Izinyathelo zokuphepha zokusetshenziswa kwezitsha zePetri
Ukuhlanza izitsha zePetri
1. Ukucwiliswa emanzini: Cwilisa izitsha zengilazi ezintsha noma ezisetshenzisiwe ngamanzi ahlanzekile ukuze uthambise futhi uhlakaze okunamathiselwe.Ngaphambi kokusebenzisa i-glassware entsha, vele uyixube ngamanzi kampompi, bese uyicwilisa ku-5% we-hydrochloric acid ngobusuku bonke;I-glassware esetshenzisiwe ngokuvamile iqukethe amaprotheni amaningi namafutha, okungelula ukuxubha ngemva kokumisa, ngakho kufanele ifakwe emanzini ahlanzekile ngokushesha ngemva kokusetshenziswa ukuxubha.
2. Ukuxubha: faka i-glassware ecwilisiwe emanzini okugeza bese uxubha ngokuphindaphindiwe ngebhulashi elithambile.Ungawashiyi amakhona afile futhi uvimbele ukulimala endaweni engaphezulu kweziqukathi.Geza futhi usule i-glassware ehlanjululwe yokukhetha.
3. Ukukha i-Pickling: Ukucwilisa imikhumbi engenhla ukucwilisa isitsha esingenhla esixutshweni sokuhlanza, esaziwa nangokuthi isixazululo se-asidi, ukususa izinsalela ezingaba khona phezu kwemikhumbi ngokusebenzisa i-oxidation eqinile yesisombululo se-asidi.Ukuvuthwa akumele kube ngaphansi kwamahora ayisithupha, ngokuvamile ebusuku noma ngaphezulu.Qaphela lapho ubeka futhi uthatha izitsha.
4. Ukuhlanza: Izitsha ngemva kokuxubha nokucwiliswa kufanele zigezwe ngokugcwele ngamanzi.Ukuthi izitsha zigezwa zihlanzeke ngemuva kokukhetha kuthinta ngqo impumelelo noma ukwehluleka kwesiko lamaseli.Ukugeza ngezandla izitsha ezifakwe emanzini anosawoti, isitsha ngasinye sizogcwaliswa ngokuphindaphindiwe "ngamanzi - sithululwe" okungenani izikhathi ezingu-15, futhi ekugcineni sigezwe izikhathi ezingu-2-3 ngamanzi ashisayo, omisiwe noma omisiwe, futhi apakishwe ukuze abekwe eceleni.
5. Izitsha zepulasitiki ezilahlwayo zivame ukufakwa inzalo ngama-ray noma amagciwane lapho ziphuma efekthri.
Ukuhlukaniswa kwezitsha zePetri
2. Ingahlukaniswa ibe izitsha ze-petri zepulasitiki kanye nezitsha ze-petri zengilazi ngokusho kwezinto ezihlukene zokukhiqiza, kodwa kokubili izitsha ze-petri ezingenisiwe kanye nezitsha ze-petri ezilahlwayo ziyizinto zepulasitiki.
3. Ngobukhulu obuhlukahlukene, zingahlukaniswa ngokujwayelekile zibe ngu-35mm, 60mm no-90mm ububanzi.150mm Petri dish.
4. Ngokusho kwezingxenye ezihlukene, zingahlukaniswa zibe izitsha ezi-2 ezihlukene zePetri, izitsha ezi-3 ezihlukene zePetri, njll.
5. Izinto zezitsha zesiko zihlukaniswa ngokuyisisekelo zibe izigaba ezimbili, ikakhulukazi ipulasitiki nengilazi.Ingilazi ingasetshenziselwa izinto zezitshalo, isiko le-microbial kanye nesiko lokunamathela lamaseli ezilwane.Izinto zepulasitiki zingase zibe izinto ze-polyethylene, ezingasetshenziswa kanye noma izikhathi eziningi.Zilungele ukujova elabhorethri, ukujova, kanye nemisebenzi yokuhlukanisa amagciwane, futhi zingasetshenziselwa ukutshala izinto zezitshalo.
Izinyathelo zokuphepha zokusetshenziswa kwezitsha zePetri
1. Isitsha sosiko siyahlanzwa futhi sibulawe amagciwane ngaphambi kokusetshenziswa.Ukuthi ihlanzekile noma cha kunomthelela omkhulu emsebenzini, okungathinta i-pH yendawo yesiko.Uma kukhona amakhemikhali athile, azovimbela ukukhula kwamagciwane.
2. Izitsha ezisanda kuthengwa zamasiko kufanele zigezwe ngamanzi ashisayo kuqala, bese zicwiliswa ku-1% noma 2% isixazululo se-hydrochloric acid amahora amaningana ukuze kukhishwe izinto zamahhala ze-alkaline, bese zihlanzwa kabili ngamanzi a-distilled.
3. Ukuze uhlakulele amagciwane, sebenzisa umusi womfutho ophezulu (ngokuvamile u-6.8 * 10 Pa high pressure steam ukuya kumandla we-5), yifake inzalo imizuzu engu-30 ku-120 ℃, uyomise ekamelweni lokushisa, noma usebenzise ukushisa okomile ukuze uyivale, okungukuthi, faka isidlo samasiko kuhhavini, usigcine amahora angu-2 ku-120 ℃, bese ubulala amazinyo e-bacterial.
4. Izitsha ezifakwe inzalo zamasiko zingasetshenziselwa ukujova nokulima.
Isikhathi sokuthumela: Dec-28-2022