Burette yog ib lub tshuab kuaj mob uas nquag siv txhawm rau faib thiab ntsuas qhov sib txawv ntawm cov kua lossis qee zaum roj hauv cov tshuaj lom neeg thiab kev sim tshuaj tshwj xeeb rau cov txheej txheem titration hauv kev ntsuas ntsuas volumetric hauv xyoo 1828, Fab Kis kws tshuaj Joseph Louis Gay-Lussacthawj zaug siv titre ua ib qho lus qhia (titrer), lub ntsiab lus "kom txiav txim siab qhov concentration ntawm cov khoom hauv ib qho piv txwv". Volumetric tsom xam keeb kwm nyob rau hauv lig 18th-xyoo pua Fabkis. https://en.wikipedia.org › wiki › Titration
Titration - Wikipedia
. Burettes tuaj yeem teev tau raws li lawv qhov ntim, kev daws teeb meem, thiab qhov tseeb ntawm kev xa tawm.
Peb siv burette qhov twg?
A burette yog lub ntsuas ntim ntim iav uas yog siv hauv analytical chemistry rau qhov tseeb ntawm cov kua, tshwj xeeb tshaj yog ntawm ib qho ntawm cov reagents hauv titration. Lub raj burette nqa cov qhab nia kawm tiav los ntawm qhov uas qhov ntim ntawm cov kua tuaj yeem txiav txim siab.
Thaum twg yuav tsum siv lub burette?
burette, kuj sau buret, kuaj apparatus siv hauv kev tshuaj xyuas kom muaj nuj nqis los ntsuas qhov ntim ntawm cov kua lossis roj. Nws muaj lub raj iav tiav nrog lub stopcock (tig ntsaws, lossis spigot) ntawm ib kawg.
Kev siv burette hauv titration yog dab tsi?
Acid-base titrations yog siv txhawm rau txiav txim siab ntawm cov qauv ntawm cov kua qaub lossis cov hauv pausthiab tau nqa tawm siv cov khoom siv hu ua burette. Nws yog ib tug ntev, iav raj nrog ib tug kais ntawm qhov kawg uas yuav siv tau los ua tib zoo ntxiv tee dej rau ib qho kev sim tshuaj.
Vim li cas peb thiaj siv burette es tsis yog pipette?
Lawv ob leeg muaj gradations los ntsuas kom muaj nuj nqis ntawm cov tshuaj. Thaum burette yog siv los xa cov tshuaj tov nrog ib qho kev paub zoo rau hauv lub khob, pipette yog siv los ntsuas qhov ntau ntawm cov tshuaj ntsuam xyuas- cov tshuaj substrate uas nws cov concentration yog txiav txim siab.
