Difference between Rate Theory and Plate Theory

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Difference between Rate Theory and Plate Theory
Difference between Rate Theory and Plate Theory

Video: Difference between Rate Theory and Plate Theory

Video: Difference between Rate Theory and Plate Theory
Video: Plate theory, Rate theory, van Deemter equation, HETP, Theories of Chromatography. 2024, Lub rau hli ntuj
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Qhov sib txawv tseem ceeb ntawm tus nqi txoj kev xav thiab phaj txoj kev xav yog qhov kev xav ntawm tus nqi piav qhia cov khoom ntawm kev sib cais chromatographic los ntawm kev sib piv tus nqi ntawm cov tshuaj ntsuam xyuas eluted los ntawm kab, whereas phaj txoj kev xav piav qhia cov khoom ntawm chromatographic sib cais los ntawm kev txiav txim siab tus naj npawb ntawm daim phiaj nyob rau hauv kab.

Ob qhov kev xav ntawm tus nqi thiab phaj txoj kev xav yog qhov tseem ceeb hauv kev tsom xam chromatographic. Ob txoj kev xav no piav qhia txog cov khoom ntawm kev txav analytes nyob rau theem nyob ruaj khov ntawm chromatographic nruab nrab lossis theem mobile.

Tus nqi Theory yog dab tsi?

Rate theory yog ib lub tswv yim hauv chemistry uas piav qhia txog cov txheej txheem ntawm qhov siab tshaj plaws dispersion, thiab nws muab ib qho kev sib npaug los xam qhov sib txawv ntawm ib chav tsev ntev ntawm kab. Qhov kev xav no tseem ceeb heev hauv kab chromatography. Muab hauv qab no yog qee yam tseem ceeb ntawm txoj kev xav no:

  • Rate theory muab cov lus piav qhia tseeb dua ntawm cov txheej txheem uas ua haujlwm hauv kab
  • Nws txiav txim siab lub sijhawm siv rau kev tsim qhov sib npaug ntawm theem nyob ruaj khov thiab theem txawb
  • Nws txiav txim siab qhov cuam tshuam ntawm tus nqi ntawm elution ntawm qhov tshwm sim los txiav npluav los yog chromatographic ncov
  • Kev qhia lej cuam tshuam los ntawm txoj kev sib txawv uas muaj rau cov kws tshuaj ntsuam mus ncig
Qhov txawv ntawm Rate Theory thiab Phaj
Qhov txawv ntawm Rate Theory thiab Phaj

Daim duab 01: Kem Chromatography Technique

Tus nqi txoj kev xav muab qhov sib npaug los txiav txim siab qhov sib txawv ntawm qhov sib txawv ntawm ib chav tsev ntev ntawm ib kab, hais txog qhov nrawm ntawm lub sijhawm txawb thiab cov khoom ntawm cov tshuaj ntsuam xyuas. Qhov sib npaug yog raws li nram no:

H=σ2/L

Qhov H yog lub phaj qhov siab, σ yog tus qauv sib txawv ntawm cov qhab thiab L yog kab ntev.

Plate Theory yog dab tsi?

Plate theory yog ib lub tswv yim hauv chemistry uas piav txog kev sib cais hauv cov txheej txheem chromatographic nyob rau hauv daim ntawv hypothetical daim hlau. Qhov no yog ib txoj kev xav uas laus dua piv rau tus nqi theory ntawm chromatography.

Raws li txoj kev xav phaj, kab chromatographic tau muab faib ua ntau daim phiaj. Tus naj npawb ntawm cov kev xav no yog muab raws li "N". Ntawm no, peb tuaj yeem xav tias muaj qhov sib npaug ntawm qhov chaw nyob ruaj khov thiab theem mobile. Los ntawm txoj kev xav no, peb tuaj yeem pom tau tias txiav txim siab tias kab chromatographic kab nrog ntau dua ntawm cov phiaj xwm qhia tau tias muaj kev sib cais ntau dua thiab qhov sib cais ntau dua tshwm sim thaum phaj siab me dua.

Qhov Tseem Ceeb Qhov txawv - Rate Theory vs Phaj
Qhov Tseem Ceeb Qhov txawv - Rate Theory vs Phaj

Daim duab 02: Nyias Txheej Chromatography

Peb tuaj yeem txiav txim siab tus lej ntawm cov phiaj xwm theoretical hauv kem ntawm cov kev sim xws li kev kuaj xyuas chromatographic ncov tom qab elution los ntawm ntau txoj hauv kev; e.g. ib nrab-qhov siab txoj kev, USP method.

Dab tsi yog qhov txawv ntawm Rate Theory thiab Phaj Theory?

Rate theory and plate theory yog ib qho tseem ceeb hauv cov txheej txheem chromatographic sib cais. Qhov sib txawv tseem ceeb ntawm tus nqi txoj kev xav thiab phaj txoj kev xav yog qhov kev xav ntawm tus nqi piav qhia txog cov khoom ntawm chromatographic sib cais los ntawm kev sib piv tus nqi ntawm cov tshuaj ntsuam xyuas uas elutes los ntawm kab, whereas phaj txoj kev xav piav qhia txog cov khoom ntawm chromatographic sib cais los ntawm kev txiav txim siab tus naj npawb ntawm cov phaj hypothetical hauv lub column.

Ntxiv mus, qhov kev xav ntawm tus nqi muab cov lus piav qhia tseeb dua ntawm cov txheej txheem uas ua haujlwm hauv ib kem, thaum phaj txoj kev xav muab cov lus piav qhia ntau dua ntawm qhov qub.

Hauv qab infographic qhia txog qhov sib txawv ntawm qhov kev xav thiab phaj txoj kev xav.

Qhov txawv ntawm Rate Theory thiab Phaj Theory hauv Tabular Form
Qhov txawv ntawm Rate Theory thiab Phaj Theory hauv Tabular Form

Summary – Rate Theory vs Phaj Theory

Rate theory and plate theory yog ib qho tseem ceeb hauv cov txheej txheem chromatographic sib cais. Qhov sib txawv tseem ceeb ntawm tus nqi txoj kev xav thiab phaj txoj kev xav yog qhov kev xav ntawm tus nqi piav qhia cov khoom ntawm kev sib cais ntawm chromatographic los ntawm kev sib piv tus nqi ntawm cov tshuaj ntsuam xyuas uas elutes los ntawm kem whereas phaj txoj kev xav piav qhia txog cov khoom ntawm chromatographic sib cais los ntawm kev txiav txim siab tus naj npawb ntawm cov phaj hypothetical hauv kab..

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