Na Malebela a Filtered Pipette a Thibela ho silafala ha sefapano le lifofane?

Ka laboratori, ho etsoa liqeto tse thata khafetsa ho fumana hore na ho ka etsoa liteko tse hlokolosi joang le ho etsa liteko. Ha nako e ntse e tsamaea, malebela a pipette a ikamahanya le li-lab ho pota lefatše mme a fana ka lisebelisoa hore litsebi le bo-rasaense ba be le bokhoni ba ho etsa lipatlisiso tsa bohlokoa. Sena ke 'nete haholo ha COVID-19 e ntse e tsoela pele ho nama ho pholletsa le United States. Li-Epidemiologists le li-virologists ba sebetsa bosiu le motšehare ho tla le kalafo ea vaerase. Malebela a hlatsoitsoeng a liphaephe a entsoeng ka polasetiki a sebelisetsoa ho ithuta vaerase mme liphaephe tsa khalase tse kileng tsa ba ngata haholo joale li boreleli ebile li iketsahalla. Kakaretso ea malebela a 10 a lipeipi tsa polasetiki a sebelisetsoa ho etsa tlhahlobo e le 'ngoe ea COVID-19 hajoale mme malebela a mangata a sebelisoang hajoale a na le sefahla ho tsona se lokelang ho thibela li-aerosol tse 100% le ho thibela tšilafalo ea sefapano ha o etsa mohlala. Empa malebela ana a theko e boima haholo le a theko e tlase tikolohong a hlile a thusa li-lab ho pholletsa le naha? Na li-labs li lokela ho nka qeto ea ho cheka sefahleho?

 

Ho ipapisitse le teko kapa teko e teng, lilaboratori le litsi tsa lipatlisiso li tla khetha ho sebelisa malebela a sa hlatsoang kapa a sefiloeng a pipette. Boholo ba li-lab bo sebelisa malebela a tlhotliloeng hobane ba lumela hore li-filtara li tla thibela li-aerosol tsohle ho silafatsa sampole. Mekhabiso e atisa ho bonoa e le mokhoa o bolokang chelete e ngata oa ho felisa lits'oants'o tse silafatsang sampoleng, empa ka bomalimabe ha ho joalo. Metlhotlo ea liphaephe tsa polyethylene pipette ha e thibele tšilafalo, empa e fokotsa feela ho ata ha litšila.

 

Sengoloa sa haufinyane sa Biotix se re, “[lentsoe] mokoallo ke poleloana e fosahetseng ho tse ling tsa likeletso tsena. Ke likeletso tse itseng feela tsa maemo a holimo tse fanang ka tšitiso ea 'nete ea ho tiisa. Lisefe tse ngata li fokotsa mokelikeli hore o se ke oa kena moqomong oa "pipette". " Boithuto bo ikemetseng bo entsoe ho shebiloe mekhoa e meng ea ho khetha metlhotlo le katleho ea eona ha e bapisoa le malebela a se seng a ho sefa. Sengoloa se phatlalalitsoeng ho Journal of Applied Microbiology, London (1999) se ithutile katleho ea malebela a sefahla sa polyethylene ha e kentsoe qetellong ea pulo ea ntlha ea pipette ha e bapisoa le malebela a sa sefiloeng. Har'a liteko tsa 2620, 20% ea lisampole e bonts'itse tšilafalo ea carryover ka nko ea pipettor ha ho ne ho sa sebelisoe filtara, mme 14% ea lisampole li ne li silafalitsoe ha ho ne ho sebelisoa ntlha ea sefaele ea polyethylene (PE) (Setšoantšo sa 2). Phuputso e boetse e fumane hore ha mokelikeli o nang le mahlaseli a kotsi kapa DNA ea plasmid e tšeloa ka lipompo ntle le sefahleho, tšilafalo ea moqomo oa pipettor e etsahetse nakong ea lipeipi tsa 100. Sena se bontša hore leha malebela a tlhotliloeng a fokotsa palo ea litšila ho tloha ntlheng e ngoe ho ea ho e 'ngoe, li sefa ha li emise tšilafalo ka botlalo.


Nako ea poso: Aug-24-2020