Uma kuziwa ekulinganiseni nasekukhipheni umthamo othize wanoma yiluphi uketshezi, ama-pipette abaluleke kakhulu endaweni yanamuhla yaselabhorethri. Ngokuya ngosayizi welebhu kanye nevolumu edinga ukuhanjiswa, izinhlobo ezahlukene zamapayipi zivame ukusetshenziswa:
- Amapayipi okuhambisa umoya
- Positive displacement pipettes
- Amapayipi okulinganisa
- Adjustable range pipettes
Ngo-2020, sesiqala ukubona ama-micropipettes okususwa komoya edlala indima ebalulekile empini yokulwa ne-COVID-19, futhi asetshenziselwa ukulungiselela isampula yokutholwa kwe-pathogen (isb, i-RT-PCR yesikhathi sangempela). Ngokuvamile, imiklamo emibili ehlukene ingasetshenziswa, ama-pipettes okuhambisa umoya okwenziwa ngesandla noma ngemoto.
I-Manual Air Displacement Pipettes vs I-Motorized Air Displacement Pipettes
Esibonelweni se-pipette yokufuduka komoya, i-piston ihanjiswa phezulu noma phansi ngaphakathi kwe-pipette ukuze idale ukucindezela okungalungile noma okuhle kukholomu yomoya. Lokhu kuvumela umsebenzisi ukuthi ahogele noma akhiphe isampula ewuketshezi esebenzisa ithiphu le-pipette elahlwayo, kuyilapho ikholomu yomoya ephuzwini ihlukanisa uketshezi ezingxenyeni ezingalahlwa ze-pipette.
Ukunyakaza kwepiston kungaklanywa ukuthi kwenziwe ngesandla ngu-opharetha noma nge-elekthronikhi, okungukuthi u-opharetha uhambisa ipiston ngokusebenzisa inkinobho yokucindezela injini elawulwayo.
Ukulinganiselwa kwama-pipettes okwenziwa ngesandla
Ukusetshenziswa isikhathi eside kwama-pipettes okwenziwa ngesandla kungabangela ukungakhululeki ngisho nokulimala ku-opharetha. Amandla adingekayo ukuze kukhishwe uketshezi futhi kukhishwe ithiphu le-pipette, kuhlanganiswe nokunyakaza okuphindaphindiwe okuphindaphindiwe emahoreni ambalwa, kungandisa amalunga, ikakhulukazi isithupha, indololwane, isihlakala, nehlombe, engozini ye-RS (I-repetitive muscle strain) engozini.
Amapayipi okwenziwa ngesandla adinga inkinobho yesithupha ukuthi icindezelwe ukuze kukhululwe uketshezi, kuyilapho ama-pipette e-electronic anikeza ama-ergonomics angcono ngenkinobho ecushwe ngogesi kulesi sibonelo.
Ezinye izindlela zikagesi
Amapayipi e-elekthronikhi noma ahamba ngemoto ayizindlela ezihlukile ze-ergonomic kuma-pipettes okwenziwa ngesandla athuthukisa ngempumelelo ukuphuma kwesampula futhi aqinisekise ukunemba nokunemba. Ngokungafani nezinkinobho ezivamile ezilawulwa izithupha kanye nokulungiswa kwevolumu okwenziwa ngesandla, amapayipi kagesi afika nesixhumi esibonakalayo sedijithali ukuze ulungise ivolumu ne-aspirate kanye nokukhipha ngephiston elisebenza ngogesi.
Ukukhethwa Kwezimoto Ze-Electronic Pipettes
Ngenxa yokuthi ipayipi ngokuvamile iyisinyathelo sokuqala senqubo yezinyathelo eziningi, noma yikuphi ukungalungi noma ukungapheleli okwenzeka lapho kulinganiswa le ngxenye encane yoketshezi kungazwakala kuyo yonke inqubo, ekugcineni kuthinte ukunemba okuphelele nokunemba.
Kuyini ukunemba nokunemba?
Ukunemba kufinyelelwa lapho i-pipette ikhipha umthamo ofanayo izikhathi eziningi. Ukunemba kufinyelelwa lapho i-pipette ikhipha umthamo ohlosiwe ngokunembile ngaphandle kwephutha. Ukunemba nokunemba kunzima ukufeza ngesikhathi esifanayo, nokho izimboni ezisebenzisa ama-pipette zidinga kokubili ukunemba nokunemba. Eqinisweni, yileli zinga eliphezulu kakhulu elenza kube nokwenzeka ukukhiqiza kabusha imiphumela yokuhlolwa.
Inhliziyo yanoma iyiphi i-pipette ye-electronic iyinjini yayo, ethinta kakhulu ukunemba nokunemba kwe-pipette, ngaphezu kwezinye izici ezibalulekile ezifana nobukhulu bephakheji, amandla nesisindo. Onjiniyela be-Pipette design ngokuyinhloko bakhetha ama-stepper linear actuators noma ama-DC motors. Kodwa-ke womabili ama-stepper motors kanye nama-DC motors anezinzuzo zawo kanye nokubi.
DC Motors
Ama-DC motors amamotho alula ajikelezayo lapho kusetshenziswa amandla e-DC. Azidingi ukuxhumana okuyinkimbinkimbi ukwenza injini isebenze. Kodwa-ke, uma kubhekwa izidingo zokunyakaza okuqondile kwamapayipi kagesi, izixazululo zemoto ye-DC zidinga isikulufu sokuhola esengeziwe kanye negiya ukuze kuguqulwe ukunyakaza okujikelezayo kube ukunyakaza okulandelanayo futhi kunikeze amandla adingekayo. Izixazululo ze-DC futhi zidinga indlela yempendulo esesimweni senzwa yokubona noma i-encoder ukuze ulawule ngokunembile indawo yepiston yomugqa. Ngenxa ye-inertia ephezulu ye-rotor yayo, abanye abaklami bangase futhi bengeze isistimu yokubhuleka ukuze bathuthukise ukunemba kokuma.
Izinjini ze-stepper
Ngakolunye uhlangothi, onjiniyela abaningi bakhetha izixazululo ze-stepper linear actuator ngenxa yokulula kwazo ukuhlanganiswa, ukusebenza okuhle kakhulu kanye nezindleko eziphansi. Ama-Actuator alayini we-Stepper ahlanganisa amamotho ahlala unomphela azibuthe ane-rotor enentambo kanye ne-filament bar edidiyelwe ukukhiqiza ukunyakaza okuqondile okuqondile kumaphakheji amancane.
Isikhathi sokuthumela: Jun-19-2024