Yuav Ua Li Cas Koj Siv Ib Kauj Ruam Rotovap
Jul 11, 2024
Tso lus
Nkag siab txog cov Cheebtsam ntawm Rotovap
Ua ntej dhia mus rau hauv cov lus qhia ib kauj ruam, nws yog ib qho tseem ceeb kom paub koj tus kheej nrog cov ntsiab lus tseem ceeb ntawm arotovap ua:
Rotating Flask:Tuav cov qauv thiab rotates kom qhov chaw saum npoo av kom evaporation.
Chav da dej: Ua kom sov cov qauv los txhawb evaporation.
Condenser:Txias cov vapor rov qab rau hauv cov kua, uas yog sau rau hauv lub khob tau txais.
Lub tshuab nqus tsev twj:Txo qhov siab kom txo qis qhov kub ntawm qhov hnyav.
Tau txais Flask:Sau cov condensed hnyav tom qab evaporation.
Yog tias koj paub cov khoom no, nws yuav yooj yim dua rau koj ua raws li cov lus qhia thiab xyuas kom txhua yam teeb tsa thiab ua haujlwm zoo.
Teeb tsa Rotovap
Npaj Cov Khoom Siv
Ua ntej, sau tag nrho cov khoom tsim nyog.
Qhov no suav nrog chav tsev evaporator teb, lub tshuab nqus tsev twj tso kua mis, lub tshuab cua sov da dej, thiab lub tshuab chiller lossis cua txias.
Xyuas kom tag nrho cov khoom xyaw huv si thiab ua haujlwm zoo.
Xyuas seb puas muaj qhov tawg lossis puas tsuaj, tshwj xeeb tshaj yog nyob rau hauv lub khob iav, vim qhov no tuaj yeem ua rau muaj kev sib tsoo lossis kev sib tsoo.
01
Sib dhos cov iav
Ua tib zoo sib sau ua ke cov iav. Pib los ntawm kev txuas lub rotating flask rau lubrotovap uachav tsev.
Ua kom ruaj khov tab sis maj mam kom tsis txhob tawg.
Txuas lub condenser mus rau lub hwj rotating, kom ntseeg tau tias lub foob kaw ntom nti. Txuas lub khob ntim rau hauv qab ntawm lub condenser kom sau cov kuab tshuaj evaporated.
02
Txuas lub Nqus Pump thiab Chiller
Txuas lub tshuab nqus tsev twj rau qhov chaw nres nkoj tsim nyog ntawm cov khoom. Xyuas kom txhua qhov kev sib txuas muaj kev ruaj ntseg kom tswj tau lub tshuab nqus tsev.
Txuas lub chiller rau lub condenser.
Qhov no yuav txias lub vapor thiab condense nws rov qab mus rau hauv ib tug kua.
Teem lub chiller rau qhov xav tau qhov kub thiab txias, feem ntau nyob ib puag ncig 0-10 degree, nyob ntawm qhov hnyav siv.
03
Sau lub rhaub dej kub
Sau lub cua sov da dej nrog dej los yog lwm yam dej cua sov tsim nyog.
Cov qib ntawm cov kua yuav tsum txaus kom submerge lub rotating flask tab sis tsis siab li ntawd nws overflows thaum lub hwj yog tso.
Teeb qhov kub ntawm lub cua sov da dej.
Rau feem ntau cov kuab tshuaj, qhov ntsuas kub ntawm 40-60 degree yog siv tau.
04
Xyuas qhov System
Ua ntej pib, xyuas tag nrho cov kab ke rau kev sib txuas los yog xoob.
Xyuas kom meej tias tag nrho cov Cheebtsam yog ruaj ntseg nyob rau hauv qhov chaw.
Qhib lub tshuab nqus tsev twj thiab chiller kom paub tseeb tias lawv ua haujlwm raug.
Thaum txhua yam tau lees paub tias ua haujlwm tau zoo, koj npaj txhij pib txheej txheem evaporation.
05
Kev ua haujlwm evaporation
Ntxig tus qauv
Ua tib zoo ncuav tus qauv mus rau hauv lub khob rotating.
Tsis txhob ntim lub raj mis ntau tshaj li ib nrab ntawm kev tiv thaiv kom tsis txhob nchuav thaum tig.
Yog tias cov qauv muaj cov khoom khib nyiab lossis cov khoom seem, nws raug nquahu kom lim lawv tawm ua ntej kom tsis txhob txhaws qhov system.
01
Kho lub nqus tsev vacuum
Tig lub tshuab nqus tsev twj tso kua mis thiab maj mam nce lub nqus tsev vacuum.
Lub hom phiaj yog txhawm rau txo qhov siab hauv lub khob, txo qis qhov kub ntawm qhov hnyav.
Ceev faj thiab ua kom lub tshuab nqus tsev maj mam kom tsis txhob muaj kev sib tsoo, uas tshwm sim thaum tus qauv boils hnyav.
