Nyob rau hauv lub ntiaj teb no ntawm analytical chemistry thiab laboratory xeem, precision yog tseem ceeb heev. Txawm hais tias koj tab tom ua chromatography lossis lwm yam kev tshuaj ntsuam, qhov zoo ntawm koj cov cuab yeej cuam tshuam ncaj qha rau kev ntseeg siab ntawm koj cov txiaj ntsig. Ib qho tseem ceeb tivthaiv uas feem ntau mus overlooked yog cov qauv voj nyob rau hauvAgilent autosampler injectors. Qhov no me me tab sis tseem ceeb ua kom ntseeg tau tias cov qauv raug txhaj rau hauv qhov system, cuam tshuam rau tag nrho cov kev ua tau zoo thiab kev ua tau zoo ntawm kev tshuaj xyuas.
Tab sis dab tsi tiag tiag ua rau lub voj voog qauv zoo, thiab vim li cas nws cov khoom tseem ceeb heev? Hauv tsab xov xwm no, peb yuav piav qhia txog lub luag haujlwm ntawm cov qauv voj voog, cov ntaub ntawv siv, thiab yuav ua li cas xaiv cov kev xaiv zoo tshaj plaws rau koj qhov chaw kuaj.
Dab tsi yog Sample Loop thiab Vim Li Cas Nws Tseem Ceeb?
Cov qauv voj voog yog ib qho me me, tubular tivthaiv nyob rau hauv ib qho autosampler injector system uas tuav lub ntim ntawm cov qauv ua ntej nws txhaj rau hauv chromatograph lossis lwm yam khoom siv tshuaj ntsuam xyuas. Nws lub hom phiaj yog los xyuas kom meej tias cov qauv txhaj tshuaj yog qhov zoo ntim, uas cuam tshuam ncaj qha rau qhov raug thiab rov tsim dua ntawm cov txiaj ntsig kev xeem.
Cov qauv ntim tsis raug tuaj yeem ua rau cov ntaub ntawv tsis zoo, ua rau muaj qhov yuam kev hauv kev tshuaj ntsuam thiab thaum kawg cuam tshuam rau kev tshawb fawb lossis kev tsim khoom. Yog li ntawd, kom ntseeg tau qhov zoo thiab qhov tseeb ntawm cov qauv voj voog yog qhov tseem ceeb kom tau txais txiaj ntsig zoo hauv cov txheej txheem tshuaj ntsuam.
Khoom siv: Stainless hlau vs. PEEK
Cov khoom siv los tsim cov qauv voj voog tuaj yeem cuam tshuam nws qhov kev ua tau zoo thiab kev ua haujlwm ntev. Ob ntawm cov khoom siv feem ntau siv los ua cov qauv voj voog yogstainless hlauthiabPEEK (Polyetheretherketone). Cia peb tshawb xyuas seb cov ntaub ntawv no txawv li cas thiab vim li cas txhua tus yuav haum rau cov kev xav tau ntawm chav kuaj sib txawv.
Stainless hlau Sample Loops
Stainless hlau yog ib qho khoom siv rau cov qauv voj voog rau ntau xyoo. Paub txog nws cov kav ntev, tsis kam tiv thaiv corrosion, thiab muaj peev xwm tiv taus siab, stainless hlau muaj kev ua tau zoo hauv ntau qhov chaw kuaj. Nws cov qauv nruj kom ntseeg tau tias cov qauv voj voog tswj nws cov duab thiab kev ncaj ncees, txo qhov kev pheej hmoo ntawm kev xau thiab cov qauv poob thaum txhaj tshuaj.
Tsis tas li ntawd, stainless hlau yog resistant rau ntau yam tshuaj, ua rau nws zoo tagnrho rau siv nyob rau hauv ntau yam kev siv uas tshuaj stability yog tseem ceeb heev. Txawm li cas los xij, stainless hlau loops yuav tsis haum rau cov qauv rhiab heev los yog ib puag ncig uas yuav tsum tau muaj cov kab mob tsawg tsawg, vim tias cov khoom siv qee zaum tuaj yeem faib cov kab hlau rau hauv cov qauv.
