2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ob chav distillation Ob-distilled dej (abbreviated "ddH 2 O", "Bidest. water" los yog "DDW") yog npaj los ntawm slow boiling the tsis muaj kab mob condensed dej vapor los ntawm ib tug qeeb boiling.
txhais tau tias yog dej distilled?
Cov dej distilled yog purified ntawm distillation i.e boiling thiab ces condensation ntawm cov dej. Yog li, ob lub distilled dej muaj g dhau los ntawm cov txheej txheem ntawm distillation ob zaug. Thaum mQ dej tau deionised / demineralised thiab dhau los ntawm lim kom tshem tawm tag nrho cov ntaub ntawv lub neej lossis kho nrog UV-irradiation.
Vim li cas peb thiaj siv cov dej distilled?
- Ob chav dej distilled feem ntau siv hauv chav kuaj thaum ib qho dej distillation tsis muaj purity txaus rau qee cov ntawv thov kev tshawb fawb. - Thaum cov dej distilled txaus rau feem ntau cov tshuaj tiv thaiv, ib tug molecular biologist sim tsim kom tsis muaj menyuam, enzyme-dawb xov xwm yuav siv bidest.
Yuav ua li cas dej distilled hauv tsev?
txheej txheem ntawm distilling yog yooj yim. Kub kais dej mus rau qhov uas nws tig mus rau vapor. Thaum cov vapor condenses rov qab mus rau dej, nws tawm tom qab ib qho ntxhia residue. Lub resulting condensed kua yog distilled dej.
Dab tsi yog txheej txheem distillation?
Nyob rau hauv ob chav distillation, raws li cov kua nyob rau hauv lub tseem (lub ntxuav, uas yog muaj xws li dej, txog 8% cawv thiab congeners)boils, cawv thiab tsw congeners yuav cais ntawm dej, vaporise thiab taug kev mus rau qhov tseem mus rau hauv lub condenser uas lawv tau sau ua ntej distilled ib zaug ntxiv nyob rau hauv tus ntsuj plig …
Pom zoo:
Yuav tsum sib npaug sib npaug siab lossis qis?
A siab dua qhov sib npaug feem ntau qhia tias muaj kev pheej hmoo tsawg dua thiab muaj zog nyiaj txiag ntau dua li qhov qis dua. Yog tias lub tuam txhab qhov sib npaug sib npaug siab, nws yuav nyiaj ntau dua ntawm nws cov cuab tam nrog kev ncaj ncees thiab ib feem qis nrog cov nuj nqis.
Yuav ua li cas thiaj daws tau qhov sib npaug?
Zoo, txhawm rau hla lawv, koj muab tus lej hauv thawj feem thib ob tus lej ntawm tus lej thib ob, tom qab ntawd koj sau tus lej ntawd. Tom qab ntawd koj muab tus lej ntawm tus lej thib ob zaug tus lej hauv tus lej ntawm koj thawj feem, thiab koj sau tus lej ntawd.
Vim li cas thiaj daws tau qhov sib npaug sib txawv?
Differential Equations tuaj yeem piav qhia yuav ua li cas cov pej xeem hloov, qhov kub npaum li cas txav, cov springs vibrates li cas, cov khoom siv hluav taws xob zoo li cas thiab ntau ntxiv. Lawv yog ib txoj hauv kev zoo los piav ntau yam hauv lub qab ntuj khwb.
Txhua qhov kev sib npaug plaub npaug tuaj yeem daws tau los ntawm kev tsim?
Tsis yog txhua qhov kev sib npaug plaub npaug tuaj yeem ua tiavlossis tuaj yeem daws tau hauv lawv daim ntawv qub uas siv cov cuab yeej square. Hauv cov xwm txheej no, peb tuaj yeem siv lwm txoj hauv kev los daws qhov sib npaug plaub npaug. Puas yog txhua qhov kev sib npaug plaub npaug tuaj yeem daws tau los ntawm cov qauv quadratic?
Yuav tsum tau siv cov dej distilled hauv cov humidifiers?
Cov dej uas koj siv los sau koj lub tank tuaj yeem ua rau muaj teeb meem. Ob lub CPSC thiab EPA pom zoo kom sau koj cov av noo nrog cov dej distilled-tsis yog kais-rau khaws cov kab mob uas muaj feem cuam tshuam rau hauv huab cua uas koj ua pa.