Polyvinylpyrrolidone PVP

Daim ntawv thov ntawm Polyvinylpyrrolidone pvp hauv tshuaj thiab kev noj qab haus huv:

PVP muaj keeb kwm ntev tshaj plaws ntawm kev siv tshuaj thiab kev noj qab haus huv, thiab nws yog nyob deb ntawm qhov kev siv dav tshaj plaws. PVP cov khoom siv los ua cov ntshav plasma solubilizer thaum Ntiaj Teb Tsov Rog II yog "Periston". Nws yog ib qho isotonic saline muaj li ntawm 3.5 feem pua ​​PVP. Nws muaj qhov cuam tshuam loj rau kev poob siab los ntawm kev mob ntshav siab loj lossis kub hnyiab, thiab tsis muaj dab tsi cuam tshuam nrog cov ntshav ntawm cov neeg tau txais.

Txoj kev npaj ntawm "Periston" yog raws li nram no:

Ntxiv 20 feem pua ​​​​PVP tov (hloov) rau 70L ntawm distilled dej ntawm 50 degree, ces ntxiv NaCl, KCl, CaCl₂·6H₂Aw, MgCl₂·6H₂O ua ntu zus kom yaj tag, yaj NaHCO₃hauv 6-7L ntawm cov dej distilled, thiab maj mam ntxiv rau 1mol/L hydrochloric acid, thaum lub bubbling (CO₂) nres, ntxiv cov tshuaj no rau kev daws ntawm PVP thiab hydrochloride, thiab tom qab ntawd dilute cov dej sib tov saum toj no nrog cov dej distilled rau kev npaj tshuaj nrog PVP concentration ntawm 3.5 feem pua, thiab thaum kawg Cov tshuaj npaj tau lim nrog lub tshuab lim dej kom tsis muaj menyuam thaum nws. kub (cov txheej txheem ua haujlwm thiab cov cuab yeej siv yuav tsum tau ua raws li cov neeg mob tsis muaj menyuam). Sterilize lub raj mis ntawm 105-120 degree thiab khaws cia ntawm 35 degree rau peb lub lis piam. Yog tias tsis muaj cov teeb meem raug tso tawm, nws tuaj yeem siv rau kev kho mob.

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