Qhov txawv ntawm EDTA thiab Sodium Citrate yog dab tsi

2024 Tus sau: Alex Aldridge | [email protected]. Kawg hloov kho: 2023-12-17 13:40

Qhov sib txawv tseem ceeb ntawm EDTA thiab sodium citrate yog tias EDTA muaj txiaj ntsig zoo rau kev kuaj ntshav vim tias nws khaws cov qe ntshav zoo dua li lwm cov tshuaj zoo sib xws, thaum sodium citrate muaj txiaj ntsig zoo li tus neeg saib xyuas coagulation vim qhov V thiab VIII ruaj khov dua. nyob rau hauv cov khoom no.

Thaum nws los txog rau kev tiv thaiv coagulation, ob qho tib si sodium citrate thiab EDTA yog cov neeg sawv cev tseem ceeb. Tab sis lawv feem ntau coj zoo sib xws. Cov tshuaj no tuaj yeem khi dawb plasma calcium, tiv thaiv cov ntshav txhaws. Yog li, raws li qee qhov kev tshawb fawb, peb tuaj yeem siv EDTA los hloov sodium citrate. Hauv qhov sib txawv tseem ceeb uas tau teev tseg saum toj no, cov yam ntxwv V thiab VIII yog kev hloov pauv ntawm cov ntshav txhaws hauv cov ntshav. Cov kev hloov pauv no tuaj yeem ua rau cov ntshav txhaws txawv txav. Yog li ntawd, kev tshawb fawb suav nrog cov xwm txheej no tseem ceeb heev.

EDTA (Ethylenediaminetetraacetic Acid) yog dab tsi?

EDTA lossis ethylenediaminetetraacetic acid yog aminopolycarboxylic acid uas muaj cov tshuaj formula [CH₂N(CH_2CO 2_H)22 _{Nws tshwm li cov khoom dawb, dej-soluble uas tau siv dav hauv kev khi rau hlau thiab calcium ions. Cov tshuaj no tuaj yeem khi nrog cov ions ntawm rau lub ntsiab lus, uas ua rau nws paub tias yog tus hniav loj (hexadentate) chelating tus neeg sawv cev. Yuav muaj ntau hom EDTA, feem ntau disodium EDTA.}

Daim duab 01: Cov Qauv Tshuaj ntawm EDTA

Industrially, EDTA yog qhov tseem ceeb ua tus neeg sawv cev sequester rau sequester hlau ions hauv cov tshuaj aqueous. Ntxiv mus, nws tuaj yeem tiv thaiv cov hlau ion impurities los ntawm kev hloov kho cov xim ntawm dyes hauv kev lag luam textile. Tsis tas li ntawd, nws muaj txiaj ntsig zoo hauv kev sib cais ntawm lanthanide hlau los ntawm ion-pauv chromatography. Hauv kev lag luam tshuaj, EDTA tuaj yeem siv los kho cov tshuaj mercury thiab txhuas lom vim nws muaj peev xwm khi hlau ions thiab pab cais lawv. Ib yam li ntawd, nws tseem ceeb heev hauv kev txheeb xyuas ntshav. EDTA tseem tuaj yeem siv los ua cov khoom siv hauv kev tu tus kheej xws li tshuaj zawv plaub hau, tshuaj ntxuav tes, thiab lwm yam, ua tus neeg sawv cev sequestering.

Sodium Citrate yog dab tsi?

Sodium citrate yog ib qho inorganic compound uas muaj sodium cations thiab citrate anions nyob rau hauv sib txawv piv. Muaj peb yam loj ntawm sodium citrate molecules: monosodium citrate, disodium citrate, thiab trisodium citrate molecule. Sib sau ua ke, peb cov ntsev no paub los ntawm tus lej E 331. Txawm li cas los xij, feem ntau daim ntawv yog trisodium citrate ntsev.

Daim duab 02: Trisodium Citrate hauv ib lub raj mis

Trisodium citrate muaj cov tshuaj formula Na₃C₆H₅O 7 _{Feem ntau, cov tshuaj no feem ntau hu ua sodium citrate vim tias nws yog ntau hom sodium citrate ntsev. Cov tshuaj no muaj ib tug zoo li saline, me ntsis tart tsw. Tsis tas li ntawd, qhov sib xyaw no yog qhov yooj yim me ntsis, thiab peb tuaj yeem siv nws los ua cov kev daws teeb meem nrog rau citric acid. Cov tshuaj no zoo li cov hmoov dawb crystalline hmoov. Qhov tseem ceeb, sodium citrate yog siv nyob rau hauv kev lag luam khoom noj khoom haus raws li cov khoom noj additive, raws li ib tug flavoring los yog raws li ib tug preservative.}

Qhov txawv ntawm EDTA thiab Sodium Citrate yog dab tsi?

EDTA lossis ethylenediaminetetraacetic acid yog aminopolycarboxylic acid uas muaj cov tshuaj formula [CH₂N(CH_2CO 2_H)22_{Sodium citrate yog ib qho inorganic compound uas muaj sodium cations thiab citrate anions hauv qhov sib txawv. Qhov sib txawv tseem ceeb ntawm EDTA thiab sodium citrate yog tias EDTA muaj txiaj ntsig zoo rau kev kuaj ntshav vim tias nws khaws cov qe ntshav zoo dua li lwm cov tshuaj zoo sib xws, thaum sodium citrate muaj txiaj ntsig zoo li tus neeg saib xyuas coagulation vim tias yam V thiab VIII ruaj khov hauv cov khoom no.}

Cov ntawv qhia hauv qab no nthuav tawm qhov sib txawv ntawm EDTA thiab sodium citrate hauv daim ntawv teev npe rau ib sab ntawm kev sib piv.

Summary – EDTA vs Sodium Citrate

EDTA thiab sodium citrate yog cov neeg ua haujlwm tseem ceeb hauv kev tiv thaiv cov ntshav. Qhov sib txawv tseem ceeb ntawm EDTA thiab sodium citrate yog tias EDTA muaj txiaj ntsig zoo rau kev kuaj ntshav vim tias nws khaws cov qe ntshav zoo dua li lwm cov tshuaj zoo sib xws, thaum sodium citrate muaj txiaj ntsig zoo li tus neeg saib xyuas coagulation vim tias yam V thiab VIII ruaj khov hauv cov khoom no.