Video: Yuav ua li cas yog ib tug absorption spectrum tsim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib nqus spectrum tshwm sim thaum lub teeb dhau los ntawm qhov txias, dilute roj thiab atoms hauv cov pa nqus ntawm cov yam ntxwv zaus; txij li thaum lub re-emitted lub teeb yog tsis zoo li yuav emitted nyob rau hauv tib txoj kev raws li lub nqus tau photon, qhov no ua rau cov kab tsaus nti (tsis muaj lub teeb) hauv lub spectrum.
Tib neeg kuj nug, dab tsi yog qhov nqus spectrum?
Kev txhais ntawm nqus spectrum .: electromagnetic teb spectrum nyob rau hauv uas ib tug txo nyob rau hauv kev siv ntawm hluav taws xob ntawm tej wavelengths los yog ntau yam ntawm wavelengths yam ntxwv ntawm ib tug absorbing tshuaj yog manifested tshwj xeeb tshaj yog raws li ib tug qauv ntawm cov kab tsaus nti los yog bands.
Tsis tas li ntawd, dab tsi yog cov emissions tas mus li thiab nqus spectra lawv li cas? Ib tso pa tawm kab tshwm sim thaum ib qho hluav taws xob poob mus rau qis dua orbit ncig lub nucleus ntawm lub atom thiab looses zog. Ib nqus kab tshwm sim thaum electrons txav mus rau lub orbit siab dua los ntawm absorbing zog. Txhua lub atom muaj qhov sib txawv ntawm lub orbits thiab tuaj yeem emit lossis nqus tau qee lub zog lossis wavelengths.
Kuj paub yog, qhov nqus spectrum zoo li cas?
Absorption spectrum yog qhov koj tau txais thaum koj ci lub teeb dawb los ntawm cov pa roj. Qee cov xim (lub zog) ntawm lub teeb yog nqus tau los ntawm cov pa roj, ua rau cov kab dub (khib nyiab) tshwm nyob rau hauv lub spectrum . Lub teeb uas yog emissions phim lub zog theem ntawm cov atoms, thiab thiaj li muaj tej xim.
Dab tsi yog qhov nqus spectrum siv rau?
Absorption spectroscopy yog ua los ntawm electromagnetic spectrum . Absorption spectroscopy yog ua hauj lwm raws li ib tug analytical chemistry cuab tam los txiav txim seb lub xub ntiag ntawm ib yam khoom nyob rau hauv ib tug qauv thiab, nyob rau hauv ntau rooj plaub, kom xam tus nqi ntawm cov khoom tam sim no.
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