Koj puas tuaj yeem ntseeg tias cov raj xa dej tau hloov pauv lub ntiaj teb kev tshawb fawb thiab tiv thaiv ntau lab tus kws tshawb fawb?Qhov no yog ib qho exaggeration me ntsis, tab sis yog tias koj saib hauv chav kuaj ua ntej kev tsim cov pipette thiab saib seb cov kws tshawb fawb ua haujlwm li cas, koj yuav pom zoo. .
Feem ntau ntawm koj uas tau kawm cov chav kawm ua cov tub ntxhais kawm tau siv cov roj hmab cap droppers.Ib qho yooj yim pinch rau saum lub hau yuav nqus cov kua los ntawm lub thawv hauv qab rau hauv lub dropper, loosen nws thiab cia nws ntws rov qab.Qhov no kuj hu ua pipetting, tab sis nws yog crude heev los tswj tus nqi ntawm cov kua absorbed, uas tsis tau raws li qhov yuav tsum tau ntawm kev tshawb fawb kev tshawb fawb kom raug.Vim li ntawd, ib tug neeg tau txais kev tshoov siab los ntawm ib tug straw thiab xav txog kev siv ib tug straw los haus dej haus. Cov neeg tshawb fawb pib. siv cov tub ntxhais kawm tiav iav nrog ib kawg ntawm lub qhov ncauj thiab lwm qhov kawg tso ncaj qha rau hauv cov kua.Txawm li cas los xij koj saib cov nplai, koj tuaj yeem nqus tau ntau npaum li koj xav tau, uas yog qhov tseeb ntau dua.Tab sis dab tsi txog cov kua siv hauv chav kuaj?Yog tias koj muaj hmoo, koj yuav nqus tau ib yam dab tsi tsis zoo thiab ua ob peb mus rau chav dej xwb.Yog tias koj tsis muaj hmoo, koj nqus cov khoom lom, thiab koj phem. Tseeb, nws tau pom. tias txij li xyoo 1915, kwv yees li 40 feem pua ntawm kev kuaj mob tau tshwm sim los ntawm pi pettes.Ntau npaum li ntawd los txog niaj hnub no, qee qhov kev kuaj xyuas kev nyab xeeb thiab kev sim tau rov txwv tsis pub siv lub qhov ncauj pipette.Tiam sis, qee tus neeg sim sim tseem nyiam kaw lawv lub qhov ncauj, xws li hauv cov teb chaws uas seev cev thaum lawv tsis pom zoo.
Lub sijhawm no, tus nyeem ntawv tuaj yeem nkag siab tias yog vim li cas qee tus neeg hais tias pipesters hloov lub ntiaj teb kev tshawb fawb thiab tiv thaiv cov kws tshawb fawb.Txawm li cas los xij, qhov kev tsim kho zoo tshaj plaws no tsis yog qhov qub. Nws nkag mus hauv chav kuaj tsuas yog tsib caug lossis rau caum xyoo dhau los.Cov khoom siv kav dej tau tshwm sim hauv xyoo 1956 thiab tau tsim los ntawm Heinrich Schnitger, tus kws kho mob ntawm German Institute of Physiological chemistry.Lub micropipette nws tau tsim muaj tag nrho cov yam ntxwv xav tau los ntawm niaj hnub micropipettes. Kev ua haujlwm tom qab, nws kuj tau tsim cov qauv chromatographic nrog qhov ntim tsawg dua 1 ml thiab luam tawm nws qhov kev tsim kho raws li patent.In 1958, nws tau koom tes nrog German tuam txhab Eppendorf, uas qhia txog lub laub khawm micropipette, ua thawj. tuam txhab nyob rau hauv lub ntiaj teb no los tsim micropipettes.Eppendorf tau ua tiav ntawm txoj kev mus rau kev lag luam pipette txoj kev loj hlob nrog kev loj hlob ntawm ib tug interchangeable pipette taub hau ua los ntawm polyethylene thiab polypropylene.Hnub no, lub tuam txhab Eppendorf tseem ua hauj lwm nyob rau hauv lub chaw soj nstuam ntsuas, nrog nws pipettes thiab automated pipettes. cov tshuab ua si lub luag haujlwm tseem ceeb hauv ntiaj teb thiab suav kev lag luam.Thaum lub tuam txhab Eppendorf txuas ntxiv mus kawm thiab txhim kho lub pipette, Labsystem tuam txhab ntawm Finland invented multi-channel tsau ntau pipette, uas zoo heev txhim kho cov efficiency ntawm pipette ua lag luam thiab yog li koom nrog kev sib ntaus sib tua ntawm pipette kev ua lag luam.Hnub no, Labsystem tau dhau los ua ib tug subsidiary ntawm "kev nrhiav tau dab" Seymour Fisher Kev tshawb fawb, thiab kev muag khoom ntim hauv kev lag luam ntau channel pipefitter tseem yog qhov no.1 tag nrho lub xyoo puag ncig.Nyob rau hauv Suav lag luam, qhov sib faib ntawm Finnish Leiber pipett kuj yog siab heev, uas yog heev ntau nyob rau hauv ntau yam kev kuaj.Ntxiv rau, Nyob rau tib lub sijhawm, nyob rau xyoo 1970, Fabkis Gilson kuj tau pib Pipetman, thawj ib leeg-channel adjustable range pipette, uas yeej lub koob npe nrov ntawm "lub ntiaj teb thawj phom". durability, Pipetman tau txais lub zog nyob rau hauv lub ntiaj teb no kev ua lag luam, thiab txawm ib zaug khov kho nyob rau hauv no.1 txoj hauj lwm.
Txoj kev loj hlob ntawm pipettes tau los ntawm leaps thiab ciam teb los ntawm lig 1960s, mus txog rau 1970s, thiab tam sim no mus rau automation.Ntxiv rau cov saum toj no cov hom, CAPP ntawm Denmark, RAININ ntawm lub tebchaws United States thiab lwm yam manufacturers kuj maj mam tsim lawv tus kheej. pipeting cov khoom coj ib feem nyob rau hauv kev ua lag luam.Lub teb chaws hom, ntawm qhov tod tes, tsuas yog luam tawm cov khoom lag luam. Txawm hais tias lawv yog cov pheej yig thiab zoo, lawv tsis muaj cai hais lus vim tsis muaj kev ywj pheej ntawm kev siv tshuab.Qee cov tuam txhab tsim khoom hauv tsev txawm tias nyob rau hauv lub npe ntawm cov khoom lag luam txawv teb chaws, nrog lub hauv paus chiv keeb ntawm cov khoom siv pipette posing as.Nyob rau hauv lub neej yav tom ntej, cov cuab yeej kuaj hauv tsev. kev lag luam yuav loj dua, thiab qhov kev thov rau pipettes yuav tsis tsawg.Industry insiders ntseeg hais tias cov neeg siv yuav inclined rau cov nqi qis dua, siab dua qhov tseeb, muaj zog ntau dua, ntau xim rau humanized pipeting khoom.Los ntawm cov qauv tsim, mus rau qhov kev lees paub ntawm tag nrho cov khoom zoo, kom nkag siab ntawm cov khoom lag luam cov ntsiab lus, cov tuam txhab lag luam yuav tsum tau nqis peev ntau zog los kawm.Cov tuam txhab lag luam hauv tsev yuav tsum tuav lub sijhawm, khov kho lawv cov txiaj ntsig ntawm kev ua haujlwm siab, mus rau high-end pipett. kev lag luam.