Li-solvents tsa lik'hemik'hale ke lintho tse qhibilihisang solute, tse hlahisang tharollo. Ba phetha karolo ea bohlokoa liindastering tse fapa-fapaneng, ho kopanyelletsa le meriana, lipente, liphahlo le lihlahisoa tsa ho hloekisa. Ho feto-fetoha ha metsoako ea metsoako ea lik'hemik'hale ho etsa hore e be tsa bohlokoa haholo libakeng tsa indasteri le tsa laboratori.
E 'ngoe ea mesebetsi e ka sehloohong ea li-solvents tsa lik'hemik'hale ke ho nolofatsa tšebetso ea lik'hemik'hale. Ka mohlala, indastering ea meriana, lihlapolli li sebelisoa ho ntša metsoako e sebetsang linthong tse tala, ho netefatsa hore meriana e sebetsa hantle ebile e bolokehile hore e ka sebelisoa. Li-solvents tse tloaelehileng lefapheng lena li kenyelletsa ethanol, methanol le acetone, e 'ngoe le e' ngoe e khethiloe bakeng sa bokhoni ba eona ba ho qhaqha metsoako e itseng.
Ka indasteri ea ho penta le ho roala, li-solvents tsa lik'hemik'hale li bohlokoa bakeng sa ho finyella ts'ebetso e lakatsehang le thepa ea kopo. Li thusa ho fokotsa lipente, ho etsa hore ho be bonolo ho sebetsa le linako tsa ho omisa kapele. Litlhapi tse kang toluene le xylene li sebelisoa khafetsa, empa metsoako ea tsona ea "volatile organic compound" (VOCs) e ka baka likotsi tsa tikoloho le bophelo bo botle. Ka lebaka leo, ho na le mokhoa o ntseng o hola o lebisang ho nts'etsopele ea li-low-VOC le li-solvents tse thehiloeng metsing.
Ho feta moo, metsoako ea lik'hemik'hale e bohlokoa haholo ho hloekiseng lihlahisoa, moo e thusang ho qhibilihisa mafura, oli le lintho tse ling tse silafatsang. Li-solvents tse kang joala ea isopropyl le ethyl acetate hangata li fumanoa ho lihloekisi tsa malapa le tsa indasteri, li etsa hore li atlehe ho boloka bohloeki le bohloeki.
Leha ho le joalo, tšebeliso ea metsoako ea lik’hemik’hale ha e na mathata. Litlhapi tse ngata tse tloaelehileng li kotsi, e leng se lebisang melaong e thata mabapi le tšebeliso ea tsona le ho lahla. Sena se khothalelitse bafuputsi le bahlahisi ho batla mekhoa e meng e sireletsehileng, joalo ka lihlapolli tse thehiloeng linthong tse phelang tse nkiloeng mehloling e ka nchafatsoang.
Qetellong, li-solvents tsa lik'hemik'hale ke likarolo tsa bohlokoa liindastering tse fapa-fapaneng, tse nolofatsang lits'ebetso tse tlohang ho etsoa ha lithethefatsi ho ea ho hloekisa holim'a metsi. Ha tlhokahalo ea likhetho tse sireletsehileng le tse tšoarellang e ntse e hola, bokamoso ba lihlapolli tsa lik'hemik'hale bo tla bona lits'ebetso tsa bohlokoa tse reretsoeng ho fokotsa tšusumetso ea tikoloho ha li ntse li boloka ts'ebetso.
Nako ea poso: Jan-07-2025