I-Chromatography iyindlela ebalulekile kumakhemikhali wokuhlaziya asetshenziselwa ukuhlukanisa futhi ahlanze amakhompiyutha avela kwingxube. Phakathi kwezindlela ezahlukahlukene ezitholakalayo, i-chromatography ye-flash chromatography kanye ne-high Performance i-chromatography (HPLC) yizindlela ezimbili ezivelele, ngayinye enezinzuzo ezihlukile nezinhlelo zokusebenza. Le ndatshana izothambisa kakhulu ezimisweni, izinzuzo, ababi, izicelo, kanye nokusebenza kahle kwe-chromatography ye-flash chp.

Ufuna ukwazi kabanzi nge-HPLC Sampula Ukulungiselela, sicela ubheke le ndatshana:I-HPLC isampula izixazululo zokulungiselela imiphumela emihle kakhulu

1. Umgomo wokusebenza

I-Flash Chromatography iyindlela yokulungiselela esebenzisa i-solvent ecindezelwe ukudlula isampula ngekholomu egcwele isigaba esimisiwe, imvamisa i-silica gel. Isampula ilayishwe kukholamu, futhi njengoba i-solvent igeleza idlula, izingxenye ezahlukahlukene zenhlanganisela zihlukaniswe ngokususelwa ekuxhumaneni kwazo nesigaba sazo. Inqubo ishesha kakhulu, amakhompiyutha ahlanzwa ngemizuzu nje embalwa.

Ngakolunye uhlangothi, i-HPLC, inqubo eyinkimbinkimbi futhi ehilela ukudlula isampula uketshezi ngokusebenzisa ikholamu eligcwele impahla yesigaba seminyaka. Kodwa-ke, i-HPLC isebenza ngokucindezela okuphezulu (kuze kube ngu-4000 PSI noma ngaphezulu) futhi ngokuvamile isebenzisa amasayizi amancane wesigaba sezinhlayiyana (3-5 μm). Lokhu kuvumela ukusebenza kahle kokuhlukanisa okuphezulu kanye nokuxazululwa kune-chromatography ye-flash. Ngoba i-HPLC ingalawula ngokuqondile izinga lokushisa, ingcindezi, kanye namanani okugeleza, lingafinyelela ukuhlukaniswa okuqondile kakhulu.

2. Imishini nokusetha

Imishini yamasu amabili iyehluka kakhulu:

I-Flash Chromatography idinga ukusetha okulula okubandakanya ikholomu ye-flash kanye nephampu ukuletha isigaba seselula. Ngokuvamile kubiza kakhulu futhi kulula ukusebenza kunohlelo lwe-HPLC.

Izinhlelo ze-HPLC ziyinkimbinkimbi ngokwengeziwe, equkethe amaphampu we-pomps anezinhlelo zokusebenza, ama-detectors (anjengezinhlelo ze-UV-vis), nezinhlelo zokutholwa kwedatha. Ngoba imishini ye-HPLC ithuthuke ngobuchwepheshe, ukutshala kwayo kokuqala kuvame ukuphakama.

3. Ijubane nokusebenza kahle

Omunye womehluko obaluleke kakhulu phakathi kwe-flash chromatography ne-HPLC isivinini sawo:

I-Flash Chromatography ingahlanza amakhompiyutha ngokushesha, imvamisa ukuqeda ukuhlukaniswa kungakapheli imizuzu engama-30. Leli jubane liwusizo ikakhulukazi kumakhemikhali we-organic adinga ukuhlukanisa imikhiqizo yokuphendula ngokushesha.

Ngenkathi i-HPLC isebenza kahle kakhulu ngokuya ngekhwalithi yokwehlukanisa, imvamisa kuthatha isikhathi eside ukuqedela imisebenzi efanayo ngenxa yemvelo yayo ebonakalayo kanye namandla aphezulu okuhlukanisayo - Ukuqhutshwa kwesampula ngayinye kuvame ukuthatha isikhathi esingaphezu kwehora.

4. Ubumsulwa kanye nesinqumo

I-Flash Chromatography isebenza kakhulu ekuhlanzeni okuphakathi nendawo okuphakathi, kepha ingahle inganikezeli amazinga aphezulu wokuhlanzeka adingekayo ekuhlaziyweni komkhiqizo wokugcina. Kungafinyelela ngokujwayelekile amazinga amnandi wokuhlanzeka, kepha kungenzeka kungalungele izingxube eziyinkimbinkimbi kakhulu lapho kubuye kube khona isinqumo esiphakeme.

I-HPLC idlula ukuhlinzeka ngamakhompiyutha ahlanzekile aphezulu ngenxa yekhono lawo lokubonisa imibandela yokuhlukanisa. Ngokuvamile kuyindlela yokuzikhethela lapho ubhekene nokuxubana okuyinkimbinkimbi noma lapho kudingwa okuphezulu kokuhlukaniswa.