PEEK Sample Loops
PEEK yog ib qho kev ua tau zoo polymer paub txog nws cov tshuaj inertness, mechanical zog, thiab tsis kam mus rau kub kub. Cov qauv voj voog ua los ntawm PEEK tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv cov ntawv thov rhiab uas muaj kev sib kis los ntawm cov hlau lossis lwm yam khoom muaj kev txhawj xeeb. PEEK cov khoom tsis muaj zog ua kom ntseeg tau tias nws tsis cuam tshuam nrog cov qauv, ua rau nws zoo tagnrho rau kev tuav cov tshuaj tsis haum lossis cov tshuaj tiv thaiv.
Lwm qhov zoo dua ntawm PEEK yog nws qhov yooj yim thiab lub teeb yuag piv rau cov hlau tsis muaj steel, uas tuaj yeem ua rau nws yooj yim dua rau kev teeb tsa lossis hloov. Txawm li cas los xij, PEEK yuav tsis tuaj yeem tiv taus siab zoo li cov hlau tsis muaj steel, yog li nws siv feem ntau pom zoo rau cov tshuab qis dua.
Yuav Ua Li Cas Xaiv Txoj Cai Loop rau Koj Daim Ntawv Thov
Kev xaiv lub voj voog zoo nyob ntawm ntau yam, suav nrog qhov xwm txheej ntawm tus qauv, hom kev tshuaj xyuas, thiab qhov chaw ua haujlwm. Nov yog qee yam uas yuav tsum xav txog thaum xaiv cov khoom siv rau koj cov qauv voj voog:
1. Hom qauv: Yog tias koj tab tom ua hauj lwm nrog cov qauv rhiab heev los yog volatile, PEEK qauv voj yog qhov kev xaiv zoo dua vim nws qhov tsis zoo. Txawm li cas los xij, rau kev siv ntau dua los yog kev lag luam, stainless hlau yuav yog qhov kev xaiv ruaj khov dua.
2. Tshuaj Compatibility: Ob qho khoom siv muaj kev tiv thaiv zoo rau cov tshuaj, tab sis rau cov tshuaj lom neeg hnyav, cov hlau tsis muaj steel yuav ua tau zoo tshaj PEEK. Nco ntsoov xyuas kom meej tias cov khoom koj xaiv tau sib xws nrog cov kuab tshuaj thiab cov tshuaj reagents siv hauv koj qhov kev tshuaj xyuas.
3. Cov xwm txheej siab: Yog tias koj lub cev ua haujlwm ntawm kev kub ntxhov, stainless hlau yog qhov kev xaiv zoo dua vim tias nws tuaj yeem tiv taus cov xwm txheej no yam tsis muaj kev cuam tshuam nws txoj kev ncaj ncees.
4. Durability: Stainless hlau yog cov khoom siv ruaj khov, tshwj xeeb tshaj yog rau cov tshuab uas yuav tsum tau siv ntau zaus. PEEK, thaum siv tau ntev, yuav tsis kav ntev npaum li kev siv hnyav lossis hnyav heev.
5. Loj thiab Flexibility: Yog tias qhov yooj yim thiab yooj yim ntawm kev teeb tsa tseem ceeb, PEEK cov qauv voj voog muab kev xaiv sib dua thiab hloov tau yooj yim dua. Stainless hlau, ntawm qhov tod tes, muaj rigidity, uas tej zaum yuav txhim khu kev qha nyob rau hauv tej yam systems.
Xaus
Cov qauv voj voog yog ib qho me me tab sis tseem ceeb hauv Agilent autosampler injectors, thiab xaiv cov khoom tsim nyog rau koj lub voj yog qhov tseem ceeb rau kev ua kom raug, kev ua tau zoo, thiab kev ua haujlwm ntev hauv koj cov txheej txheem analytical. Txawm hais tias koj xaiv cov hlau tsis muaj steel lossis PEEK, kev nkag siab txog cov txiaj ntsig ntawm txhua yam khoom yuav pab koj txiav txim siab rau koj qhov kev xav tau hauv chav kuaj.
Los ntawm kev nqis peev hauv cov qauv zoo tshaj plaws thiab kev tswj hwm koj cov cuab yeej tsis tu ncua, koj tuaj yeem txhim kho qhov tseeb ntawm koj qhov kev txheeb xyuas thiab ua tiav cov txiaj ntsig zoo txhua lub sijhawm. Yog tias koj npaj txhij los tshawb nrhiav cov qauv saum toj kawg nkaus rau koj lub chaw kuaj mob,Chromasirmuaj ntau yam kev ua haujlwm siab kom tau raws li koj xav tau.
Post lub sij hawm: Feb-20-2025