Phenol liab qhia dab tsi?
Phenol liab qhia dab tsi?

Video: Phenol liab qhia dab tsi?

Video: Phenol liab qhia dab tsi?
Video: Saib Hmoov 2023 | Keeb Chiv Liab Xyoo yuav ceev faj dab tsi | Keeb Chiv Vis Los 2024, Kaum ib hlis
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Phenol Liab Broth yog ib lub hom phiaj sib txawv qhov nruab nrab feem ntau siv los sib txawv gram negative enteric kab mob. Nws muaj peptone, phenol liab (ib pH qhia), ib lub raj Durham, thiab ib qho carbohydrate. Phenol liab yog qhov ntsuas pH uas hloov daj hauv qab pH ntawm 6.8 thiab fuchsia saum pH ntawm 7.4.

Raws li, phenol liab siv rau dab tsi?

Phenol liab yog dej-soluble dye siv li pH qhia, hloov ntawm daj mus rau liab tshaj pH 6.6 mus rau 8.0, thiab tom qab ntawd tig xim liab liab saum pH 8.1. Yog li ntawd, phenol liab tuaj yeem yog siv li pH qhia dye nyob rau hauv ntau yam kev kuaj mob thiab cell biology kuaj.

Tom qab ntawd, lo lus nug yog, nws txhais li cas thaum phenol liab tig daj? Phenol liab yog pH qhov taw qhia uas yog daj ntawm pH hauv qab 6.8 thiab liab ntawm pH saum toj no 7.4 nrog sib txawv ntxoov los ntawm daj rau liab nruab nrab ntawm cov qib pH. Yog tias qhov ntsuas tau tig daj hauv lub raj mis no txhais tau tias Nws tau dhau los ua paug nrog qee yam uas ua rau pH ntau acidic thiab coj pH qis dua 6.8.

Hauv qhov no, dab tsi ua rau xim hloov hauv phenol liab?

Cov phenol liab hloov xim thaum koj tshuab rau nws, vim koj tab tom qhia cov pa roj carbon dioxide rau qhov sib tov. Phenol liab hloov kom daj nyob rau hauv pH qis dua 7, yog li qhov kev daws teeb meem tig daj yog qhov qhia txog acidic (qis dua 7 pH).

Puas yog phenol liab txaus ntshai?

Phenol Liab yog ob qho tib si corrosive thiab tshuaj lom. Qhov no txhais tau hais tias yog nws kov daim tawv nqaij nws tuaj yeem hlawv los ntawm nws thiab yog tias nqos nws tuaj yeem ua rau muaj teeb meem. Kev tuag tau tshwm sim yog tias nws nyob ntawm ntau dua 25% ntawm thaj chaw ntawm daim tawv nqaij lossis yog tias tsawg li 15 mL tau noj.

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