5. Umthamo oyisampula

I-Flash Chromatography ngokuvamile ivumela imithwalo yesampula enkulu kune-HPLC. Lokhu kukwenza kwenza kube lula ukuhlanza inani elikhulu lezinhlanganisela, ezizuzisa ngezigaba zokuqala zokuqala.

I-HPLC, ngenkathi ikwazi ukuphatha amasayizi ahlukahlukene wesampula, ngokuvamile inamakhono aphansi okulayisha ngenxa yobukhulu bayo obuncane bekholamu nezinhlanzi eziphakeme.

6. Ukucatshangelwa Kwezindleko

Izindleko ziyisici esibalulekile lapho ukhetha phakathi kweFlash Chromatography ne-HPLC:

I-Flash Chromatography ibiza kakhulu, zombili ngokuya ngezindleko zokusebenza nezindleko zokusebenza. Kulula ukusetha futhi kudinga ukulungiswa okuncane, okwenza kukhange kube ama-laboratories ngezabelomali ezilinganiselwe.

Yize i-HPLC inesinqumo esihle kakhulu kanye nobumsulwa, inezindleko eziphezulu zokusebenza ngenxa yobunzima bohlelo kanye nesidingo sokudla okubizayo okufana namakholomu nama-sol.

7. Izicelo

Zombili lezi zinqubo zinokusetshenziswa okuhlukile emikhakheni ehlukahlukene:

I-Flash Chromatography isetshenziswa kabanzi ku-organic synthesis ukuze kuhlanjululwe ngokushesha kwemikhiqizo yokuphendula. Ithandwa kakhulu ezindaweni ezifundwayo lapho kudingeka khona ukwahlukaniswa kwamakhompiyutha okusheshayo kumaphrojekthi ocwaningo.

I-HPLC isetshenziswa kabanzi enkundleni yezemithi ukuze ihlaziywe yokwakhiwa kwezidakamizwa, ukutholwa kokungcoliswa kwemvelo ekuhlolweni kwezemvelo, kungcola ekuhlolweni kokuphepha kokudla, kanye nezifundo ze-biochemical lapho kutholakala khona ama-analiya okuhlaziya.

Izinzuzo nobubi

I-Flash Chromatography

Izinzuzo: Isikhathi sokuhlanza esisheshayo. Imishini ephansi nezindleko zokusebenza. Ukusetha okulula kanye nobuchwepheshe obuncane bezobuchwepheshe obudingekayo. Isampula ephakeme ethwala.

Okubi: Ukulungiswa okuphansi kuqhathaniswa ne-HPLC. Kwangathi kungafinyeleli amazinga aphezulu wokuhlanzeka adingekayo ekuhlaziyweni komkhiqizo wokugcina. Isebenza kahle ekuxubeni okuyinkimbinkimbi okudinga ukuhlukaniswa okuhle.

I-Chromatography ephezulu yokusebenza kwe-chromatography

Izinzuzo: Ukulungiswa okuphezulu namazinga wokuhlanza. Ikhono lokuhlaziya ngempumelelo ukuxubeka okuyinkimbinkimbi. Ukulawulwa okuqondile kwezimo zokusebenza kuthuthukisa ukuvela kabusha.

Okubi: Isikhathi sokucutshungulwa kancane. Ukutshalwa kwezimali okuphezulu okuphezulu nezindleko zokusebenza. Imishini eminingi eyinkimbinkimbi idinga ukuqeqeshwa okukhethekile.

Ngamafuphi, i-flash chromatography ne-HPLC ngayinye inezinzuzo nobubi futhi ilungele izinhlelo zokusebenza ezihlukile kumakhemikhali wokuhlaziya. I-Flash Chromatography ishesha futhi iphansi, okwenza kube yinto elungele imisebenzi yokuhlanza ngokushesha ekuhlanganiseni kwe-organic. Ngokuphambene nalokho, i-HPLC inesinqumo esihle kakhulu kanye nobumsulwa, okudingekayo ukuze kusetshenziswe umsebenzi wokuhlaziya onemininingwane emikhakheni, kwisayensi yezemvelo, nokuhlolwa kokuphepha kokudla.

Ufuna ukwazi izimpendulo ezingama-50 mayelana ne-HPLC VIALS, sicela uhlole le ndatshana:Imibuzo evame ukubuzwa kaningi ku-HPLC VIALS

Ekugcineni, ukukhetha phakathi kweFlash Chromatography ne-HPLC kuya ngezidingo ezithile zelebhu, kufaka phakathi izinga lokuhlanzeka elifunekayo, ivolumu yesampula, izingqinamba zesabelomali kanye nokucatshangelwa kwesabelomali kanye nokucatshangelwa kwesikhathi. Ukuqonda lo mehluko kuvumela abacwaningi ukuthi bakhethe ubuchwepheshe obufanele kakhulu ngezidingo zabo, buqinisekisa imiphumela emihle yokuhlaziywa kwabo kwe-chromatographic.

Okwedlule:

Ungayikhetha kanjani i-HPLC elungile ye-HPLC ye-sople yakho?

Olandelayo:

I-HPLC ihluke kanjani kwikholomu ye-GC?