Cov qauv twg yog qhov tsim nyog rau Rotary Vacuum Evaporation?
Mar 31, 2024
Tso lus
Rotary nqus evaporation, feem ntau ua tau siv arotary evaporator(rotovap), yog cov txheej txheem siv dav rau kev sib xyaw ua ke, kev ua kom huv, thiab kev sib cais ntawm ntau hom qauv, tshwj xeeb hauv chemistry, pharmaceuticals, biotechnology, thiab lwm yam kev tshawb fawb. Qhov tsim nyog ntawm cov qauv rau rotary nqus evaporation nyob ntawm lawv lub cev thiab cov khoom siv tshuaj.
Solvent-based Solutions
Organic kuab tshuaj xws li acetone, ethanol, methanol, chloroform, thiab dichloromethane yog ib txwm dissipated kom mloog zoo los yog decontaminate cov tebchaw tawg.
Cov kev daws teeb meem ntawm cov khoom siv, cov khoom sib xyaw ua ke, cov lus teb sib xyaw, extricates, thiab cov khoom nruab nrab tuaj yeem ua rau cais cov khoom xav tau lossis tshem tawm cov kuab paug uas tsis muaj kuab lom.
Ntuj Khoom Extracts
Cov nroj tsuag rho tawm, tshuaj ntsuab rho tawm, cov roj yam tseem ceeb, thiab kev npaj botanical feem ntau muaj cov khoom muaj txiaj ntsig bioactive uas tuaj yeem ua kom muaj zog lossis ua kom huv los ntawm evaporation hauv lub tshuab nqus tsev.
Rotary nqus evaporation feem ntau yog siv rau hauv kev tshawb fawb cov khoom ntuj, phytochemistry, thiab tshuaj ntsuab kom mloog zoo rau cov khoom xyaw ntxiv rau kev tsom xam lossis kev tsim.
Cov tshuaj tiv thaiv
Cov tshuaj tiv thaiv tshuaj sib xyaw, suav nrog cov tshuaj tiv thaiv hluavtaws, cov tshuaj tiv thaiv catalytic, thiab cov tshuaj tiv thaiv enzymatic, tuaj yeem raug rau lub tshuab nqus tsev vacuum kom tshem tawm cov kuab tshuaj, los ntawm cov khoom, lossis cov tshuaj reagents.
Qhov no ua rau muaj kev sib cais thiab ua kom huv ntawm cov khoom siv tshuaj tiv thaiv, cov khoom nruab nrab, lossis cov sib xyaw ua ke kawg ntawm kev txaus siab.
Polymer Solutions
Cov kev daws teeb meem polymer, suav nrog cov khoom siv polymer, cov nplaum, cov txheej, thiab cov khoom siv hluav taws xob uas yaj hauv cov kuab tshuaj, tuaj yeem ua kom muaj zog lossis ua kom huv los ntawm kev siv lub tshuab nqus tsev evaporation.
Cov txheej txheem no yog siv hauv polymer chemistry, cov ntaub ntawv tshawb fawb, thiab cov txheej txheem polymer kom tshem tawm cov kuab tshuaj thiab tswj cov khoom siv polymer.
Ntuj Samples
Aqueous kev npaj uas muaj cov organic macromolecules xws li cov proteins, peptides, nucleic acids, thiab polysaccharides tuaj yeem ua kom muaj zog lossis ua kom tsis zoo los ntawm kev ploj mus hauv qab lub tshuab nqus tsev.
Lub tshuab nqus tsev vacuum tsis tu ncua yog siv nyob rau hauv cov organic chemistry, atomic science, thiab biotechnology rau kev ntsuam xyuas, decontamination, thiab kuaj.
Thaum tshav kub kub-sensitive compounds
Thaum tshav kub kub-sensitive los yog thermolabile tebchaw uas degrade ntawm siab kub yuav ua tiav nyob rau hauv qis kub nyob rau hauv lub nqus tsev vacuum kom txo thermal degradation.
Rotary nqus evaporation tso cai rau maj mam evaporation ntawm qhov kub thiab txias, khaws cia kev ncaj ncees thiab kev ua ub no ntawm cov tebchaw rhiab heev.
High Boiling Point Compounds
Cov khoom sib xyaw nrog cov ntsiab lus kub kub lossis tsis tshua muaj hluav taws xob, xws li cov roj hnyav, waxes, thiab cov khoom hnyav, tuaj yeem ua kom zoo evaporated nyob rau hauv lub tshuab nqus tsev los pab kom muaj concentration lossis purification.