02
Pib qhov kev sib hloov
Pib rotating lub hwj ntawm ib tug nruab nrab ceev.
Kev sib hloov ua kom cov cheeb tsam ntawm cov kua, txhawb kom evaporation sai dua.
Qhov zoo tshaj plaws ceev yuav nyob ntawm qhov viscosity ntawm tus qauv thiab qhov xav tau evaporation tus nqi.
Feem ntau, kev sib hloov ceev ntawm 100-150 rpm yog qhov zoo rau feem ntau cov qauv.
03
Kub tus qauv
Tig lub dab da dej kub thiab teem rau qhov xav tau kub.
Cov cua sov yuav ua kom cov txheej txheem evaporation.
Saib xyuas qhov kub thiab txias kom ntseeg tau tias nws nyob hauv qhov zoo tshaj plaws rau cov kuab tshuaj evaporated.
Kho cov chaw da dej cua sov yog tias tsim nyog.
04
Saib xyuas Condensation
Raws li cov kuab tshuaj evaporates, nws yuav mus los ntawm lub condenser thiab yuav txias rov qab mus rau hauv ib tug kua.
Xyuas kom meej tias lub chiller tswj qhov kub thiab txias kom ua tau zoo condensation.
Cov kuab tshuaj condensed yuav sau rau hauv lub khob tau txais.
Tshawb xyuas lub raj mis ib ntus txhawm rau saib xyuas tus nqi ntawm cov kuab tshuaj sau.
05
Ua kom tiav cov txheej txheem
Xaus evaporation
Thaum qhov xav tau ntawm cov kuab tshuaj tau evaporated, maj mam txo cov cua sov da dej kub thiab maj mam tig lub hwj.
Maj mam tso lub tshuab nqus tsev kom coj lub kaw lus rov qab rau atmospheric siab.
Qhov no yuav tsum ua tib zoo ua kom tsis txhob muaj kev hloov pauv sai sai uas tuaj yeem ua rau tawg lossis tawg.
Tshem tawm tus qauv
Ua tib zoo detach lub rotating flask ntawm lubrotovap uachav tsev.
Yog tias muaj cov kuab tshuaj nyob hauv lub khob, ncuav nws mus rau hauv lub thawv tsim nyog rau kev pov tseg lossis ua haujlwm ntxiv.
Ntxuav lub khob kom huv si ua ntej siv nws rau lwm tus qauv.
Sau cov Condensed Solvent
Hloov cov kuab tshuaj condensed los ntawm lub raj mis uas tau txais mus rau lub thawv ntim khoom tsim nyog.
Sau lub thawv nrog cov kuab tshuaj thiab cov ntaub ntawv tseem ceeb.
Pov tseg cov kuab tshuaj pov tseg raws li koj lub chaw kuaj xyuas kev nyab xeeb thiab ib puag ncig cov txheej txheem.
Ntxuav thiab khaws cov khoom siv
Tom qab siv, ntxuav tag nrho cov khoom ntawm cov khoom kom huv si.
Qhov no suav nrog lub rotating flask, condenser, txais lub hwj, thiab lwm qhov chaw uas tuaj rau hauv kev sib cuag nrog cov qauv lossis hnyav.
Kev txhawb nqa tus qauv yuav nthuav dav lub neej ntawm cov khoom siv kho vajtse thiab lav qhov kev ua tiav tiav.
Kev xav txog kev nyab xeeb
Siv cov cuab yeej tiv thaiv
Ib txwm hnav cov khoom tiv thaiv tus kheej tsim nyog (PPE) thaum ua haujlwm ntawm cov khoom.
Qhov no suav nrog looj tsom iav dub, hnab looj tes, thiab lub tsho tiv no.
Kev tuav cov kuab tshuaj thiab ua haujlwm hauv lub tshuab nqus tsev tuaj yeem nthuav tawm ntau yam kev phom sij, yog li nws tseem ceeb heev los tiv thaiv koj tus kheej.
Ua haujlwm nyob rau hauv ib qho chaw zoo-ventilated
Xyuas kom tseeb tias nws yog siv nyob rau hauv ib qho chaw zoo-ventilated los yog nyob rau hauv ib tug fume hood.
Cov kuab tshuaj evaporating tuaj yeem tso pa tawm uas tuaj yeem tsim kev puas tsuaj yog tias nqus tau.
Kev ua pa kom raug yuav pab kom txo tau qhov kev pheej hmoo no.
Ceev faj nrog cov tshuaj phom sij
Thaum ua haujlwm nrog cov kuab tshuaj txaus ntshai, ceev faj ntxiv.
