2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov nyob ruaj khov theem yog cov theem uas tsis txav thiab mobile theem yog cov theem uas txav. Cov mobile theem txav los ntawm nyob ruaj ruaj khaws cov khoom sib xyaw kom raug kuaj.
Tom qab ntawd, ib tus tuaj yeem nug, dab tsi yog txhais tau los ntawm theem nyob ruaj khov thiab theem mobile hauv chromatography?
Chromatography yog siv los cais cov khoom sib tov rau hauv lawv cov khoom. Lawv txhua tus muaj ib tug nyob ruaj ruaj (ib qho khoom, lossis cov kua dej txhawb rau ntawm cov khoom) thiab a mobile theem (ua kua los yog roj). Cov mobile theem ntws los ntawm nyob ruaj khov theem thiab nqa cov khoom ntawm qhov sib tov nrog nws.
Kuj Paub, dab tsi yog qhov chaw nres tsheb ntawm chromatography? chromatography . Hauv kev sib cais thiab purification: Chromatography . Feem ntau, cov nyob ruaj khov theem yog aporous khoom (piv txwv li, iav, silica, los yog alumina) uas tau ntim rau hauv iav los yog hlau raj los yog uas ua rau cov phab ntsa ntawm ib tug qhib-tubecapillary. Qhov mobile theem ntws los ntawm lub txaj packed orcolumn.
Kuj paub, qhov txawv ntawm qhov chaw nres tsheb thiab theem mobile yog dab tsi?
Cov nyob ruaj khov theem yog cov khoom khi rau qhov tsis txav ntawm cov chromatograph. Cov txheej txheem rau beseparated kauj ruam ntawm lub mobile theem mus rau nyob ruaj ruaj ib. Lawv siv nyob ntawd txawv lub sij hawm ua ntej kauj ruam rov qab mus rau lub mobile theem . Dab tsi yog cov qhov sib txawv ntawm tus mobile theem thiab nyob ruaj khov theem ?
Dab tsi tshwm sim thaum lub sij hawm nyob ruaj khov?
… kev loj hlob yog ua raws li cov nyob ruaj ruaj , hauv uas qhov loj ntawm cov pejxeem ntawm cov kab mob tseem nyob tas li, txawm tias qee lub hlwb txuas ntxiv faib thiab lwm tus pib tuag. Cov nyob ruaj khov theem yog ua raws li txoj kev tuag theem , hauv uas cov cell tuag hauv cov pejxeem coob tshaj qhov…
Pom zoo:
Dab tsi yog qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov ntab?
Integers thiab floats yog ob yam sib txawv ntawm cov ntaub ntawv tus lej. Ib tus lej (feem ntau hu ua anint) yog tus lej tsis muaj tus lej lej. Float isa floating-point number, uas txhais tau hais tias nws yog tus lej uas muaj tus lej lej. Floats siv thaum xav tau ntau dua
Dab tsi yog qhov txawv ntawm qhov chaw thiab qhov chaw?
Raws li lub npe qhov txawv ntawm qhov chaw thiab qhov chaw yog qhov chaw yog (tso tseg) kev tu siab, kev tu siab orsite tuaj yeem yog qhov chaw uas txhua yam raug kho; qhov xwm txheej; txoj hauj lwm hauv zos; xws li, qhov chaw ntawm lub nroog los yog ntawm ahouse thaum qhov chaw yog ib qho chaw tshwj xeeb lossis qhov chaw nyob hauv lub cev
Dab tsi yog qhov kev hloov pauv ntawm cov khoom uas txav ntawm qhov chaw mus rau qhov chaw ntawm - 12 m?
Kev piav qhia: Qhov kev txav ntawm ib qho khoom txav ntawm qhov chaw mus rau qhov chaw ntawm − 12 m yog 12 meters. Qhov kev ncua deb ntawm lub hauv paus chiv keeb mus rau qhov siab tshaj plaws txoj hauj lwm yog hu ua displacement ntawm ib yam khoom. Qhov siab tshaj plaws kev hloov pauv ntawm cov khoom nyob rau hauv ib nthwv dej yog hu ua crest thiab qhov tsawg kawg nkaus hloov pauv yog hu ua trough
Dab tsi yog txhais los ntawm qhov chaw nres tsheb?
Nyob ruaj ruaj-theem. Noun. (pluralstationary phases) (chemistry) Cov khoom los yog kua theem ntawm chromatography system uas cov ntaub ntawv yuav tsum tau sib cais yog xaiv adsorbed
Thaum koj sawv hauv lub tsheb ciav hlau subway thiab lub tsheb ciav hlau nres tam sim ntawd?
Thaum koj sawv hauv lub tsheb ciav hlau subway, thiab lub tsheb ciav hlau nres tam sim ntawd, koj lub cev tseem mus tom ntej. Tom qab koj pib koj lub tsheb kauj vab, thaum koj muab roj ntau dua, nws mus sai dua. Ib tug pitched baseball mus sai dua ib qho uas maj mam muab pov