Cov khoom
Coliform Group Enzvme substrate detection reagent Rau kev kuaj dej
Txoj Cai Ua Haujlwm
| Cim | Cov khoom no yog cov khoom dawb los yog lub teeb daj |
| Clarification degree | Tsis muaj xim lossis daj me ntsis |
| PH | 7.0-7.8 Nws |
| Wyim | 2.7g 0.5g |
| Cia | Lub sij hawm ntev cia, ziab, sealing thiab zam lub teeb cia ntawm 4 ° C - 8 ° C |
| Lub sij hawm siv tau | 1 xyoo |
| Working Txoj Cai | Hauv cov qauv dej uas muaj tag nrho cov kab mob coliform, cov kab mob hauv lub hom phiaj tau coj mus rau hauv ONPG-MUG nruab nrab ntawm 36 土1C.Qhov tshwj xeeb enzyme betagalactosidase tsim los ntawm tag nrho cov kab mob coliform tuaj yeem decompose cov xim substrate ntawm ONPG-MUG nruab nrab, uas ua rau kab lis kev cai nruab nrab daj;Lub caij no, Escherichia coli tsim ib qho tshwj xeeb beta-glucuronase kom decompose cov fluorescent substrate MUG hauv ONPG-MUG nruab nrab thiab tsim cov yam ntxwv fluorescence.Tib lub hauv paus ntsiab lus, cov pab pawg neeg siab ntev coliform (fecal coliform pawg) yuav decompose cov xim substrate ONPG hauv ONPG-MUG nruab nrab ntawm 44.5 土 0 .5 ° C, ua rau nruab nrab daj
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| Ntim specification | 200 / thawv |
Txoj kev siv Qualitative detection
Kauj Ruam 1: Ntxiv reagent hauv 100ml dej qauv, yaj nws.thiab kab lis kev cai 24h ntawm 36 士 1 ° C
Kauj ruam 2:
Nyeem tau Colorless = negative
Yellow = tag nrho coliform zoo
Yellow + fluorescence = Escherichia coli zoo
Lus Cim: Cov pab pawg neeg ua kom sov coliform (fecal coliform) yuav tsum tau coj mus kuaj ntawm 44.5 士 0 .5 ° C 24h, thiab daj yog qhov zoo.
Quantitative nrhiav tau
1.Ntxiv reagent hauv 100ml dej qauv, yaj nws.
2.Pour rau hauv 51 lossis 97 qhov nrhiav kom pom phaj
3.Siv LK sealer los kaw lub phaj kuaj xyuas, thiab cog 24h ntawm 36 ° C.
4. Cov txiaj ntsig zoo tau siv los kuaj xyuas MPN cov lus suav.
Lus Cim: Cov pab pawg neeg ua kom sov siab coliform (fecal coliform pawg) yuav tsum tau coj mus kuaj ntawm 44.5 士 0.5 ° C 24h, thiab lub qhov daj yog qhov zoo, thiab cov ntaub ntawv MPN sib raug tau pom.
