3,4,5,6-Tetrabromophenolsulfonephthalein CAS: 77172-72-6

3,4,5,6-Tetrabromophenolsulfonephthalein (TBPSPT) ke motsoako oa dae o sebelisoang e le sesupo k'hemistring ea tlhahlobo. Tšusumetso ea eona le ts'ebeliso ea eona li amana haholo le litšobotsi tsa eona tsa phetoho ea 'mala.

Hangata TBPSPT e sebediswa e le sesupo sa motheo wa asiti ka lebaka la bokgoni ba yona ba ho fetola mmala ho itshetlehile ka pH ya tharollo. Hangata e kgubedu maemong a pH e tlase (maemo a asiti) mme e mosehla maemong a pH e phahameng (maemo a motheo). Phetoho ena ya mmala e ka ba molemo ditshebedisong tse fapaneng, tse kang di-titrations le diqeto tsa pH, moo pheletso ya karabelo kapa asiti/alkalinity ya tharollo e hlokang ho lemohuwa.

Ho phaella moo, TBPSPT e sebelisitsoe lithutong tsa tlhokomelo ea tikoloho, haholo-holo bakeng sa ho lemoha mefuta ea oksijene e arabelang (ROS). Ha e pepesehetse ROS, joalo ka li-radical tsa hydroxyl kapa oksijene ea singlet, TBPSPT e fetoha 'mala, e leng se fanang ka pontšo e bonahalang ea boteng ba mefuta ena e arabelang.