Sulfuric acid h2so4 95

Silver nitrate (AgNO₃), ABTS^•+ (2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)), sodium acetate trihydrate (CH₃COONa × 3H₂O), iron(III) chloride hexahydrate (FeCl₃ × 6H₂O), TPTZ (2,4,6-Tris(2-pyridyl)-s-triazine), TFPH (trifluoperazine hydrochloride), and Trolox (6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid) were purchased from Merck (Darmstadt, Germany); ethanol (96.3% v/v) was obtained from Stumbras, AB (Kaunas, Lithuania); potassium chloride (KCl) was obtained from Scharlau (Barcelona, Spain); potassium bisulfate (K₂S₂O₈) and DPPH^• (2,2-Diphenyl-1-(2,4,6-trinitrophenyl)hydrazin-1-yl) were obtained from Alfa Aesar GmbH & Co KG (Karlsruhe, Germany); sulfuric acid (H₂SO₄) 95% was purchased from Chempur (Piekary Śląskie, Poland). All chemicals used were of analytical grade.

Silver nitrate (AgNO₃), ABTS^•+ (2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)), sodium acetate trihydrate (CH₃COONa × 3H₂O), iron(III) chloride hexahydrate (FeCl₃ × 6H₂O), TPTZ (2,4,6-Tris(2-pyridyl)-s-triazine), TFPH (trifluoperazine hydrochloride), and Trolox (6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid were purchased from Merck (Darmstadt, Germany); ethanol (96.3% v/v) was obtained from Stumbras, AB (Kaunas, Lithuania); potassium chloride (KCl) was obtained from Scharlau (Barcelona, Spain); potassium bisulfate (K₂S₂O₈) and DPPH^• (2,2-Diphenyl-1-(2,4,6-trinitrophenyl)hydrazin-1-yl) were obtained from Alfa Aesar GmbH & Co KG (Karlsruhe, Germany); sulfuric acid (H₂SO₄, 95% was purchased from Chempur (Piekary Śląskie, Poland). All chemicals used were of analytical grade.