Video: Vim li cas infrared spectroscopy tseem ceeb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nws yog siv los ntawm chemists los txiav txim siab ua haujlwm pab pawg hauv cov molecules. IR Spectroscopy ntsuas qhov vibrations ntawm atoms, thiab raws li qhov no nws muaj peev xwm txiav txim siab cov pab pawg ua haujlwm. 5 Feem ntau, cov ntawv cog lus muaj zog thiab lub teeb atoms yuav vibrate ntawm lub siab stretching zaus (wavenumber).
Hais txog qhov no, dab tsi yog infrared spectroscopy txoj cai?
Cov IR spectroscopy txoj kev xav siv lub tswv yim uas molecules nyiam nqus cov zaus ntawm lub teeb uas yog yam ntxwv ntawm cov qauv sib xws ntawm cov molecules. Lub zog yog vam khom rau cov duab ntawm cov molecular nto, qhov cuam tshuam vibronic coupling, thiab cov huab hwm coj sib raug rau cov atoms.
Ib tug kuj yuav nug, IR spectroscopy ua haujlwm li cas? Infrared ( IR ) spectroscopy siv infrared hluav taws xob kom excite lub molecules ntawm ib tug compound thiab generates ib infrared spectrum ntawm lub zog absorbed los ntawm ib tug molecule raws li ib tug muaj nuj nqi ntawm lub zaus los yog wavelength ntawm lub teeb. Piv txwv li, O-H daim ntawv cog lus muaj zog dua C-H daim ntawv cog lus, yog li O-H daim ntawv cog lus vibrate siab dua zaus.
Tib neeg kuj nug, vim li cas FTIR spectroscopy siv?
Fourier Hloov-Infrared Spectroscopy ( FTIR ) yog cov txheej txheem analytical siv txhawm rau txheeb xyuas cov khoom siv organic (thiab qee zaus inorganic). Cov txheej txheem no ntsuas qhov nqus ntawm infrared hluav taws xob los ntawm cov khoom siv piv txwv piv rau wavelength. Infrared absorption bands txheeb xyuas cov khoom molecular thiab cov qauv.
Dab tsi yog infrared siv rau?
Kev siv ntawm Infrared Technology Radiation Ib qho ntawm feem ntau siv ntawm infrared hluav taws xob yog nyob rau hauv tshav kub-rhiab thermal imaging koob yees duab. Cov no tuaj yeem yog siv rau kawm tib neeg thiab tsiaj lub cev kub qauv, tab sis ntau zaus, lawv yog siv li koob yees duab hmo ntuj.
Pom zoo:
Vim li cas nws tseem ceeb kom paub tias koj txhais li cas ntxiv?
Txhais qhov seem. Kev txhais cov lus tseem ceeb yog qhov tseem ceeb thaum koj faib ua lej vim tias koj tuaj yeem tau txais qhov teeb meem tsis raug yog tias koj tsis txhais cov seem kom raug. Piv txwv li, nyob rau hauv ib lo lus teeb meem koj yuav tsum tau faib thiab faib tawm rau koj nrog ib tug seem thiab koj yuav tsum tau muab sau tseg
Vim li cas qhov tseem ceeb ntawm qhov tseem ceeb?
Thaum koj pom tus nqi kiag li hauv qhov teeb meem lossis qhov sib npaug, nws txhais tau hais tias txhua yam nyob hauv tus nqi tiag tiag yog qhov zoo. Cov txiaj ntsig tsis zoo feem ntau siv rau hauv cov teeb meem cuam tshuam nrog kev nyob deb thiab qee zaum siv nrog qhov tsis sib xws. Qhov ntawd yog qhov tseem ceeb uas yuav tsum nco ntsoov nws zoo li qhov deb ntawm xoom
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Dab tsi yog qhov zoo ntawm Raman spectroscopy tshaj infrared spectroscopy?
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Yuav ua li cas yog vim li cas tus qauv ntawm ib qho enzyme tseem ceeb heev rau nws txoj haujlwm hauv cov khoom muaj sia?
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