I-Flash Chromatography vs. I-HPLC: Thelekisa

I-chromatography yindlela ephambili kuhlalutyo lwe-chemistry esetyenziselwa ukwahlula kwaye icoce imiqathango kumxube. Phakathi kweendlela ezahlukeneyo ezikhoyo, i-flash chromatography kunye nendlela ephezulu ye-chromatography (i-HPLC) ziindlela ezimbini ezibalaseleyo, nganye ineengenelo nezicelo ezizodwa. Eli nqaku liza kuthatha indawo enzulu kwimigaqo, iingxaki, izinto ezingalunganga, izicelo, kunye nokusebenza ngokupheleleyo kwe-flash chromatography vs.

Ufuna ukwazi ngakumbi malunga nokulungiselela isampulu ye-HPLC, nceda ujonge eli nqaku:I-HLLC yesampulu yokulungiselela ukulungiselela iziphumo ezilungileyo

1. Umgaqo wokusebenza

I-Flash Chromatography yindlela yokulungiselela esebenzisa isolvent ehloniftiment ukudlulisa isampulu egcwaliswe kwikholamu ezele linqanaba lesikhululo, eliqhelekileyo i-silica gel. Isampulu ilayishwe kwikholamu, kwaye njengoko inyibilikihla ihamba, izinto ezahlukeneyo zomxube zahlulwe ngokusekwe ekusebenzisaneni kwabo nenqanaba lesikhululo. Inkqubo ikhawuleze, enemimandla ehlanjululwe kwimizuzu embalwa.

I-HPLC, kwelinye icala, yeyona ndlela ingqubanayo ngakumbi ebandakanya ukudlulisa isampulu yetroli ngekholam ezaliswe sisiqingatha sesikhululo samanyathelo. Nangona kunjalo, i-HPLC isebenza kwiingcinezelo eziphezulu (ukuya kuthi ga kwi-4000 ye-PSI okanye ngaphezulu) kwaye isetyenziswa ngokuqhelekileyo isebenzisa isaziso samanqanaba amancinci (3-5 μm). Oku kuvumela ukusebenza kakuhle nokusonjululwa kune-flash chromatography. Kungenxa yokuba i-HPLC inokulawula ngokuthe ngqo iqondo lobushushu, uxinzelelo, kunye namaxabiso okuhamba, inokufezekisa ukwahlulahlula kakhulu.

2. Izixhobo kunye nokuseta

Izixhobo zendlela ezimbini zahluka kakhulu:

I-Flash Chromatography ifuna ukuseta okulula okubandakanya ikholamu yeflash kunye nempompo yokuhambisa inqanaba leselula. Ibiyindleko ngokubanzi kwaye isebenza kakuhle kwaye kulula ukusebenza kunenkqubo ye-HPPC.

Iinkqubo ze-HLLC zintsonkothileyo, zinezixhobo ezinobuchule, izixhobo (ezinjenge-UV-Vis), kunye neenkqubo zokufumana idatha. Kungenxa yokuba izixhobo ze-HLLC zezobuchwephesha, utyalomali lwayo lokuqala luphakamile ngokubanzi.

3. Isantya kunye nokusebenza kakuhle

Enye yezona zinto zahlukeneyo phakathi kwe-flash chromatography kunye ne-HPPC isantya sabo:

I-Flash Chromatography inokucoca imijikelezo ngokukhawuleza, ihlala igqiba ukwahlukana kwimizuzu engama-30. Esi sikhawulezi siluncedo ngokukhethekileyo kwiingcali ze-organic ezifuna ukuqhubela phambili iimveliso zokuphendula.

Ngelixa i-HPLC isebenza kakhulu ngokomgangatho wokwahluka, ihlala ithatha ixesha elide ukugqiba imisebenzi efanayo ngenxa yendalo eqinileyo kunye negunya eliphezulu lokwahlula-hlula-hlula-qhina uqhuba rhoqo kuthatha ngaphezulu kweyure.

I-4. Ukucoceka kunye nesisombululo

I-Flash Chromatography isebenza kakhulu ekuhlanjululweni okuphakathi, kodwa ayinakubonelela ngamanqanaba aphezulu okucoceka okufunekayo efunekayo kuhlalutyo lokugqibela lwemveliso. Ingathanga ifezekisa amanqanaba acocekileyo, kodwa isenokungalungelanga umxube ontsonkothileyo apho isisombululo esiphezulu sibalulekile.

I-HPPC igqwesa ekuboneleleni imidibaniso ephantsi yonyulo ephantsi ngenxa yokwazi kwako ukwenziwa ngokutsalwa kwemizuzu. Ihlala iyindlela yokhetho xa ujongene nomxube ontsonkothileyo okanye xa ukwahlukana okuphezulu kuyadingeka.

