XD90440 Vitamin B12 Cas: 68-19-9 Tsaus liab crystalline hmoov, los yog tsaus liab muaju
| Catalog Number | xwm 90440 |
| Khoom npe | Vitamin B12 |
| CAS | 68-19-9 ib |
| Molecular Formula | C63H88CON14O14P |
| Molecular Luj | 1355.36 Nws |
Khoom Specification
| Qhov tshwm sim | Tsaus liab crystalline hmoov, los yog tsaus liab crystals |
| Assay | 99% |
| Xaus | Ua raws li EP7.0 |
| Kev txheeb xyuas | Ua raws li UV thiab TLC |
| Tag nrho cov phaj suav | 800cfu/g max |
| E. Coli | Tsis zoo |
| Cov kab mob endotoxin | 0.4EU/mg max |
| Poob rau ziab | <12% |
| Yam khoom muaj feem | 3.0% max |
| Residual Solvents | Acetone: ≤0.5% |
| Poov & Pwm | 80cfu/g max |
| Dawb Pyrogen | Ua raws li EP 7.0 |
Cov kab mob biomass sau los ntawm cov kab mob hauv cov kab mob ntawm cov genera Sphaerotilus thiab Leptothix tau sau los ntawm lub roob siab dej ntuj.Cov txheej txheem kev cai lij choj thiab oxide theem ntawm cov khoom lag luam tom qab xaiv cov kab mob ntawm ob qhov kev xaiv sib txawv siv kev tshuaj ntsuam xyuas neutron activation (NAA), electron microscopy (SEM, TEM), thiab X-ray diffraction (XRD) tau kawm.Ib qib siab ntawm cov hlau tau nthuav tawm los ntawm NAA cov txheej txheem hauv kev cog qoob loo cais raws li piv rau cov qauv siv los ntawm xwm.Peb hom hlau oxide tebchaw tau tsim tom qab cog rau hauv Adler qhov nruab nrab: lepidocrocite (γ-FeOOH), magnetite (Fe3O4), thiab goethite (α-FeOOH).Kev cog qoob loo hauv kev sib cais nruab nrab tau txais ib theem, uas ntawm goethite, tsis suav nrog ib qho piv txwv nrog qhov sib txawv ntawm lepidocrocite.XRD thiab EM kev tshawb nrhiav pom tias cov biogen oxides yog nanosized.Peb txoj kev tshawb fawb ua piv txwv txog qhov muaj peev xwm ntawm biotechnology mus kom ze rau kev tau txais, nyob rau hauv cov khoom siv dag zog, ntau cov khoom siv hlau uas muaj cov khoom siv uas tuaj yeem siv ntxiv rau hauv cov nano- thiab biotechnologies tsim nyog.
