Nyob rau hauv teb ntawm lub tuam tsev ntawm kev sau cia, qhov tseeb thiab kev ntseeg tau yog qhov tseem ceeb. Cov kws tshawb nrhiav thiab cov kws tshawb fawb siv cov tshuab tsis txaus ntseeg kom tshem tawm impurities, thiab cov kab mob me me los xyuas kom meej thiab zoo ib yam li cov kev sim. Ib qho tseem ceeb ntawm ib qho tseem ceeb ntawm txoj haujlwm tseem ceeb hauv cov txheej txheem no yog PTFE (polytetrafluoroethylene) koob txhaj tshuaj.

PTFE cov kua limtau dhau los ua cov cuab yeej tsis tseem ceeb hauv cov kev ntsuas niaj hnub vim lawv lub peev xwm ua tau zoo thiab ua tau zoo. PTFE yog cov fluoropolicmer paub meej txog nws cov khoom zoo. Nws cov qauv tshwj xeeb muaj cov roj ntsha atoms ua rau cov tshuaj fluorine atoms, tsim cov khoom ruaj khov thiab inert siab. Cov khoom siv no ua rau PTFE lim zoo tshaj plaws rau ntau cov ntawv thov, suav nrog kev tsom xam, thiab kev lag luam ib puag ncig, thiab kev lag luam ib puag ncig, thiab kev lag luam ib puag ncig, thiab khoom noj khoom haus.

Delve rau hauv lub realm ntawm 0.45 micron lim los ntawm kev nyeem peb cov lus tshaj tawm. Uncover lawv qhov tseem ceeb hauv kev kuaj kom pom cov tshuab thiab lawv txoj kev koom tes rau cov txiaj ntsig thiab txhim khu kev qha:Cov lus qhia tiav rau 0.45 micron lim dej: txhua yam koj xav paub

Tshuaj Kuj

PTFE cov koob tso dej lim tau hais txog lawv cov tshuaj zoo heev. Cov tshuaj fluorine thiab cov pob zeb hauv PTFE tsim cov khoom ruaj khov, cov khoom siv inert uas tuaj yeem tiv thaiv tau rau ntau yam tshuaj kuab muaj zog, acids, thiab cov hauv paus. Cov cuab yeej no yog pab tshwj xeeb tshaj yog thaum lim cov qauv muaj cov kuab tshuaj organic, cov kua qaub muaj zog, lossis cov kev daws teeb meem. Cov kws tshawb nrhiav tuaj yeem tso siab sivPTFE cov kua limHauv cov ntawv thov uas muaj lwm cov ntaub ntawv lim muaj kev cuam tshuam rau kev cuam tshuam lossis kev ua haujlwm, ua kom pom kev ncaj ncees.

Hydrophobic

Lub pob zeb hydrophobic ntawm PTFE yog lwm qhov loj dua ntawm cov koob txhaj tshuaj ua los ntawm cov khoom no. PTFE yog inherently dej tshuaj, rov xaiv dej thiab tso cai tsuas yog cov kev daws teeb meem tsis muaj aqueous dhau los. Cov cuab yeej no yog qhov tshwj xeeb tshaj yog thaum lim cov kev daws teeb meem muaj cov kuab tshuaj organic lossis roj. Lub zog hydrophobic ntawm PTFE tiv thaiv cov lim los tiv thaiv nrog dej ua kom muaj zog los ua kom muaj zog thiab txhim kho lub zuag qhia tag nrho.

Particle tuav tseg

PTFE cov hmoov av lim muaj nyob rau ntau qhov ntau thiab tsawg, feem ntau los ntawm 0.1 txog 10 microns. Thaum lim cov qauv kuaj kom tshem tawm cov khoom tshwj xeeb lossis cov kab mob me, nws yog qhov tseem ceeb kom muaj peev xwm xaiv qhov tsim nyog pore loj. PTFE lim ceev kom pom tseeb thiab tshem tawm cov hom phiaj tsis zoo xws li cov kab mob, qee qhov teeb meem, thiab submicron hais. Qhov tshwj xeeb no txo qhov kev pheej hmoo ntawm cov qauv tsis huv thiab ua kom pom tseeb cov txiaj ntsig tshawb xyuas.

Tsawg cov qib extraction

Thaum lub sij hawm cov txheej txheem pom, qee leejLim Cov Ntaub NtawvTso tawm cov extractables uas tuaj yeem cuam tshuam nrog tus qauv thiab hloov cov tshuaj ntsuam ntawm kev txaus siab. Txawm li cas los xij, qhov kev lim dej ntau ntau ntawm PTFE lim ua rau lawv tsim nyog rau cov qauv ntsuas kev nkag siab zoo qhov twg ntawm qhov tseem ceeb yog qhov tseem ceeb tshaj plaws. Qhov tsawg kawg nkaus hauv PTFE cov ntxaij lim dej pab tswj kev ncaj ncees thiab kev ntseeg tau ntawm kev soj ntsuam cov txiaj ntsig.

Xauv lub secrets ntawm xaiv lub zoo meej koob hmoov hauv peb cov ncauj lus kom ntxaws. Tshawb nrhiav yam tseem ceeb los txiav txim siab thiab ua kom cov kev txiav txim siab rau koj cov kev xav tau kev xav tau:Yuav ua li cas xaiv cov koob txhaj tshuaj lim rau koj cov qauv npaj?

Qhov ntau thiab tsawg thiab kev teeb tsa

PTFE cov hmoov lim dej muaj ntau qhov ntau thiab tsawg thiab kev teeb tsa kom haum cov koob txhaj rau lwm qhov ntau thiab tsawg dua. Qhov kev hloov kho no tso cai rau cov kws tshawb fawb los xaiv lub lim zoo tshaj plaws rau lawv cov kev xav tau tshwj xeeb. Ib qho ntxiv, qee PTFE cov ntaub lim dej tuaj nrog cov iav lim ua ntej los yog polypropylene, uas txhim kho cov kev lim dej loj dua thiab kev ncua lub zog lim. Cov kev xaiv no muab cov kws tshawb fawb txog cov ntsiab lus kom ua raws li cov txheej txheem kev pom zoo.

Los ntawm kev xav thiab siv cov yam ntxwv tseem ceeb ntawmPTFE cov kua lim, Cov kws tshawb nrhiav thiab cov kws tshawb fawb tuaj yeem ntseeg siab sib xyaw ua ke rau lawv mus rau hauv lawv lub chaw kuaj sim. Cov tshuaj tsis kam, hydrophobicity, muaj tseeb ptfe cov txiaj ntsig, thiab txhim khu kev qha tsawg cov txiaj ntsig, thiab kev nce qib hauv kev ua haujlwm.

Tshawb nrhiav lub ntiaj teb ntawm 0.22 Micron cov ntxaij lim dej hauv peb tsab xov xwm. Tshawb nrhiav lawv qhov tseem ceeb lub luag haujlwm hauv kev kuaj cov tshuab thiab lawv qhov kev cuam tshuam rau cov txiaj ntsig raug:Cov lus qhia tiav rau 0.22 micron micron: txhua yam koj xav paub

Yav dhau los:

Vim li cas thiaj zoo gl45 lub raj mis tuav tiv thaiv tawg

Tom ntej:

Chromatography vials: Qhov tshwm sim ntawm kev siv sijhawm ntev