelength of 450 nm was measured against that of the reference solution. The cupric reducing antioxidant capacity (CUPRAC) was calculated based on the Trolox calibration curve and expressed as mM trolox/mg extract.
Selected fungi of the genus Lactarius - screening of antioxidant capacity, antimicrobial activity, and genotoxicity
Published in Journal of Toxicology and Environmental Health, Part A, 2022
Miroslava Stanković, Violeta Mitić, Vesna Stankov Jovanović, Marija Dimitrijević, Jelena Nikolić, Gordana Stojanović
The CUPRAC assay was performed using the method of Apak et al. (2008). The method is based upon the reduction of a cupric neocuproine complex (Cu(II)–Nc) by antioxidants to the cuprous form (Cu(I)–Nc). The CUPRAC method is capable of determining hydrophilic and lipophilic antioxidants. The examined mixture was left for 30 min at room temperature and after that, absorbance was measured at 450 nm. Trolox was used as a standard, and results were expressed as mg Trolox equivalents per g of dry weight (mg TE/g−DE).