izinhlayiya ze-colloid ezihlakazekile zingahlukana ku-centrifuge

Ingabe Izinhlayiya Ze-Colloid Ezihlakazekile Zingahlukana Ku-Centrifuge?

Isingeniso:

Ama-Colloid ayinhlobo ehlukile yento lapho izinhlayiya zihlakazeka ngokulinganayo kuyo yonke into ephakathi nendawo, okudala ingxube eqinile. Izibonelo zama-colloid zifaka i-gelatin, ubisi, kanye nokhilimu ohlutshiwe. Ukuhlukanisa izinhlayiya ze-colloid ezihlakazekile kusuka endaweni ephakathi nendawo kungaba yinselele ngenxa yobukhulu bazo obuncane kanye nokusabalala okufanayo. Kulesi sihloko, sihlola ukuthi i-centrifugation ingahlukanisa ngempumelelo izinhlayiya ze-colloid ezihlakazekile futhi sixoxe ngemikhawulo yayo kanye nokusetshenziswa okungenzeka.

Ukuqonda Izinhlayiya Ze-Colloid:

Izinhlayiya ze-Colloid ziyahlukahluka ngobukhulu kusukela kuma-nanometer kuya kuma-micrometer. Zikhona esimweni sokuhlakazeka, zigcina ukulingana okuzinzile ngenxa yamandla akhangayo nacasulayo asebenza phakathi kwazo. Lawa mandla avimbela izinhlayiya ukuthi zingahlali ngokwemvelo. Nakuba amandla adonsela phansi angabangela ukuhlukana okuyingxenye ngokuhamba kwesikhathi, kungase kungabi usizo ezinqubweni zezimboni lapho isikhathi sibaluleke khona.

Indima Ye-Centrifuge:

I-centrifuge iyithuluzi lelebhu elisebenzisa amandla e-centrifugal ukuhlukanisa izinhlayiya ngokusekelwe kubukhulu bazo, ukuma, kanye nobuningi. Ngokujikeleza ngesivinini esikhulu, i-centrifuge ilingisa amandla adonsela phansi anamandla kakhulu kunomhlaba odonsela phansi, okuvumela ukuhlukaniswa kwezinhlayiya okusheshayo. Kodwa ingabe i-centrifuge ingahlukanisa ngempumelelo izinhlayiya ze-colloid ezihlakazekile?

Indlela Yokujika I-Centrifugation

Uma ingxube ye-colloid ifakwa ku-centrifuge, iqala ukujikeleza ngokushesha. Amandla e-centrifugal asebenza ngokukhanya ngaphandle futhi akhiqize i-pressure gradient ngaphakathi kwengxube. Lokhu kucindezela kwe-pressure kusunduza izinhlayiya ezihlakazekile ziye emaphethelweni angaphandle e-centrifuge tube, okuholela ekuqhekekeni. I-Velocity gradients isungulwa ngaphakathi kwesampula, okubangela ukuthi izinhlayiya ezinkulu kakhulu zihlale ngokushesha kunezinhlayiya ezincane.

Ukulinganiselwa kwe-Centrifugation

Nakuba i-centrifugation iyindlela enamandla yokuhlukaniswa kwezinhlayiya, inemikhawulo yayo uma kukhulunywa ngezinhlayiya ze-colloid ezihlakazekile. Isithiyo esiyinhloko usayizi omncane walezi zinhlayiya. Ngenxa yobukhulu bazo obuncane, ukunyakaza kwe-Brownian kuba yinto ebalulekile, okubangela ukuthi izinhlayiya zihlale zimile isikhathi eside futhi kunciphisa ukusebenza kahle kwe-sedimentation. Ngaphezu kwalokho, amashaji kagesi ezindaweni zezinhlayiya angavimbela ukuhlangana nokuqina.

Ukunqoba Izinselele

Ukuze banqobe izinselele ezihambisana nokuhlukanisa izinhlayiya ze-colloid ezihlakazekile, abacwaningi bahlole izinguquko ezahlukahlukene kumasu endabuko okuhlanganisa i-centrifugation. Enye indlela ihilela ukungezwa kwama-coagulant noma ama-flocculant ukukhuthaza ukuhlanganiswa kwezinhlayiya, okuthuthukisa inqubo yokwakheka kwe-sedimentation. Enye indlela ukusebenzisa i-ultracentrifugation, kusetshenziswa isivinini esiphezulu kakhulu kanye nemiklamo ye-rotor ethuthukisiwe ukukhiqiza amandla aqinile e-centrifugal.

Amasu Okuthuthukisa I-Centrifugation

Ngaphandle kwama-coagulant kanye ne-ultracentrifugation, ososayensi bathuthukise amasu ahlukile okuthuthukisa ukuhlukaniswa kwezinhlayiya ze-colloid ezihlakazekile. Amadivayisi e-Microfluidic, isibonelo, asebenzisa iziteshi ezincane kanye namandla e-centrifugal ukwenza lula inqubo yokuhlukaniswa kwezinhlayiya. Iziteshi ezakhiwe kahle zakha ukugeleza kwe-laminar, okuhlukanisa izinhlayiya ze-colloidal kusuka ku-medium ngempumelelo enkulu.

Izicelo Zezimboni

I-Centrifugation idlala indima ebalulekile ezinhlotsheni ezahlukene zezimboni. Embonini yokudla neziphuzo, kusiza ukuhlukanisa ukungcola noma izinhlayiya eziqinile koketshezi, okuqinisekisa ikhwalithi yomkhiqizo ephezulu. Izinkampani zemithi zithembele eku-centrifugation ukuze zihlanze futhi zihlukanise izinhlayiya ezifunwayo ngesikhathi sokuthuthukiswa kwemithi. Ngaphezu kwalokho, izitshalo zokwelapha amanzi amdaka zisebenzisa ama-centrifuge ukuze zisuse ngempumelelo izinto eziqinile ezilengisiwe kanye nezinye izinto ezingcolisayo emanzini, okunegalelo ezindaweni ezihlanzekile.

Isiphetho:

Nakuba izinhlayiya ze-colloid ezihlakazekile ziyinselele ekuhlanganiseni i-centrifuge, abacwaningi benze intuthuko enkulu ekuthuthukiseni amasu okuthuthukisa ukuhlukaniswa kwazo. Ukushintsha ama-centrifuge endabuko, ukufaka ama-coagulant, kanye nokuhlola amadivayisi e-microfluidic kumane kuyizibonelo ezimbalwa zentuthuko eyenziwayo. Ngokuqonda imikhawulo nokuhlola amasu amasha, ososayensi bangavula amandla aphelele e-centrifuge yokuhlukanisa izinhlayiya ze-colloid ezihlakazekile, baguqule izimboni ezahlukene kule nqubo.