Petri Dish

I-Petri Dish---Idizayini Eyinkimbinkimbi kanye Nokukhiqiza Okunembayo

1.I-polystyrene yekhwalithi ephezulu engenisiwe isetshenziswa njengempahla eluhlaza.Ubuso besitsha sePetri bushelelezi futhi ukukhanya okugcwele kuphezulu, okulungele ukukhula nokwandiswa kwamaseli anamathela odongeni.

2.Ifakwe inzalo nge-ethylene oxide ukuze kuqinisekiswe ubunyumba, yamukela ukupakishwa kohlobo lwezinyembezi lwamazwe ngamazwe.

3.Ifanele iseli, isiko lebhaktheriya, ukuhlolwa kokuzwela kwezidakamizwa, njll. ibuye ifanele ukujova i-laboratory, i-scribing, ukuhlukaniswa kwamakholoni nokuhlanza, njll.

Inqubo Yokuhlanza

Ngokuvamile, kunezinyathelo ezine: ukucwiliswa emanzini, ukuxubha, ukukha, nokuhlanza.

1. Ukucwiliswa emanzini: Izitsha zengilazi ezintsha noma ezisetshenzisiwe kufanele zifakwe emanzini acwebile kuqala ukuze zithambe futhi zihlakaze okunamathiselwe.I-glassware entsha kufanele ivele ixutshwe ngamanzi kampompi ngaphambi kokusetshenziswa, bese icwiliswa ubusuku bonke nge-5% hydrochloric acid;I-glassware esetshenzisiwe ngokuvamile iqukethe amaprotheni amaningi namafutha, okungelula ukuwaxubha ngemva kokumiswa, ngakho kufanele ifakwe ngokushesha emanzini ahlanzekile ukuze ixutshwe ngemva kokusetshenziswa.

2. Ukuxubha: faka i-glassware ecwilisiwe emanzini okugeza bese uxubha ngokuphindaphindiwe ngebhulashi elithambile.Ungashiyi amakhona afile, futhi uvimbele ukulimala endaweni engaphezulu kwezitsha.Geza bese usula i-glassware egeziwe yokukhetha.

3. I-Pickling: I-picling iwukucwilisa izitsha ezingenhla ekuhlanzeni isixazululo, eyaziwa nangokuthi isixazululo se-asidi, nokususa izinto ezingase zisele phezu kwemikhumbi ngokusebenzisa i-oxidation eqinile yesisombululo se-asidi.Ukukha akumele kube ngaphansi kwamahora ayisithupha, ngokuvamile ubusuku bonke noma ngaphezulu.Qaphela lapho ubeka futhi uthatha iziqukathi.

4. Ukugeza: izitsha emva kokuxubha kanye nokukhetha kufanele zigezwe ngokugcwele ngamanzi.Ukuthi izitsha zigezwa zihlanzeke ngemuva kokukhetha kuthinta ngqo impumelelo noma ukwehluleka kwesiko lamaseli.Ngemuva kokugeza izandla izitsha ezifakwe emanzini anosawoti, isitsha ngasinye kufanele sigcwaliswe ngokuphindaphindiwe "ngamanzi angenalutho" okungenani izikhathi ezingu-15, futhi ekugcineni sifakwe emanzini acwecwe kabusha izikhathi ezingu-2-3, omisiwe noma omisiwe futhi apakishwe ngokubekwe eceleni.

 

Isiko Plate

1.Yamukela ubuchwepheshe bokwelapha obusezingeni eliphezulu kanye nenqubo yokukhiqiza yezinto ezisezingeni eliphansi ze-polymer.

2.Inhlanganisela yekhava nepuleti eliphansi linokuqina okumaphakathi, okulungele ukungena komoya futhi kuvimbela ukungcoliswa kwepuleti lesiko noma ukuhwamuka koketshezi.

3.Ukucaciswa okuhlukahlukene kuhlangabezana namasiko amaseli ahlukahlukene.