Zuag qhia tag nrho,rotary nqus evaporationyog cov txheej txheem ntau yam tsim nyog rau ntau hom qauv, suav nrog cov organic thiab aqueous daws, cov khoom ntuj, cov tshuaj tiv thaiv sib xyaw, polymers, cov qauv lom neeg, thiab cov khoom siv hluav taws xob kub. Kev xaiv kom raug ntawm evaporation tsis, suav nrog qhov kub thiab txias, qib nqus, thiab kev sib hloov ceev, yog qhov tseem ceeb kom ua tiav cov txiaj ntsig zoo thaum ua kom cov qauv kev ntseeg siab thiab cov khoom zoo.
Kuv tuaj yeem siv cov evaporator rotary rau ob qho tib si kua thiab cov qauv?
Yog lawm, cov evaporator teb tuaj yeem siv tau rau cov qauv ua kua thiab cov khoom siv, ua rau nws muaj ntau yam cuab yeej rau kev sib xyaw, kev ua kom huv, thiab kev sib cais ntawm ntau yam khoom siv hauv ntau yam kev tshawb fawb thiab kev siv tshuab. Ntawm no yog yuav ua li cas lub teb evaporator tuaj yeem ua haujlwm rau kev ua kua thiab cov khoom kuaj:
Cov Qauv Ua Kua: Ib lub tshuab evaporator feem ntau yog siv los ua kom pom tseeb, ua kom huv, lossis cais cov qauv ua kua los ntawm evaporating cov kuab tshuaj nyob rau hauv qhov txo qis thiab tswj qhov kub thiab txias. Piv txwv ntawm cov qauv ua kua uas tuaj yeem ua tiav siv cov evaporator rotary suav nrog:
Organic Solvent Solutions
Kev daws teeb meem ntawm cov kuab tshuaj organic uas muaj cov tshuaj yaj, xws li cov khoom siv ntuj tsim tawm, cov tshuaj tiv thaiv sib xyaw, thiab cov khoom sib xyaw ua ke, tuaj yeem ua kom muaj zog kom cais cov khoom xav tau.
Aqueous Solutions
Aqueous daws uas muaj ntsev, me me molecules, los yog lom macromolecules tuaj yeem ua tiav kom tshem tawm cov dej thiab mloog cov qauv.
Polymer Solutions
Cov kev daws teeb meem ntawm cov polymers hauv cov kuab tshuaj organic tuaj yeem ua kom muaj zog los tswj cov khoom siv polymer thiab tshem tawm cov kuab tshuaj.
Cov Qauv Khoom: Ntxiv rau cov qauv ua kua, cov evaporators teb tuaj yeem siv los ua cov qauv khoom siv los ntawm cov txheej txheem hu ua sublimation. Sublimation suav nrog kev hloov pauv ncaj qha ntawm cov khoom siv los ntawm nws cov theem khoom mus rau nws theem vapor yam tsis tau dhau los ntawm cov kua theem. Piv txwv ntawm cov qauv khoom uas tuaj yeem ua tiav siv cov evaporator rotary los ntawm sublimation suav nrog:
Subliming compounds
Qee cov tebchaw, xws li qee cov organic tebchaw thiab qee yam khoom tsis haum, tuaj yeem raug sublimed nyob rau hauv qhov txo qis thiab qhov kub siab kom tau txais cov khoom huv.
Desorption ntawm cov khoom
Qee cov khoom siv, xws li cov khoom siv adsorbent lossis cov khoom siv nrog cov khoom tsis haum, tuaj yeem raug desorption nyob rau hauv lub tshuab nqus tsev thiab tswj qhov kub thiab txias.
Hauv cov chaw sim me me, qhov kev ua tau zoo ntawm cov tshuab nqus tsev vacuum rotary tso cai rau kev ua cov kua thiab cov khoom kuaj. Cov qauv ua kua, xws li cov kuab tshuaj, feem ntau yog evaporated siv cov evaporators teb los mloog cov kev daws teeb meem lossis cais cov sib txuas uas xav tau. Cov txheej txheem cuam tshuam nrog cua sov cov kua hauv lub tshuab nqus tsev, ua rau nws evaporate thiab tawm hauv qab cov khoom muaj zog. Ntawm qhov tod tes, cov qauv khoom tuaj yeem ua tiav los ntawm cov txheej txheem hu ua hnyav extraction. Hauv txoj kev no, cov kuab tshuaj tsim nyog tau ntxiv rau cov qauv khoom, tso cai rau lub hom phiaj sib txuas kom yaj ua ntej yuav raug evaporation. Qhov kev hloov pauv no ua rau cov evaporators hloov pauv yam tsis tseem ceeb rau ntau yam kev tshawb fawb thiab kev siv tshuaj ntsuam xyuas hauv chav kuaj.
