Search results for: o-diphenols

• Removal of diphenols using pine biochar. Kinetics, equilibrium, thermodynamics, and mechanism of uptake

  Publication

  • N. F. Cimirro
  • E. C. Lima
  • M. R. Cunha
  • P. S. Thue
  • A. Grimm
  • G. S. dos Reis
  • N. Rabiee
  • M. Saeb
  • F. Keivanimehr
  • S. Habibzadeh

  - JOURNAL OF MOLECULAR LIQUIDS - Year 2022

  Thermal pyrolysis synthesized activated biochar from the Pinus elliottii sawdust (PS) at 600° C. The obtained activated biochar (PB600) was used for the removal of three diphenols, catechol (CAT), resorcinol (RES), and hydroquinone (HYD), which are utilized mainly in different industries. The PB600 was characterized by several analytical techniques. The BET surface area of 1473 m2.g−1 and a total pore volume of 0.707 cm3 g−1 was...

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• Study of pH and temperature effect on lipophilicity of catechol-containing antioxidants by reversed phase liquid chromatography

  Publication

  • C. Numviyimana
  • T. Chmiel
  • A. Kot-Wasik
  • J. Namieśnik

  - MICROCHEMICAL JOURNAL - Year 2019

  Lipophilicity of selected antioxidant phytochemicals, including flavonoids, phenolic acids and xanthonoids, was determined by reversed phase high performance liquid chromatography with UV detection (RP-HPLC-UV). The analyses run at different temperature and pH conditions in isocratic mode suggested that lipophilicity as distribution coefficient (logD) between aqueous and organic phase decreases with increasing temperature. For...

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