Video: Cov tshuaj twg siv hauv Kastle Meyer kuaj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov kev xeem Kastle-Meyer tso siab rau hlau hauv hemoglobin , uas yog hlau - muaj ib feem ntawm liab ntshav cell, txhawb oxidation ntawm phenolphthalin rau phenolphthalein . Phenolphthalin yog xim tsis muaj xim, tab sis nyob rau hauv lub xub ntiag ntawm ntshav thiab hydrogen peroxide , nws hloov mus rau phenolphthalein , uas ua rau cov kua txob liab.
Yog li ntawd, Kastle Meyer xeem siv rau dab tsi?
Cov Kastle – Meyer xeem yog cov ntshav siab xeem , thawj zaug piav nyob rau hauv 1903, nyob rau hauv uas cov tshuaj qhia phenolphthalein yog siv rau kuaj pom qhov muaj peev xwm ntawm hemoglobin.
Ib tug kuj tseem nug, cov tshuaj dab tsi tuaj yeem ua rau qhov tsis zoo ntawm Kastle Meyer qhov kev xeem? Qhov no xeem muaj qee qhov kev txwv. Namely, cov enzymes hauv qee cov zaub (tshwj xeeb yog txiv lws suav, qos yaj ywm, dib, horseradish) tuaj yeem ua rau qhov kev kuaj pom tsis tseeb . Lwm yam uas tsis yog ntshav tshuaj uas muab cov txiaj ntsig zoo yog: ib co txiv hmab txiv ntoo extracts, ib co metallic tshuaj , los yog lwm yam peroxidase zoo li tshuaj.
Hauv qhov no, Kastle Meyer reagent yog dab tsi?
Kastle – Meyer reagent muaj qhov txo qis phenolphthalein qhia hauv cov tshuaj yooj yim. Tsuas yog so ib qho kev xav txog ntshav nrog paj rwb swab, ntxiv ib qho poob ntawm reagent , thiab tom qab ntawd siv ib tee ntawm hydrogen peroxide. Yog hais tias lub swab hloov xim liab sai sai, nws zoo rau cov ntshav!
phenolphthalein kuaj ntshav li cas?
Phenolphthalein ( Ntshav ) Phenolphthalein yog ib qho kev xeem presumptive uas reacts nrog lub heme molecule tam sim no nyob rau hauv ntshav . Cov tshuaj tiv thaiv zoo muab cov xim liab. Thaum zoo phenolphthalein tshuaj tiv thaiv yog qhia txog ntshav , nws tsuas yog ib qho kev ntsuam xyuas zoo thiab qhov tsis tseeb yog qhov ua tau.
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