Qhov sib txawv ntawm qhov qhib tubular thiab packed kab yog qhov qhib tubular kab yuav tsum tau ib tug me me ntawm cov qauv rau cov txheej txheem chromatographic piv rau cov qauv loj uas yuav tsum tau rau cov packed kem chromatographic txheej txheem.
Gas chromatography capillary kem yog ib hom ntawm cov txheej txheem chromatographic uas tuaj nrog lub sijhawm nyob ruaj khov uas yog coated rau sab hauv ntawm kab. Lwm hom roj chromatographic txheej txheem yog cov txheej txheem kem ntim. Nws yog qhov sib piv tsawg dua vim nws xav tau cov qauv loj.
Qhib Tubular Kab yog dab tsi?
Qhib tubular kab yog ib hom roj chromatographic kab uas tseem hu ua kab capillary. Feem ntau, hom kab no muaj ib txoj kab uas hla ntawm ob peb feem kaum ntawm ib millimeter. Muaj ob hom loj qhib tubular kab: phab ntsa-coated qhib tubular kab thiab txhawb-coated qhib tubular kab. Tus qub yog luv li WCOT, thiab tom kawg yog luv li SCOT.
Cov kab uas muaj phab ntsa muaj cov raj capillary uas muaj cov phab ntsa coated nrog cov kua dej nyob ruaj khov ntawm cov txheej txheem chromatographic. Ntawm qhov tod tes, cov kab ntawv txhawb nqa-coated muaj cov phab ntsa sab hauv ntawm lub capillary lined nrog nyias txheej ntawm cov khoom txhawb nqa. Cov khoom txhawb nqa no yog lined mus rau qhov chaw nyob ruaj khov tau adsorbed. Tsis tas li ntawd, kev txhawb nqa-coated kab feem ntau tsis tshua muaj txiaj ntsig dua li cov kab uas muaj phab ntsa. Txawm li cas los xij, ob qho tib si ntawm cov kab qhib tubular no muaj txiaj ntsig zoo hauv cov roj chromatography piv rau cov kab ntim khoom.
Cov kab ntim dab tsi yog dab tsi?
Ib kem ntim rau hauv cov roj chromatography yog hom roj chromatographic txheej txheem uas peb siv cov khoom sib cais, inert, khoom txhawb nqa. Feem ntau, nws yog cov khoom siv hauv ntiaj teb diatomaceous. Cov khoom no yog coated nrog cov kua nyob ruaj khov theem. Feem ntau cov kab ntim khoom feem ntau muaj qhov ntev uas txawv ntawm 1.5 txog 10m ntev. Tsis tas li ntawd, lawv muaj txoj kab uas hla uas tuaj yeem muaj li ntawm 2 txog 4 m sab hauv.
Cov kab ntim ntim tsis tshua muaj ntau dua li cov kab qhib tubular vim tias cov kab ntim ntim feem ntau xav tau ntau qhov qauv piv rau cov txheej txheem qhib tubular. Tsis tas li ntawd, cov kab ntim khoom muab qhov kev sib piv qis dua li cov kab qhib tubular vim tias cov kab no muaj ntau txoj hauv kev rau cov qauv kom dhau mus.
Dab tsi yog qhov txawv ntawm Qhib Tubular thiab Ntim Kab?
Ob hom kev loj ntawm cov txheej txheem chromatographic yog qhib tubular kem thiab cov kab ntim khoom. Qhov sib txawv tseem ceeb ntawm qhib tubular thiab ntim kab yog tias qhib tubular kab yuav tsum tau me me ntawm cov qauv rau cov txheej txheem chromatographic piv rau cov qauv loj xav tau rau cov txheej txheem chromatographic packed. Ntxiv mus, cov kab qhib tubular muaj qhov kev daws teeb meem siab thaum cov kab ntim khoom muaj qhov kev daws teeb meem tsawg. Tsis tas li ntawd, cov kab qhib tubular tsis muaj ntau txoj hauv kev, hos cov kab ntim khoom muaj ntau txoj hauv kev. Ntxiv rau cov no, cov kab qhib tubular muaj cov qauv qis qis thaum cov kab ntim khoom muaj cov qauv loj loj.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm qhov qhib tubular thiab cov kab ntim ntim hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Qhib Tubular vs Ntim Kab
Qhib tubular kem thiab cov kab ntim khoom yog cov txheej txheem tseem ceeb hauv cov roj chromatography. Nyob rau hauv luv luv, qhov sib txawv tseem ceeb ntawm qhib tubular thiab packed kab yog hais tias qhib tubular kab yuav tsum tau ib tug me me npaum li cas ntawm cov qauv rau cov txheej txheem chromatographic piv rau cov qauv loj yuav tsum tau rau cov packed kem chromatographic txheej txheem.
