Qee lub sij hawm dhau los, Tebchaws Asmeskas "Wall Street Journal" tau tshaj tawm tias qhov tshwm sim ntawm cov tshuaj tiv thaiv tab tom ntsib lub raj mis: qhov tsis txaus ntawm cov iav vials rau khaws cia thiab iav tshwj xeeb raws li cov khoom siv raw yuav cuam tshuam kev tsim khoom loj. Yog li no lub khob me me no puas muaj cov ntsiab lus kev cob qhia?
Raws li cov khoom ntim uas ncaj qha mus rau cov tshuaj, cov tshuaj iav fwj tau siv dav hauv cov khoom ntim tshuaj vim lawv qhov kev ua haujlwm ruaj khov, xws li vials, ampoules, thiab infusion iav fwj.
Txij li thaum cov iav fwj tshuaj muaj nyob rau hauv kev sib cuag nrog cov tshuaj, thiab qee qhov yuav tsum tau khaws cia rau lub sijhawm ntev, kev sib raug zoo ntawm cov tshuaj iav fwj nrog cov tshuaj muaj feem cuam tshuam ncaj qha rau cov tshuaj zoo, thiab muaj kev noj qab haus huv thiab kev nyab xeeb ntawm tus kheej.
Cov txheej txheem tsim lub raj mis iav, tsis saib xyuas hauv kev sim thiab lwm yam laj thawj tau ua rau qee qhov teeb meem hauv kev lag luam ntim tshuaj hauv xyoo tas los no. Piv txwv li:
Cov kua qaub tsis zoo thiab alkali tsis kam: Piv nrog rau lwm cov khoom ntim, iav kuj tsis muaj zog hauv cov kua qaub, tshwj xeeb tshaj yog alkali tsis kam. Thaum lub khob tsis zoo, lossis cov khoom tsim nyog tsis raug xaiv, nws yog ib qho yooj yim ua rau muaj kev phom sij rau cov tshuaj zoo thiab txawm tias kev noj qab haus huv ntawm cov neeg mob. .
Cov txheej txheem ntau lawm muaj qhov sib txawv ntawm qhov zoo ntawm cov khoom iav: iav ntim ntim feem ntau yog tsim los ntawm molding thiab tswj cov txheej txheem. Cov txheej txheem ntau lawm muaj kev cuam tshuam ntau dua rau qhov zoo ntawm cov iav, tshwj xeeb tshaj yog nyob rau hauv qhov tsis kam ntawm sab hauv. Yog li ntawd, ntxiv dag zog rau kev soj ntsuam xyuas thiab cov qauv rau kev ua tau zoo ntawm iav lub raj mis cov ntaub ntawv ntim tshuaj muaj qhov cuam tshuam tseem ceeb ntawm kev ntim tshuaj zoo thiab kev txhim kho kev lag luam.
Cov khoom xyaw tseem ceeb ntawm cov iav fwj
Cov iav fwj tshuaj ntim cov ntaub ntawv feem ntau muaj silicon dioxide, boron trioxide, aluminium oxide, sodium oxide, magnesium oxide, potassium oxide, calcium oxide thiab lwm yam khoom xyaw.
Dab tsi yog cov teeb meem nrog iav fwj
· Cov nag lossis daus ntawm cov piv txwv ntawm alkali hlau (K, Na) nyob rau hauv iav ua rau kom nce pH tus nqi ntawm kev lag luam kws tshuaj.
· Cov iav tsis zoo los yog ntev yaig los ntawm cov kua alkaline tuaj yeem ua rau tev tawm: iav tev tuaj yeem thaiv cov hlab ntsha thiab ua rau mob thrombosis lossis pulmonary granulomas.
· Kev nag lossis daus ntawm cov khoom tsis zoo hauv iav: cov khoom tsis zoo yuav muaj nyob rau hauv cov iav ntau lawm
· Aluminium ions precipitated hauv iav muaj kev cuam tshuam tsis zoo rau cov kab mob lom
Kev tshuaj ntsuam xyuas electron microscopy feem ntau saib xyuas qhov yaig thiab tev ntawm sab hauv ntawm lub raj mis iav, thiab tseem tuaj yeem txheeb xyuas cov kua tshuaj lim dej. Peb siv Feiner desktop scanning electron microscope los soj ntsuam qhov chaw ntawm lub khob iav, raws li pom hauv daim duab 1. Daim duab sab laug qhia tau hais tias sab hauv ntawm lub khob iav corroded los ntawm cov kua tshuaj, thiab daim duab sab xis qhia tau hais tias sab hauv ntawm lub raj mis. iav lub raj mis nrog lub sijhawm yaig ntev. Cov kua reacts nrog lub khob iav, thiab lub puab nto yog corroded. Lub sij hawm ntev corrosion yuav ua rau thaj tsam loj ntawm chipping. Thaum cov tshuaj kho mob tom qab cov tshuaj tiv thaiv no tau txhaj rau hauv tus neeg mob lub cev, nws yuav muaj kev cuam tshuam tsis zoo rau tus neeg mob txoj kev noj qab haus huv.
Post lub sij hawm: Nov-03-2021