Koj puas tuaj yeem Rotovap Tawm Chloroform?
Apr 14, 2024
Tso lus
Yog, nws yog conceivable los siv ib tug rotationalevaporator (rotovap)tshem tawm chloroform los ntawm kev npaj. Lub evaporator revolving ua haujlwm los ntawm kev siv lub tshuab nqus tsev hnyav thiab sov kom dissipate cov kuab tshuaj los ntawm kev npaj, tshem tawm tom qab cov khoom sib txuas.
Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias chloroform yog qhov tsis ruaj khov thiab muaj peev xwm ua kom puas tsuaj. Kev tiv thaiv kev nyab xeeb raug cai yuav tsum tau ua thaum ua haujlwm nrog chloroform, suav ua haujlwm nyob rau hauv qhov chaw muaj cua zoo, siv cov khoom siv tiv thaiv tus kheej (xws li hnab looj tes thiab tsom iav), thiab ua raws li tag nrho cov kev cai ruaj ntseg thiab cov cai tseem ceeb.
Tsis tas li ntawd, chloroform tuaj yeem tsim cov vapors txaus ntshai thaum sov, yog li nws yog qhov tseem ceeb los lav tias cov evaporator rotating yog raug cai thiab cov dissipation yog nqa tawm ntawm qhov ntsuas kub kom txo tau qhov phom sij ntawm kev nthuav qhia.
Nkag siab txog Chloroform thiab Nws Cov Khoom
Qee lub sij hawm tsis ntev los no dhia mus rau hauv qhov nyuaj ntawm rotating vanishing nrog chloroform, nws yog ib qho yooj yim kom tau txais ib tug kov ntawm qhov xwm ntawm no dissolvable. Chloroform, nrog rau cov tshuaj sib npaug CHCl3, yog cov dej tsis muaj xim, tsis ruaj khov nrog cov yam ntxwv tsw qab. Nws yog feem ntau siv raws li ib tug dissovable nyob rau hauv ntau yam kev tshawb fawb chaw siv, suav extraction thiab decontamination daim ntawv. Txawm li cas los xij, nws yog ib qho tseem ceeb kom nco ntsoov tias chloroform yog ib qho kev txaus ntshai, ua rau muaj kev phom sij rau kev noj qab haus huv xws li lub hauv paus kev txhawj xeeb txog kev tu siab thiab muaj peev xwm ua rau mob carcinogenic.
Chloroform, nrog rau cov tshuaj sib npaug CHCl3, yog cov dej tsis muaj xim, tsis ruaj khov nrog cov yam ntxwv tsw qab. Nov yog qee qhov tseem ceeb tsom yuav luag chloroform thiab nws cov khoom:
Chemical Structure: Chloroform yog ib qho trihalomethane compound, uas muaj ib tug carbon molecule ntxiv rau peb hydrogen hais thiab ib tug chlorine molecule. Nws cov qauv atomic yog tetrahedron, nrog cov tshuaj chlorine molecule muaj ib qho ntawm cov vertices.
Lub cev muaj zog:
- Molecular Luj: Lub atomic hnyav ntawm chloroform yog nyob ib ncig ntawm 119.38 grams ib mole.
- Boiling Point: Chloroform muaj qhov ua npuas ncauj ntawm ib ncig ntawm 61.2 degrees Celsius (142.2 degrees Fahrenheit) ntawm qhov hnyav barometrical.
- Ceev: Qhov ceev ntawm chloroform yog kwv yees li 1.48 grams ib cubic centimeter.
- Solubility: Chloroform yog me ntsis soluble nyob rau hauv dej tab sis heev soluble nyob rau hauv cov organic solvents xws li ethanol, ether, thiab benzene.
- Cov ntxhiab tsw: Chloroform muaj qab zib, me ntsis tsw qab ntxiag ntawm qhov tsis tshua muaj siab, tab sis nws tuaj yeem ua rau pungent thiab khaus ntawm qhov siab dua.
