Cov txheej txheem:
Video: Cov hom microtome yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qee yam ntawm Microtomes peb suav nrog yog raws li hauv qab no:
- Rotary Microtome .
- khov Microtome .
- Rotary Senior Microtome .
- Cryostat Microtome .
- Ntoo Microtome .
- zawv zawg Microtome .
Tom qab ntawd, microtome yog dab tsi thiab nws hom?
Rotary, Sledge, ultra, vibrating, saw, laser microtome yog qhov txawv hom . ntawm microtome siv. ? Microtome riam yog qhov cuab yeej tseem ceeb los txiav cov ntu nyias nyias ntawm cov ntaub so ntswg.
Tom qab ntawd, lo lus nug yog, Microtomy yog dab tsi thiab sau lawv lub hauv paus ntsiab lus thiab txoj hauv kev? Microtomy yog a txoj kev rau kev npaj ntawm nyias seem rau cov ntaub ntawv xws li cov pob txha, minerals thiab cov hniav, thiab lwm txoj rau electropolishing thiab ion milling. Cov ntu microtome tuaj yeem ua kom nyias txaus rau ntu tib neeg cov plaub hau hla nws dav, nrog seem thickness ntawm 50 nm thiab 100 Μm.
Tom qab, lo lus nug yog, muaj pes tsawg hom microtome muaj?
Muaj ob qho yooj yim hom ntawm paraffin microtome : rotary thiab zawv zawg microtome.
cryostat microtome yog dab tsi?
Cryostat yog siv nyob rau hauv cov tshuaj los txiav histological slides. Lawv feem ntau yog siv rau hauv cov txheej txheem hu ua frozen section histology (saib Frozen section process). Cov cryostat yog qhov tseem ceeb ntawm ultrafine "deli-slicer", hu ua a microtome , muab tso rau hauv lub freezer.
Pom zoo:
Dab tsi yog Qhov Ib Feem Cuam Tshuam ntawm cov khoom hydrogen hauv cov methane ch4 yog dab tsi?
Cov feem pua ntawm cov ntsiab lus los ntawm Element Element Symbol Mass Percent Hydrogen H 25.132% Carbon C 74.868%
Cov xim dab tsi yog cov hlwb feem ntau ua ntej siv thawj cov xim rau cov txheej txheem Gram stain?
Ua ntej, siv lead ua violet, thawj stain, yog siv rau lub tshav kub-tso smear, muab tag nrho cov hlwb xim liab
Dab tsi yog cov khoom ntawm phosphorous acid Dab tsi yog nws cov mis?
Phosphorous acid (H3PO3) tsim cov ntsev hu ua phosphites, kuj siv los txo cov neeg ua haujlwm. Nws yog npaj los ntawm dissolving tetraphosphorus hexoxide (P4O6) los yog phosphorus trichloride (PCl3) hauv dej
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Dab tsi yog junk DNA thiab nws lub hom phiaj yog dab tsi?
Hauv cov noob caj noob ces, lo lus khib nyiab DNA hais txog thaj tsam ntawm DNA uas tsis yog coding. Qee qhov DNA noncoding no yog siv los tsim cov khoom tsis yog RNA xws li hloov RNA, tswj RNA thiab ribosomal RNA