Yuav Siv Petri Tais li cas

Petri phaj yog ib yam khoom siv hauv chav kuaj siv rau cov kab mob kab mob lossis kab mob ntawm tes. Nws muaj ib lub tiaj disc-zoo li hauv qab thiab lub hau, thiab feem ntau yog ua los ntawm iav los yog yas. Cov ntaub ntawv ntawm cov tais diav petri yog muab faib ua ob pawg, feem ntau yog yas thiab iav. iav tuaj yeem siv rau cov khoom siv cog, kab lis kev cai microbial, thiab kev coj noj coj ua ntawm cov tsiaj hlwb. Cov yas tuaj yeem ua los ntawm polyethylene, thiab muaj cov khoom siv pov tseg thiab siv ntau yam, uas tsim nyog rau kev kuaj inoculation, streaking, thiab cov kab mob cais tawm, thiab tuaj yeem siv rau kev cog qoob loo ntawm cov khoom cog.

Feem ntau, muaj plaub kauj ruam ntawm kev ntub dej, txhuam hniav, ntxuav, thiab ntxuav.

1. Soaking: Tshiab los yog siv khob iav yuav tsum tau soaked nyob rau hauv dej huv ua ntej kom soften thiab yaj cov attachments. Cov iav tshiab yuav tsum tau muab yaug nrog cov kais dej ua ntej siv, thiab tom qab ntawd tsau rau 5% hydrochloric acid thaum hmo ntuj; siv cov iav iav feem ntau yog nrog cov protein ntau thiab roj, thiab nws tsis yooj yim rau txhuam tawm tom qab ziab, yog li nws yuav tsum tau muab tso rau hauv dej huv tam sim ntawd rau txhuam tom qab siv.

2. Kev txhuam hniav: Muab cov khob ntim dej tso rau hauv cov tshuaj ntxuav tes thiab txhuam nrog txhuam txhuam. Tsis txhob tso cov ces kaum tuag, thiab tiv thaiv kev puas tsuaj rau qhov chaw tiav ntawm cov tais diav. Ntxuav lub khob iav, qhuav nws, thiab npaj rau pickling.

3. Pickling: Pickling yog cov txheej txheem ntawm immersing cov tais diav saum toj no hauv cov tshuaj ntxuav, los yog cov kua qaub, uas tshem tawm cov khoom seem ntawm cov tais diav los ntawm kev muaj zog oxidation ntawm cov kua qaub. Pickling yuav tsum tsis pub tsawg tshaj li rau teev, feem ntau thaum hmo ntuj lossis ntev dua. Ceev faj thaum tuav cov tais diav.

4. Rinsing: Cov tais diav tom qab txhuam thiab pickling yuav tsum tau muab yaug nrog dej. Txawm hais tias cov tais diav tau muab yaug kom huv si tom qab pickling ncaj qha cuam tshuam rau kev vam meej lossis tsis ua tiav ntawm kab lis kev cai ntawm tes. Manually ntxuav cov tais diav. Txhua lub tais yuav tsum tau rov ua dua" puv-emptied" tsawg kawg yog 15 zaug, thiab thaum kawg muab tso rau hauv dej distilled rau 2-3 zaug, qhuav los yog qhuav thiab ntim rau tom qab siv.