Laboratory siv cov vitamin C
1 、 Kev tshuaj ntsuam xyuas reagent thiab cov txheej txheem tshuaj tiv thaiv
Txo tus neeg sawv cev thiab daim npog qhov ncauj
Vitamin C feem ntau yog siv los ua tus neeg saib xyuas muaj zog hauv chav kuaj kom tsis txhob muaj cov tshuaj oxidizing (xws li cov khoom siv iodine), thiab nws qhov txo qis tuaj yeem pom pom los ntawm kev sim iodine fading.
Hauv complexometric titration, vitamin C tuaj yeem ua tus neeg sawv cev npog kom tshem tawm kev cuam tshuam ntawm cov hlau ions ntawm kev tshawb pom.
Kev tshawb fawb txog Redox Reaction
Kev txiav txim siab ntau ntawm vitamin C cov ntsiab lus los ntawm oxidation-txo cov tshuaj tiv thaiv nrog iodine elemental (xws li iodometric method) yog siv dav hauv kev tshuaj xyuas cov khoom noj thiab cov qauv lom neeg.
2 、 Kev tshawb pom technology thiab daim ntawv thov scenarios
Kev txhim kho ntawm txoj kev tshawb nrhiav kom muaj nuj nqis
Biomedical xeem: siv UV spectrophotometric, high-performance kua chromatography (HPLC), thiab lwm yam., kom raug txiav txim siab cov vitamin C cov ntsiab lus nyob rau hauv cov ntshav thiab cov ntaub so ntswg, pab soj ntsuam kuaj mob (xws li scurvy).
Khoom noj khoom haus thiab tshuaj pleev ib ce tsom xam: Ntsuam xyuas qhov ruaj khov thiab khoom noj muaj txiaj ntsig ntawm vitamin C hauv txiv hmab txiv ntoo, zaub, thiab tshuaj pleev ib ce siv tooj liab oxidation colorimetric lossis kua chromatography txoj kev.
Plant Physiology Research
Tshawb xyuas cov vitamin C cov ntsiab lus hauv cov ntaub so ntswg los soj ntsuam qhov cuam tshuam ntawm ib puag ncig kev ntxhov siab (xws li drought, hnyav hlau ua paug) ntawm cov nroj tsuag antioxidant systems.
3 、 Txheej txheem kev npaj thiab kev tsim kho
Kev ua kom zoo ntawm cov txheej txheem kuaj kev npaj
Kev siv lub tshuab ziab khaub ncaws kom qhuav los txhim kho kev ruaj ntseg ntawm cov vitamin C reagents, thiab tshem tawm impurities los ntawm activated carbon pretreatment kom paub tseeb tias qhov tseeb.
Tsim cov ntawv noj tshuaj tshiab xws li enteric coated formulations thiab granules los txhim kho bioavailability ntawm vitamin C.
Kev tsim cov khoom lag luam thiab cov khoom siv reagent
Standardized reagent cov khoom siv (xws li vitamin C kuaj cov khoom siv) ua ke nrog kev txawj ntse algorithms pab kom muaj txiaj ntsig zoo ntawm cov qauv loj.
4 、 Kev sim tshuaj xyuas thiab kev tswj kom zoo
Methodology validation
Txheeb xyuas qhov tseeb ntawm txoj kev tshawb pom los ntawm kev sim rov ua dua tshiab (rov qab tus nqi ntawm 95.6% ~ 101.0%).
Sib piv ntau txoj hauv kev xws li 2,4-dinitrophenylhydrazine colorimetric method thiab iodometric method kom ntseeg tau qhov kev ntseeg tau ntawm cov txiaj ntsig.
Tswj kev cuam tshuam yam
Ua kom zoo rau cov tshuaj tiv thaiv (xws li pH thiab qhov kub thiab txias) kom txo qis kev cuam tshuam los ntawm lwm cov tshuaj txo qis (xws li glutathione).
Cov ntsiab lus: Vitamin C muaj ob qho tib si reagent muaj nuj nqi thiab kev tshawb fawb cov khoom hauv chav kuaj. Nws cov thev naus laus zis tshawb pom, txheej txheem npaj, thiab kev tshawb fawb txog kev siv tshuaj tiv thaiv muab kev txhawb nqa tseem ceeb rau biomedical, zaub mov science, thiab lwm yam haujlwm.