HEPES-Na Cas: 75277-39-3 4- (2 -Hydroxyethyl) -1 -piperazineethanesulfonic acid sodium ntsev 99% Dawb dawb ntws hmoov
| Catalog Number | XD90099 |
| Khoom npe | HEPES-Na |
| CAS | 75277-39-3 |
| Molecular Formula | C8H17N2NaO4S |
| Molecular Luj | 260.29 Nws |
| Cov ntaub ntawv khaws cia | Ambient |
| Harmonized tariff Code | 2933595 ib |
Khoom Specification
| Qhov tshwm sim | Dawb dawb ntws hmoov |
| Assay | ≥ 99% |
| Cia Temp | Khw hauv RT |
| Cov hlau hnyav | <0.0001% |
| pH | 9.5-10.5 Nws |
| Poob rau ziab | <4.0% |
| Pka (25 ° C) | 6.8-8.2 ib |
| A260, 1M Dej | <0.200 |
| A280, 1M Dej | <0.200 |
| Solubility 0.1M dej | Ntshiab, tsis muaj xim |
| A440, 1M dej | <0.200 |
Viral transport media (VTM) yog ib qho khoom noj khoom haus uas siv los nqa thiab tswj kev muaj peev xwm ntawm cov qauv (cov kab mob) mus rau lub chaw kuaj mob rau kev txheeb xyuas thiab ua cov qauv ntxiv.Kev thauj mus los rau cov kab mob yog qhov tseem ceeb tshwj xeeb vim tias lawv muaj labile ntau dua li lwm cov kab mob sib kis.
Nyob rau hauv niaj hnub microbiology thauj xov xwm yog ib qho tseem ceeb tshaj plaws uas siv rau hauv kev thauj cov qauv ntawm ib qho chaw mus rau lwm qhov.Rau kev soj ntsuam zoo, Cov qauv yuav tsum nyob rau hauv qhov chaw ruaj khov uas tsis muaj kev puas tsuaj rau cov kab mob lossis ib puag ncig.Cov xov xwm thauj mus los muaj ntau yam haujlwm nyob ntawm seb hom kab mob uas lawv siv rau, thiab lub sijhawm cov kab mob yuav tsum tau siv rau hauv nws.VTM yog ib qho khoom noj uas tsis yog khoom noj npaj siv cov xov xwm uas muaj ntau yam tshuaj tua kab mob thiab tshuaj tua kab mob los tiv thaiv kev loj hlob ntawm cov kab mob thiab cov kab mob.Cov kev sib xyaw no tuaj yeem ua rau cov qauv ruaj khov rau 2 mus rau 3 hnub nyob rau hauv ib txwm muaj mob thiab txawm tias lub tub yees tsis muaj.Txawm li cas los xij, cov qauv yuav tsum tsis txhob raug rau ib puag ncig huab cua.Cov xov xwm thauj mus los yog hu ua li ntawd vim tias lawv muaj cov khoom xyaw tshwj xeeb uas khaws cov khoom kuaj xyuas kom raug thauj mus rau qhov chaw ruaj khov thiab tiv thaiv kev puas tsuaj.
Raws li tau hais los saum toj no, VTM yog siv rau kev thauj mus los ntawm cov chaw kho mob thiab cov tshuaj tiv thaiv kab mob uas yuav tsum tau kuaj.Thaum lub sijhawm COVID-19 kis thoob qhov txhia chaw, VTM tau yog ib qho ntawm cov khoom siv dav dav thiab xav tau cov tshuaj sib tov.Lub qhov ntswg swabs raug coj los ntawm cov neeg mob CVID-19 tau txais kev cawmdim hauv VTM cov kev daws teeb meem kom muaj kev ruaj ntseg kom txog thaum qhov kev sim ua tiav.Raws li VTM tiv thaiv qhov kub thiab txias ntawm qhov degradation, ziab ntawm cov qauv, thiab tseem cuam tshuam kev loj hlob ntawm cov kab mob thiab cov fungi uas tuaj nrog cov qauv yog li nws yog ib qho tseem ceeb uas yuav tsum tau ua los ntawm WHO thiab CDC.