Chemical Properties:
- Reactivity: Chloroform yog qhov ruaj khov nyob rau hauv ib txwm muaj tab sis tuaj yeem hnov mob nrog cov tshuaj oxidizing muaj zog los tsim phosgene, cov tshuaj lom neeg muaj zog heev.
- Flammability: Chloroform tsis yog flammable, tab sis nws tuaj yeem tsim cov khoom tsim kev puas tsuaj xws li hydrogen chloride thiab phosgene thaum raug kub.
Toxicity thiab Health Effects:
- Toxicity: Chloroform yog suav tias yog tshuaj lom neeg thiab muaj tshuaj lom yog tias nqus tau, noj, lossis nqus los ntawm daim tawv nqaij. Lub sij hawm ntev los yog qib siab tuaj yeem ua rau muaj kev cuam tshuam loj rau kev noj qab haus huv, suav nrog kev puas tsuaj rau daim siab, ob lub raum, thiab lub hauv paus paj hlwb.
- Carcinogenicity: Chloroform tau raug cais raws li tib neeg cov kab mob carcinogen los ntawm ntau lub koom haum saib xyuas kev noj qab haus huv, suav nrog International Agency for Research on Cancer (IARC).
Kev siv:
Keeb kwm, chloroform tau dav siv los ua tshuaj loog, txawm hais tias nws siv hauv lub peev xwm no tau hloov pauv ntau yam kev nyab xeeb.
Chloroform kuj tseem siv los ua cov kuab tshuaj hauv cov chaw kuaj mob, tshwj xeeb tshaj yog rau kev rho tawm thiab ntxuav cov organic tebchaw.
Nws tau siv rau hauv kev lag luam rau ntau lub hom phiaj, nrog rau cov kuab tshuaj hauv kev tsim tshuaj thiab tshuaj tua kab, nrog rau kev tsim cov tub yees thiab cov tshuaj tua kab.
Vim nws cov tshuaj lom thiab muaj peev xwm ua rau muaj kev phom sij rau kev noj qab haus huv, kev siv chloroform yog nruj me ntsis tswj nyob rau hauv ntau lub teb chaws, thiab lwm txoj kev yog feem ntau nyiam thaum ua tau. Thaum tuav cov tshuaj chloroform, nws yog ib qho tseem ceeb uas yuav tsum ua raws li cov txheej txheem kev nyab xeeb thiab cov kev cai kom txo tau qhov kev pheej hmoo ntawm kev raug mob thiab xyuas kom muaj kev nyab xeeb.
Rotary evaporation: Cov ntsiab lus
Architectural tsim & npaj cepteur sint occaecat cupidatat proident, tau txais kuv tus plig tag nrho, zoo li cov qab zib thaum sawv ntxov ntawm lub caij nplooj ntoos hlav uas kuv txaus siab nrog kuv tag nrho ... Architectural tsim & npaj cepteur sint occaecat cupidatat proident, tau txais los ntawm kuv tus plig tag nrho, xws li cov qab zib thaum sawv ntxov lub caij nplooj ntoos hlav uas kuv txaus siab nrog kuv tag nrho Lorem ipsum dolor zaum ament, consectetur adipisicing elit, sed do eiusmod tempor incididunt labore et dolore magna aliqua. nws enim ad minim veniam.
Kev ua tau zoo ntawm Rotovapping Chloroform
Qhov feasibility ntawm rotovapping chloroform feem ntau nyob ntawm ntau yam, suav nrog cov concentration ntawm chloroform hauv cov tshuaj, qhov kub thiab txias thaum lub sij hawm evaporation, thiab kev ua haujlwm ntawm cov evaporator rotary teeb. Nyob rau hauv ib cheeb tsam me me, qhov kev tswj xyuas meej ntawm qhov kev sim ntsuas yuav raug txwv piv rau cov chaw tsim khoom, tshwj xeeb yuav tsum tau them rau cov txheej txheem kev nyab xeeb thiab cov khoom siv ua haujlwm.