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Puas muaj cov qauv tshwj xeeb uas zoo tagnrho rau cov txheej txheem no?
Ob peb tus cwj pwm coj los txiav txim qhov tsim nyog raurotary nqus evaporation. Ua ntej, qhov volatility ntawm tus qauv plays lub luag haujlwm tseem ceeb. Cov qauv nrog cov volatility siab yuav evaporate yooj yim dua, ua kom yooj yim dua cov txheej txheem evaporation. Tsis tas li ntawd, kev sib raug zoo ntawm cov qauv nrog cov kuab tshuaj uas siv hauv cov evaporation teb yog qhov tseem ceeb. Cov qauv uas yaj zoo nyob rau hauv cov kuab tshuaj feem ntau siv nyob rau hauv cov chaw kuaj mob yog tsim nyog rau evaporation npaum. Tsis tas li ntawd, kev ruaj ntseg ntawm cov qauv hauv cov cua sov yog qhov tseem ceeb los xyuas kom meej tias nws tsis muaj cov tshuaj lom neeg tsis zoo los yog decomposition thaum lub sij hawm evaporation txheej txheem. Thaum kawg, qhov concentration ntawm cov hom phiaj sib txuas hauv cov qauv cuam tshuam rau kev ua haujlwm ntawm cov rotary evaporation. Cov qauv uas muaj ntau dua feem ntau xav tau lub sij hawm evaporation luv dua piv rau cov kev daws teeb meem ntau dua.
Cov qauv muaj pes tsawg leeg cuam tshuam li cas rau kev ua haujlwm ntawm evaporation?
Qhov muaj pes tsawg leeg ntawm cov qauv no cuam tshuam rau kev ua haujlwm ntawmrotary nqus evaporation. Cov qauv uas muaj cov feem ntau ntawm cov volatile Cheebtsam yuav evaporate sai dua, ua rau kom ceev evaporation tus nqi. Piv txwv li, cov qauv uas tsis tshua muaj volatility yuav xav tau lub sij hawm ntev evaporation kom ua tiav qib siab xav tau. Tsis tas li ntawd, muaj cov impurities los yog cov kab mob paug hauv cov qauv tuaj yeem cuam tshuam rau kev ua haujlwm ntawm evaporation. Cov impurities tuaj yeem hloov qhov kub kub los yog vapor siab ntawm tus qauv, ua rau kev sib txawv ntawm qhov xav tau evaporation tus cwj pwm. Ntxiv mus, cov tshuaj lom neeg ntawm tus qauv ua lub luag haujlwm tseem ceeb. Piv txwv li, cov qauv polar tuaj yeem cuam tshuam sib txawv nrog cov kuab tshuaj thiab cov khoom siv qhov chaw piv rau cov qauv uas tsis yog-polar, cuam tshuam rau evaporation efficiency. Zuag qhia tag nrho, kev nkag siab txog qhov muaj pes tsawg leeg ntawm cov qauv yog qhov tseem ceeb rau kev ua kom zoo dua cov tshuab nqus tsev vacuum rotary evaporation thiab ua tiav cov txiaj ntsig xav tau hauv cov ntawv thov kev sim.
Raws li peb delve tob rau hauv lub ntiaj teb no ntawmrotary nqus evaporation, nws dhau los ua pov thawj tias qhov tsim nyog ntawm cov qauv rau cov txheej txheem no cuam tshuam los ntawm ntau yam. Los ntawm volatility thiab muaj pes tsawg leeg mus rau stability thiab concentration ntawm cov qauv, txhua yam plays lub luag hauj lwm tseem ceeb hauv kev txiav txim siab efficiency thiab efficiency ntawm evaporation. Los ntawm kev ua tib zoo xav txog cov xwm txheej no thiab kho cov kev sim ua kom haum raws li, cov kws tshawb fawb tuaj yeem siv tag nrho cov peev txheej ntawm cov evaporators teb rau ntau yam kev siv hauv cov chaw sim me me.
Cov ntaub ntawv:
https://www.sigmaaldrich.com/technical-documents/articles/analytical/sample-preparation/rotary-evaporators.html
https://www.buchi.com/us-en/products/rotary-evaporation/
https://doi.org/10.1016/j.talanta.2008.06.011