Video: Vim li cas peb thiaj siv qhov khoob hauv spectrophotometer?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A dawb paug kub yog siv mus calibrate spectrophotometer nyeem: lawv sau cov ntsiab lus teb ntawm ib puag ncig-cov cuab yeej-cov qauv qauv. Nws yog analogous rau "zeroing" ib teev ua ntej hnyav. Khiav dawb paug tso cai koj los sau cov kev cuam tshuam ntawm cov cuab yeej tshwj xeeb ntawm koj cov ntawv nyeem.
Yog li, lub hom phiaj ntawm qhov khoob hauv spectrophotometric yog dab tsi?
Ib ' dawb paug 'xov in spectrophotometric orany lwm daim ntawv ntawm analytical chemistry yog siv los txiav txim siab npaum li cas, yog tias muaj, cov txiaj ntsig ntawm qhov tshwm sim yog pab los ntawm cov khoom siv tsis yog cov khoom raug kuaj - piv txwv li, cov kuab tshuaj, thiab lwm yam.
Ib tug kuj yuav nug, dab tsi yog lub hom phiaj ntawm spectrometer? A spectrometer yog ib qho cuab yeej siv los soj ntsuam qhov teeb pom kev zoo li a muaj nuj nqi ntawm nws feem ntawm theelectromagnetic spectrum, feem ntau nws wavelength, zaus, orenergy. Lub spectroscope yog ib yam khoom uas ntsuas lub spectrum ntawm lub teeb.
Ua raws li qhov xav tau, lub hom phiaj ntawm qhov khoob hauv UV VIS spectrophotometer yog dab tsi?
A dawb paug yog ib qho piv txwv uas muaj txhua yam tshwj tsis yog rau kev txheeb xyuas ntawm kev txaus siab. Piv txwv li, yog tias koj tab tom ua a UV - vis sim ntsuas qhov concentration ntawm GreenFluorescent Protein, cov protein yuav tsum tau yaj hauv asolvent.
Tus qauv dawb yog dab tsi?
A reagent dawb hais txog qhov zoo me me errorin kuaj tau los ntawm cov reagents lawv tus kheej. A qauv dawb hais txog kev siv cov qauv rau zeroingan ntsuas thaum lub sij hawm xeem txheej txheem. A qauv dawb cancorrect rau tej zaum yuam kev los ntawm cov uas twb muaj lawm xim los yog turbidity nyob rau hauv lub qauv ua ntej reagents ntxiv.
Pom zoo:
Vim li cas koj thiaj xav tau qhov khoob hauv spectrophotometer?
Ib tug dawb paug cuvette yog siv los calibrate lub spectrophotometer nyeem: lawv sau cov ntsiab lus teb ntawm ib puag ncig-strument-sample system. Nws yog ib qho piv txwv rau "zeroing" ib teev ua ntej hnyav. Kev khiav ib qho dawb paug tso cai rau koj sau cov kev cuam tshuam ntawm cov cuab yeej tshwj xeeb ntawm koj cov ntawv nyeem
Vim li cas peb ntsuas qee qhov kev ncua deb hauv astronomy hauv lub teeb xyoo thiab qee qhov hauv astronomical units?
Feem ntau cov khoom nyob rau hauv qhov chaw nyob deb li deb, hais tias siv ib tug kuj me me chav nyob deb, xws li ib tug astronomical unit, yog tsis siv. Hloov chaw, astronomers ntsuas qhov deb ntawm cov khoom uas nyob sab nraum peb lub hnub ci hauv lub teeb xyoo. Qhov ceev ntawm lub teeb yog kwv yees li 186,000 mais lossis 300,000 kilometers ib ob
Vim li cas peb thiaj siv cov lej tseem ceeb hauv chemistry?
Cov lej tseem ceeb (tseem hu ua tus lej tseem ceeb) yog ib feem tseem ceeb ntawm kev suav lej tshawb fawb thiab lej, thiab cuam tshuam nrog qhov raug thiab raug ntawm cov lej. Nws yog ib qho tseem ceeb rau kev kwv yees qhov tsis paub tseeb ntawm qhov kawg tshwm sim, thiab qhov no yog qhov tseem ceeb ntawm cov duab los ua qhov tseem ceeb heev
Vim li cas Mendeleev tshuav qhov khoob hauv lub rooj zaum?
Mendeleev tshuav qhov khoob hauv nws lub rooj zaum vim tias cov khoom ntawm cov khoom paub tau kwv yees lwm yam, tseem tsis tau tshawb pom, cov ntsiab lus hauv cov chaw no. Nws kwv yees tias cov ntsiab lus tshiab yuav raug tshawb pom tom qab thiab lawv yuav nyob hauv qhov khoob
Vim li cas peb thiaj siv lub tshuab ntsuas qhov sib txawv ntawm theem?
Phase contrast yog nyob deb ntawm txoj kev siv ntau tshaj plaws hauv kev siv lub teeb pom kev zoo. Nws yog cov txheej txheem tsim microscopy hauv kab lis kev cai ntawm tes thiab nyob hauv cell imaging. Thaum siv cov txheej txheem pheej yig no, cov hlwb muaj sia tuaj yeem pom hauv lawv lub xeev ntuj yam tsis muaj kev txhim kho yav dhau los lossis cov ntawv sau