Kuv Yuav Pib Rotovap li cas?
Apr 15, 2024
Tso lus
Pib aTeb evaporator (rotovap)koom nrog ob peb kauj ruam los ua kom muaj kev nyab xeeb thiab ua haujlwm tau zoo.
Kev teeb tsa:Xyuas kom meej tias lub rotary evaporator raug teeb tsa kom raug rau ntawm qhov chaw ruaj khov thiab theem. Txuas cov tubing tsim nyog thiab cov khoom siv iav raws li cov chaw tsim khoom cov lus qhia.
Hwj chim On:Qhib lub ntsiab fais fab hloov ntawm lub rotovap. Qee cov qauv yuav muaj cov keyboards cais rau lub rhaub dej da dej thiab lub cav sib hloov.
Sau lub rhaub dej kub:Sau lub cua sov da dej nrog cov kuab tshuaj uas tsim nyog los yog cov kua cua sov. Xyuas kom tseeb tias lub da dej tau ntim rau qib pom zoo los npog cov cua sov coils lossis da dej saum npoo.
Npaj tus qauv:Muab tus qauv lub hwj uas muaj cov kua ua kom muaj zog los yog ua kom huv mus rau hauv chav dej kub. Ruaj nws nyob rau hauv qhov chaw siv cov clamps tsim nyog los yog tuav.
Teeb Parameters:Teem cov yam tsis xav tau ntawm cov tswj vaj huam sib luag ntawm rotovap. Qhov no suav nrog kev sib hloov ceev ntawm lub raj mis, qhov kub thiab txias ntawm chav da dej sov, thiab lub tshuab nqus tsev.
Pib Rotation:Ua kom lub cev muaj zog tig kom pib tig lub khob cawv. Maj mam nce qhov kev sib hloov ceev mus rau qib xav tau kom ua tau zoo evaporation.
Thov Vacuum:Yog xav tau lub tshuab nqus tsev distillation, tig lub tshuab nqus tsev twj tso kua mis thiab maj mam kho lub nqus tsev mus rau qhov xav tau. Saib xyuas lub ntsuas ntsuas kom paub meej tias lub tshuab nqus tsev zoo.
Kub da dej:Teem lub cua sov da dej rau qhov xav tau qhov kub thiab txias siv qhov ntsuas kub tswj. Cia lub sij hawm txaus rau da dej kom ncav cuag qhov kub thiab txias ua ntej yuav mus.
Saib xyuas kev ua haujlwm:Thaum lub sijhawm ua haujlwm, saib xyuas cov txheej txheem evaporation, qhov kub thiab txias, kev sib hloov ceev, thiab lub tshuab nqus tsev tsis tu ncua. Ua ib qho kev hloov kho uas tsim nyog los tswj cov xwm txheej zoo rau evaporation.
Sau Distillate:Raws li cov qauv evaporates, cov vapors yuav condense nyob rau hauv lub condenser thiab sau nyob rau hauv lub txais lub hwj. Saib xyuas qhov ntim thiab purity ntawm cov distillate sau thaum cov txheej txheem txuas ntxiv mus.
Kev kaw:Thaum qhov xav tau concentration lossis purification tiav, ua tib zoo nres lub cav sib hloov thiab cov cua sov da dej. Tua lub tshuab nqus tsev twj tso kua mis thiab cia lub kaw lus kom txias ua ntej disassemble los yog tu.
Kev Tiv Thaiv Kev Nyab Xeeb:Yuav tsum ua raws li kev ceev faj txog kev nyab xeeb thaum ua haujlwm lub tshuab hluav taws xob tig, suav nrog hnav cov khoom tiv thaiv tus kheej tsim nyog (PPE) xws li hnab looj tes thiab tsom iav kev nyab xeeb.
Nws yog ib qho tseem ceeb kom paub koj tus kheej nrog cov lus qhia tshwj xeeb uas muab los ntawm cov chaw tsim khoom ntawm koj tus qauv rotovap, vim cov txheej txheem yuav txawv me ntsis ntawm cov qauv sib txawv. Tsis tas li ntawd, xyuas kom meej tias koj tau txais kev cob qhia thiab muaj peev xwm ua haujlwm ntawm cov cuab yeej siv tau zoo ua ntej pib ua haujlwm.
Kev nkag siablub Rotovap
Ua ntej delving rau hauv cov txheej txheem ua haujlwm, nws yog ib qho tseem ceeb kom nkag siab cov ntsiab lus ntawm cov evaporator teb. Kuj tseem hu ua rotovap, cov cuab yeej no txhawb nqa cov evaporation ntawm cov kuab tshuaj los ntawm cov qauv hauv qab kev txo qis, ua kom muaj kev sib cais ntawm cov sib xyaw ua ke nrog kev raug.
Ua ke nrog lub khob tig thiab lub rhaub dej da dej, rotovap ua kom cov txheej txheem distillation, ua rau nws zoo tagnrho rau kev sim me me.
Kev npajlub Rotovap
Kev npaj kom raug yog qhov tseem ceeb rau kev ua tiav ntawm rotovap. Pib los ntawm kev ua kom tag nrho cov khoom tsim nyog yog huv si thiab tsis muaj qhov seem ntawm qhov kev sim dhau los. Tshawb xyuas lub khob iav rau cov kab nrib pleb lossis qhov tsis zoo uas tuaj yeem cuam tshuam qhov ncaj ncees ntawm cov txheej txheem distillation. Tsis tas li ntawd, xyuas kom meej tias cov dej da dej tau ntim rau hauv qhov tsim nyog thiab tias lub condenser yog ruaj khov.
