D�termination spectrophotom�trique de l'analg�ne au moyen de chlorure de fer(III) et d'?,?'-dipyridyle

Effects of sponge-derived polybrominated diphenyl ethers on human cancer cell α-N-acetylgalactosaminidase and bacterial α-d-galactosidase and their antioxidant activity

“…The reduction process of Fe( iii ) ions was followed by an increase in the concentration of Fe( ii ) ions, which form a colored complex with α,α′-dipyridyl. 66 The iron-reducing activity of diphenyl ethers 1–3 containing two hydroxyl groups was lower than the activity of BHT by more than 2 times. The iron-reducing activity of the monohydroxylated diphenyl ethers 4–7 was an order of magnitude lower than that of the dihydroxylated diphenyl ethers 1–3 (Table 2).…”

“…The FRAP assay was adapted from previously described. 65,66 The reaction mixture (2 mL total volume) consisted of EtOH comparison of their spectroscopic data ( 1 H-, 13 C-NMR, HREI MS) with published values. [18][19][20][21]58 Reisolation of compounds 3-7 was described early.…”

“…The FRAP assay was adapted from previous studies. 65,66 The reaction mixture (2 mL total volume) consisted of EtOH solution of tested compounds (nal concentration 25, 50, 100, 200, and 300 mM), 100 mL of 0.1% solution of FeSO 4 $7H 2 O in H 2 O, 200 mL of 0.25% EtOH solution of a,a ′ -dipyridyl, and 50% aqueous EtOH to 2 mL of the total value. BHT was used as a reference compound.…”