I-5. Isampulu yesandla

I-Flash Chromatographys ngokubanzi ivumela imithwalo emikhulu yesampulu kune-HPLC. Obo buchule bukwenza ilungele ukucoca amanani amakhulu emichiselo, oluyingenelo ngexesha lesigaba sokuqala seSynthesi.

I-HPLC, ngelixa ikwazi ukuphatha uluhlu olubanzi lweesayizi zesampulu, ngokubanzi inezixhobo zomthwalo ophantsi ngenxa yobungakanani bayo obuncinci bekholamu kunye neemfuno eziphambili zoxinzelelo.

I-6. Ukuqwalaselwa kweendleko

Ixabiso yinto ebalulekileyo xa ukhetha phakathi kwe-flash chromatography kunye ne-HPPC:

I-Flash Chromatography ixabisa kakhulu, zombini ngokwezixhobo kunye neendleko zokusebenza. Kulula ukuseta kwaye kufuna ulondolozo oluncinci, lwenze ukuba libe nomtsalane kwiilebhu ngohlahlo-lwabiwo mali olulinganiselweyo.

Nangona i-HPPC inesisombululo esihle kunye nokucoceka, inendleko eziphezulu zokusebenza ngenxa yobunzima benkqubo kunye nemfuno yokuthengisa izinto ezinokubiza kakhulu njengeekholamu kunye nezinyibilikisi.

7. Izicelo

Zombini iindlela zobuchule zisebenzisa izixhobo ezahlukeneyo kwiinkalo ezahlukeneyo:

I-Flash Chromatography isetyenziswa ngokubanzi kwi-ornthesic synthesing yokucocwa ngokukhawuleza kweemveliso zokuphendula. Ithandwa kakhulu kwizifundo apho ukwahlulwa ngokukhawuleza kwentengiweyo kuyafuneka kwiiprojekthi zophando.

I-HPPC isetyenziswa ngokubanzi kwintsimi yamachiza yohlalutyo lwemichiza, ekufumaneni ubumbano kuvavanyo lwendalo, olungcoliseko kuvavanyo lokhuseleko lokutya, kunye nezifundo ze-biochemical apho kufuneka khona.

Izibonelelo kunye nokungancedi

I-Flash Chromatography

IZIBONELELO: Ixesha lokuthathwa ngokuqinileyo. Izixhobo ezisezantsi kunye neendleko zokusebenza. Ukuseta okulula kunye nobuchule obuncinci bobuchwephesha obufunekayo. Isampulu yokuthwala isampulu ephezulu.

Ukungancedi: Isisombululo esisezantsi xa kuthelekiswa ne-HPPC. Isenokungafezekisi amanqanaba aphezulu ococeko olufunekayo kuhlalutyo lwemveliso yokugqibela. Isebenza kancinci kwimixokelelwane entsonkothileyo efuna ukwahlulwa okuhle.

Intsebenzo ephezulu ye-chromatography

Izibonelelo: Ukusombulula okuphezulu kunye nenqanaba lokucoceka. Ukukwazi ukuhlalutya ngokufanelekileyo umxube ontsonkothileyo. Ukulawulwa ngokuchanekileyo kweemeko zokusebenza kuphucula ukuzala kwakhona.

Izinto ezingalunganga: Ixesha elihamba kancinci. Utyalomali lokuqala oluphezulu kunye neendleko zokusebenza. Izixhobo ezininzi ezintsonkothileyo zifuna uqeqesho olukhethekileyo.

Kwisishwankathelo, i-flash chromatography kunye ne-HPLC nganye inezibonelelo kwaye ezingalunganga kwaye zilungele izicelo ezahlukeneyo kuhlalutyo. I-flash chromatography ikhawuleza kwaye iphantsi-ixabisa kakhulu, iyenza ilungele imisebenzi ecocekileyo kwi-ornthesic synthesi. Ngokwahlukileyo, i-HPPC inesisombululo esihle kunye nokucoceka, ekufuneka kunyanzelekile kumsebenzi wohlalutyo oneenkcukacha kwiindawo zezulu, iiSayensi zeNdalo, kunye noKhuseleko loKhuseleko loKutya.

Ufuna ukwazi iimpendulo ezingama-50 malunga nee-vials vials, nceda ujonge eli nqaku:I-50 kakhulu imibuzo ebuzwa rhoqo kwi-vials ye-HPPL

Ekugqibeleni, ukhetho phakathi kwe-flash chromatography kunye ne-HPPC luxhomekeke kwiimfuno ezithile zelebhu, kubandakanya inqanaba lokufudusela amalabhori, ivolumu yesampulu, imiqobo yohlahlo-lwabiwo mali, kunye nokuqwalaselwa kohlahlo-lwabiwo mali. Ukuqonda lo mahluko kuvumela abaphandi ukuba bakhethe ezona teknoloji zihambelana kakhulu neemfuno zabo zomntu ngamnye, ukuqinisekisa ezona ziphumo zilungileyo zohlalutyo lwabo lweChromatographic.