Kev nyab xeebCov kev ceev faj
Ua ntej pib lub rotovap, nws yog ib qho tsim nyog yuav tsum tau ua qhov tseem ceeb ntawm kev nyab xeeb. Paub koj tus kheej nrog cov txheej txheem kaw thaum muaj xwm txheej ceev thiab xyuas kom lub chaw ua haujlwm tau zoo-ventilated los tiv thaiv kev tsim cov pa taws uas tsim kev puas tsuaj. Cov cuab yeej tiv thaiv tus kheej, suav nrog tsom iav thiab hnab looj tes, yuav tsum hnav txhua lub sijhawm thaum ua haujlwm kom txo tau qhov kev pheej hmoo ntawm kev raug tshuaj lom neeg.
Lub zog ntawm Rotovap
Nrog kev ceev faj txog kev nyab xeeb nyob rau hauv qhov chaw thiab cov cuab yeej tau npaj kom txaus, nws yog lub sijhawm rau lub zog ntawm rotovap. Nrhiav lub hwj chim hloov thiab xyuas kom meej tias nws nyob rau hauv txoj hauj lwm tawm ua ntej ntsaws lub cuab yeej rau hauv lub hwj huam tsim nyog. Thaum txuas nrog, hloov lub zog thiab tso cai rau rotovap pib. Ua tib zoo mloog cov lus ceeb toom lossis cov lus yuam kev uas yuav tshwm sim thaum pib, vim tias cov no tuaj yeem qhia txog cov teeb meem hauv qab uas yuav tsum tau saib xyuas.
Kev teeb tsa Parameters
Cov kauj ruam tom ntej hauv pib a rotovap suav nrog kev teeb tsa cov kev txwv kom haum rau cov kev cai tshwj xeeb ntawm cov txheej txheem distillation. Kho qhov kub ntawm cov dej da dej mus rau qhov xav tau, feem ntau dictated los ntawm lub boiling point ntawm cov kuab tshuaj evaporated. Tsis tas li ntawd, teeb tsa qhov kev sib hloov ceev ntawm lub raj mis kom ntseeg tau tias qhov zoo tshaj plaws evaporation tus nqi thaum txo qhov kev pheej hmoo ntawm cov qauv txaws los yog tsoo.
Primingqhov System
Ua ntej qhia tus qauv mus rau hauv lub rotovap, nws yog ib qho tseem ceeb rau prime lub system los tsim lub nqus tsev vacuum. Pib los ntawm kev koom nrog lub tshuab nqus tsev twj tso kua mis thiab tso cai rau nws mus txog qhov xav tau ntawm lub tshuab nqus tsev, feem ntau qhia los ntawm lub ntsuas los yog lub siab sensor. Thaum lub tshuab nqus tsev tsim, ua tib zoo txo tus qauv lub khob rau hauv cov dej da dej, xyuas kom nws ruaj ntseg thiab sib npaug los tiv thaiv kev nchuav los yog xwm txheej.
pibDistillation
Nrog lub rotovap tag nrho primed thiab configured, nws yog lub sij hawm los pib cov txheej txheem distillation. Maj mam qhia cov qauv mus rau hauv lub khob tig, saib xyuas kom tsis txhob muaj kev hloov pauv sai ntawm lub siab lossis kub uas tuaj yeem cuam tshuam qhov sib npaug. Saib xyuas cov evaporation kev nce qib ze, kho qhov ntsuas raws li qhov tsim nyog kom muaj kev pom zoo thoob plaws hauv qhov distillation.
Saib xyuasKev vam meej
Thoob plaws hauv cov txheej txheem distillation, kev mob siab rau kev saib xyuas yog qhov tseem ceeb los xyuas kom meej cov txiaj ntsig zoo. Khaws qhov muag ze ntawm qhov ntim ntawm cov kuab tshuaj evaporated thiab qhov kub thiab txias ntawm cov dej da dej, ua kev hloov kho raws li qhov xav tau los tswj kom muaj kev vam meej. Tsis tas li ntawd, yuav tsum ceev faj rau tej yam tshwm sim ntawm foaming los yog splashing uas yuav qhia tau hais tias muaj teeb meem nrog lub teeb los yog tsis.
Xaus
Hauv kev xaus, pib a rotovap yuav tsum tau ua tib zoo npaj, ua tib zoo saib xyuas kom meej, thiab ua raws li cov txheej txheem kev nyab xeeb. Los ntawm kev paub koj tus kheej nrog cov txheej txheem ua haujlwm thiab ua raws li qhov tsim nyog ceev faj, koj tuaj yeem siv lub zog ntawm cov cuab yeej tseem ceeb no rau kev ua kom distillation hauv cov chaw sim me me. Nco ntsoov xyuas qhov tseem ceeb ntawm kev nyab xeeb txhua lub sijhawm thiab sab laj cov ntaub ntawv ntsig txog lossis cov kws tshaj lij rau kev taw qhia thaum xav tau.
Cov ntaub ntawv
[1] "Rotary Evaporator (Rotovap)" - ChemLab
(https://chem.libretexts.org/Bookshelves/Physical{0}}thiab_Theoretical_Chemistry_Textbook_Maps/Supplemental{{5} }Modules_(Physical_thiab_Theoretical_Chemistry)/Physical{10}}Properties_ntawm_Matter/States _ntawm_Cov Khoom / Ua Kua_thiab_Solids/Separation_Techniques/Rotary{18}}Evaporator_(Rotovap) )
[2] "Rotary Evaporator (Rotovap)" - Sigma Aldrich
(https://www.sigmaaldrich.com/technical-documents/articles/analytical/rotary-evaporator-rotovap.html)