Siv cov kev txwv thib ob txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm, nws muaj cov khoom siv yuav tsum muaj cov khoom siv thaum muaj xwm ceev thiab muaj cov khoom siv thaum muaj xwm ceev, thiab muaj cov khoom siv thaum muaj xwm txheej ceev xws li cov chaw siv tshuaj ntxuav qhov muag thiab cov tshuaj tua hluav taws uas yooj yim.
Ua raws li tag nrho cov ntaub ntawv kev nyab xeeb (SDS) cov lus qhia rau cov kuab tshuaj siv.
Troubleshooting Common Issues
Pob
Kev sib tsoo tuaj yeem yog qhov teeb meem tshwm sim thaum siv arotovap ua. Nws tshwm sim thaum tus qauv boils sai heev, ua rau nws tawg los yog pob. Txhawm rau tiv thaiv kev sib tsoo, maj mam nce lub tshuab nqus tsev thiab kub. Koj tuaj yeem ntxiv cov pob zeb kub npau npau los yog tus neeg sawv cev tiv thaiv rau cov qauv.
Lub tshuab nqus tsev tsis zoo
Yog tias lub tshuab nqus tsev twj tso kua mis tsis ua haujlwm zoo, xyuas seb cov dej xau hauv qhov system. Xyuas kom tag nrho cov kev sib txuas muaj kev ruaj ntseg thiab cov ntsaws ruaj ruaj thiab gaskets nyob rau hauv zoo. Yog tias lub tshuab nqus tsev twj qub qub lossis ua haujlwm tsis zoo, nws yuav tsum tau muab kev pabcuam lossis hloov.
Inefficient Condensation
Yog hais tias cov kuab tshuaj tsis condensing zoo, xyuas qhov kub thiab txias ntawm lub chiller. Xyuas kom meej tias cov kua dej txias yog circulating zoo thiab lub condenser yog tsis muaj blockages. Kho cov chiller nqis raws li xav tau kom tswj tau qhov ua kom zoo.
Slow Evaporation Rate
Yog tias tus nqi evaporation qeeb dua li qhov xav tau, xyuas kom tseeb tias cov chav da dej cua sov thiab lub tshuab nqus tsev yog qhov tseeb. Xyuas kom meej tias tus qauv yog tig ntawm qhov tsim nyog ceev. Yog hais tias tus qauv yog viscous heev, xav txog preheating nws me ntsis kom txo viscosity thiab txhim kho evaporation.
Daim ntawv thov ntawm Rotary Evaporators hauv Me Me Laboratories
Sample Concentration
Revolving evaporators feem ntau yog siv rau kev ntsuas kev ntsuas los ntawm kev tshem tawm overabundance dissolvable. Qhov no yog qhov tshwj xeeb tshaj yog muaj txiaj ntsig hauv kev npaj kev tshawb fawb, qhov twg yuav tsum tau npaj tshwj xeeb rau kev xeem ntxiv lossis cov lus teb.
Solvent Recovery
Cov kuab tshuaj tuaj yeem rov qab tau thiab siv dua hauv ntau cov txheej txheem kuaj. Cov khoom lag luam zoo cais cov qauv ntawm cov kuab tshuaj, ua kom nws tuaj yeem sau thiab rov siv cov qauv. Qhov no txo cov pov tseg thiab txo cov nqi ntawm kev yuav cov kuab tshuaj tshiab.
Purification ntawm Compounds
Rotary evaporators kuj tseem siv rau purifying tebchaw los ntawm kev tshem tawm impurities uas yog soluble hauv cov kuab tshuaj. Thaum siab purity yuav tsum tau, qhov no yog tshwj xeeb tshaj yog pab tau nyob rau hauv cov organic synthesis thiab natural khoom cais.
Crystallization
Cov khoom tuaj yeem siv tau kom tau txais cov kuab tshuaj los ntawm cov kuab tshuaj mus rau crystallize los ntawm kev ua tib zoo tswj cov txheej txheem evaporation. High-immaculateness glasslike mixs tuaj yeem tsim nrog cov txheej txheem pab tau zoo hauv kev lag luam tshuaj.
Xaus
Los ntawm kev teeb tsa cov cuab yeej los ua kom tiav cov evaporation thiab qhwv cov txheej txheem, kev siv lub tshuab hluav taws xob rotary hauv chav kuaj me me yuav tsum muaj cov kauj ruam tshwj xeeb.
Koj tuaj yeem ua tiav cov txiaj ntsig zoo thiab muaj txiaj ntsig zoo rau kev ua kom muaj txiaj ntsig ntawm kev siv los ntawm kev ua raws li cov cai no thiab cov kev coj ua zoo tshaj plaws.
Txhawm rau kom tau txais txiaj ntsig ntau ntawm kev siv arotovap ua, Nws yog ib qho tseem ceeb kom paub siv cov khoom siv, cov cuab yeej siv, thiab yuav ua li cas kom lub chaw ua hauj lwm muaj kev nyab xeeb.