Serum ke limatlafatsi tsa bohlokoa moetlong oa lisele mme e bapala karolo ea bohlokoa ho ntlafatseng kholo ea lisele.Khetho eabotlolo ea serum e etsa qeto ea hore na serum e ka bolokoa hantle 'me ea bolokoa e septic.

Serum e bua ka mokelikeli o bonaletsang o mosehla o bobebe o arohaneng le plasma ka mor'a ho tlosoa ha fibrinogen le lintlha tse ling tsa coagulation ka mor'a ho kopana ha mali, kapa e bua ka plasma e tlositsoeng ho fibrinogen.Ka kakaretso, mocheso oa polokelo ke -5 ℃ ho -20 ℃.Hajoale, PET ke thepa ea mantlha ea libotlolo tsa serum 'marakeng.

Le hoja khalase e ka sebelisoa khafetsa, mokhoa oa eona oa ho hloekisa le ho thibela likokoana-hloko o batla o rarahane ebile o bonolo ho robeha.Ka hona, lisebelisoa tsa PET tse nang le melemo e hlakileng ea ts'ebetso butle-butle li fetoha khetho ea pele bakeng sa libotlolo tsa serum.Lisebelisoa tse tala tsa PET li na le litšobotsi tse latelang:

1. pepeneneng: Lintho tse bonahalang tsa PET li na le ponaletso e phahameng, li ka thibela leseli la ultraviolet, gloss e ntle, 'mele oa botlolo o bonaletsang o thusa haholoanyane ho bona matla a botlolo ea serum ka botlolong.

2. thepa ea mechine: matla a tšusumetso ea PET ke makhetlo a 3 ~ 5 a lifilimi tse ling, ho hanyetsa hantle ho phutha.

3. ho hanyetsa kutu: ho hanyetsa oli, ho hanyetsa mafura, ho hanyetsa acid, ho hanyetsa alkali, li-solvents tse ngata.

4. mocheso o tlase oa ho hanyetsa: mocheso oa PET embrittlement ke -70 ℃, ho -30 ℃ o ntse o e-na le boima bo itseng.

5. mokoallo: khase le mouoane oa metsi permeability e tlaase, ka bobeli khase e babatsehang, metsi, oli le monko o monate.

6. polokeho: e seng chefo, e sa latsoeheng, bophelo bo botle le polokeho, e ka sebelisoa ka kotloloho bakeng sa ho paka lijo.

Ho hanyetsa mocheso o tlase, pepeneneng le lithibelo tsa thepa ea PET li etsa hore e be thepa e tala e ntle bakeng sa tlhahiso ea botlolo ea serum.Pakeng tsa khalase le lisebelisoa tse peli tsa PET, litsi tsa lipatlisiso tsa mahlale, lik'hamphani tsa meriana le tsona li sekametse ho PET lisebelisoa tse tala.