Spectroscopy vs Spectrometry
Spectroscopy thiab spectrometry yog ob qho kev sib tham dav dav hauv cov haujlwm xws li chemistry thiab astronomy. Kab lus no hais txog cov hauv paus, qhov zoo sib xws, thiab qhov sib txawv ntawm spectrometry thiab spectroscopy.
Spectroscopy
Spectroscopy yog kev kawm txog kev sib cuam tshuam ntawm cov teeb meem thiab lub zog hluav taws xob. Qhov no tuaj yeem txhais tau tias yog kev tshawb fawb ntawm kev kawm txog kev sib cuam tshuam ntawm cov teeb meem thiab hluav taws xob. Yuav kom nkag siab spectroscopy, ib tug yuav tsum xub to taub spectrum. Lub teeb pom kev yog ib daim ntawv ntawm electromagnetic tsis. Muaj lwm hom EM nthwv dej xws li X-Rays, Microwaves, Xov tooj cua nthwv dej, Infrared thiab Ultraviolet rays. Lub zog ntawm cov nthwv dej no yog nyob ntawm lub wavelength lossis qhov zaus ntawm nthwv dej. Cov nthwv dej ntau zaus muaj ntau lub zog, thiab cov nthwv dej tsis tshua muaj zog tsawg. Lub teeb nthwv dej yog tsim los ntawm cov pob ntawv me me ntawm cov nthwv dej lossis lub zog hu ua photons. Rau ib tug monochromatic rays, lub zog ntawm ib tug photon yog tsau. Lub electromagnetic spectrum yog cov zajlus ntawm kev siv zog piv rau zaus ntawm cov photons. Thaum ib lub teeb ntawm cov nthwv dej uas muaj tag nrho cov wavelengths dhau los ntawm qee cov kua lossis roj, cov ntawv cog lus lossis cov khoom siv hluav taws xob hauv cov ntaub ntawv no nqus qee cov photons los ntawm cov nqaj. Nws yog vim lub quantum mechanical effect uas tsuas yog photons nrog qee lub zog tau nqus. Qhov no tuaj yeem nkag siab los ntawm kev siv lub zog ntawm cov duab kos duab ntawm atoms thiab molecules. Spectroscopy tab tom kawm txog qhov xwm txheej spectrums, emitted spectrums thiab absorbed spectrums ntawm cov ntaub ntawv.
Spectrometry
Spectrometry yog txoj kev siv rau kev kawm ntawm qee yam spectrums. Ion-mobility spectrometry, mass spectrometry, Rutherford backscattering spectrometry, thiab neutron triple axis spectrometry yog cov ntaub ntawv tseem ceeb ntawm spectrometry. Nyob rau hauv cov ntaub ntawv no, ib tug spectrum tsis tas txhais hais tias ib zajlus ntawm kev siv piv rau zaus. Piv txwv li, qhov spectrum rau huab hwm coj spectrometry yog cov phiaj xwm ntawm kev siv zog (tus naj npawb ntawm qhov xwm txheej) piv rau qhov loj ntawm cov khoom. Spectrometers yog cov cuab yeej siv hauv spectrometry. Kev ua haujlwm ntawm txhua hom ntsuas yog nyob ntawm daim ntawv spectrometry siv hauv qhov ntsuas. Spectrophotometry yog qhov ntsuas ntau ntawm qhov kev xav lossis kev sib kis ntawm cov khoom siv raws li kev ua haujlwm ntawm wavelength. Rau thaj tsam pom, lub teeb dawb zoo meej muaj tag nrho cov wavelengths hauv cheeb tsam. Piv txwv li, lub teeb dawb yog xa los ntawm kev daws teeb meem absorbing photons nrog lub wavelength ntawm 570 nm. Qhov no txhais tau tias liab photons ntawm lub spectrum yog tam sim no txo. Qhov no yuav ua rau muaj qhov khoob lossis txo qis ntawm 570 nm cim ntawm cov phiaj xwm kev siv zog piv rau lub wavelength. Qhov kev siv ntawm lub teeb dhau, raws li kev faib ua feem rau lub teeb pom kev, tuaj yeem npaj rau qee qhov kev paub ntau ntxiv, thiab qhov tshwm sim los ntawm cov qauv tsis paub siv tau los txiav txim siab qhov concentration ntawm cov tshuaj.
Dab tsi yog qhov txawv ntawm Spectrometry thiab Spectroscopy?
• Spectroscopy yog kev tshawb fawb ntawm kev kawm txog kev sib cuam tshuam ntawm cov teeb meem thiab lub zog hluav taws xob thaum spectrometry yog txoj hauv kev siv kom tau txais qhov ntsuas ntau ntawm cov spectrum.
• Spectroscopy tsis ua kom muaj txiaj ntsig. Nws yog theoretical mus kom ze ntawm science. Spectrometry yog daim ntawv thov siv tau qhov twg cov txiaj ntsig tau tsim.