Kev xav txog kev nyab xeeb
Kev nyab xeeb yog qhov tseem ceeb tshaj plaws thaum ua haujlwm nrog chloroform, muab nws cov kev phom sij rau kev noj qab haus huv thiab flammability. Kev ua pa kom zoo yog qhov tseem ceeb los tiv thaiv kev tsim cov vapors, thiab cov cuab yeej tiv thaiv tus kheej, nrog rau cov hnab looj tes thiab tsom iav, yuav tsum hnav ib txwm. Tsis tas li ntawd, rotary evaporator yuav tsum tau nruab nrog cov yam ntxwv ntawm kev nyab xeeb xws li lub siab nyem li qub thiab tsis siv neeg kaw cov tshuab kom txo tau qhov kev pheej hmoo ntawm kev sib tsoo.
Optimizing Rotovap Cov Cai
Txhawm rau ua kom zoo rotovap tawm chloroform hauv qhov chaw sim me me, kev ua kom zoo rau kev sim yog qhov tseem ceeb. Qhov no suav nrog kev ua tib zoo tswj qhov kub thiab lub tshuab nqus tsev kom pab txhawb kom muaj txiaj ntsig evaporation thaum txo qhov kev pheej hmoo ntawm cov kuab tshuaj poob lossis degradation. Tsis tas li ntawd, xaiv cov iav uas tsim nyog thiab ua kom muaj kev sib khi zoo ntawm kev sib txuas tuaj yeem txhim kho kev ua haujlwm tag nrho ntawm cov evaporator teb.
Kev sim validation
Ua ntej nrog rotovapping chloroform, nws raug nquahu kom ua qhov kev sim ua ntej los ntsuas qhov ua tau thiab kev nyab xeeb ntawm cov txheej txheem. Qhov no yuav suav nrog kev sim ntsuas qhov sib txawv xws li ntsuas qhov kub thiab txias, qib nqus tsev vacuum, thiab hnyav hnyav los txiav txim siab qhov zoo tshaj plaws rau evaporation. Tsis tas li ntawd, kev saib xyuas cov concentration ntawm chloroform thoob plaws hauv cov txheej txheem siv cov txheej txheem tshuaj ntsuam xyuas xws li roj chromatography tuaj yeem muab cov kev nkag siab zoo rau kev ua haujlwm ntawm cov txheej txheem purification.
Xaus
Hauv kev xaus, thaum rotovapping chloroform muaj peev xwm ua tau nyob rau hauv qhov chaw sim me me, nws yuav tsum tau ua tib zoo xav txog cov txheej txheem kev nyab xeeb thiab kev sim. Los ntawm kev nkag siab txog cov khoom ntawm chloroform, optimizing rotovap tsis, thiab ua raws li kev ntsuas kev nyab xeeb, cov kws tshawb fawb tuaj yeem tshem tawm cov tshuaj chloroform los ntawm kev daws teeb meem thaum txo qis kev pheej hmoo ntawm kev noj qab haus huv thiab ua kom muaj kev ntseeg siab.
Cov ntaub ntawv:
"Chloroform - PubChem." National Center for Biotechnology Information, US National Library of Medicine, pubchem.ncbi.nlm.nih.gov/compound/Chloroform.
"Rotary Evaporation nyob rau hauv lub Laboratory." Sigma-Aldrich, www.sigmaaldrich.com/technical-documents/articles/analytical/rotary-evaporation-in-the-laboratory.html.
"Cov Lus Qhia rau Kev Nyab Xeeb Kev Nyab Xeeb: Tshuaj Fume Hoods." Environmental Health & Safety, University of California, Los Angeles, www.ehs.ucla.edu/documents/ChemicalFumeHoods_Guidelines.pdf.