Qhov sib txawv tseem ceeb ntawm qhov taw qhia electrode thiab siv electrode yog qhov taw qhia electrode teb rau cov kev hloov pauv hauv cov haujlwm ntawm cov tshuaj ntsuam xyuas, qhov kev siv electrode tsis teb rau cov kev hloov pauv, thiab nws cov lus teb yog ruaj khov.
ntsuas electrode thiab siv electrode yog ob yam tseem ceeb hauv potentiometric titrations. Cov no yog qhov tseem ceeb los ua kom muaj peev xwm ntsuas tau. Ntawm no, ib qho hluav taws xob hloov pauv raws li qhov kev hloov pauv hauv qhov ntsuas ntsuas (qhov ntsuas hluav taws xob) thaum lwm qhov hluav taws xob nyob ruaj khov nrog cov lus teb ruaj khov (reference electrode).
Qhov taw qhia Electrode yog dab tsi?
ntsuas electrode yog ib qho ntawm ob lub electrodes uas cov lus teb hloov pauv raws li kev hloov pauv hauv cov tshuaj ntsuam xyuas. Muaj ntau hom kev ntsuas electrodes peb tuaj yeem siv los txiav txim qhov kawg ntawm potentiometric titrations. Ntxiv mus, ib co piv txwv muaj xws li iav electrode, hlau ion qhov taw qhia electrode, thiab lwm yam. Peb denote no electrode li IE. Cov electrode no muaj ib daim nyias nyias uas rhiab heev rau cov kev ua ntawm cov tshuaj ntsuam xyuas. Yog li ntawd, lub peev xwm ntawm IE nyob ntawm qhov concentration ntawm cov tshuaj ntsuam xyuas. Ntawm no, cov tshuaj ntsuam xyuas nkag mus rau hauv cov khoom siv electrode, uas ua rau muaj kev hloov pauv hauv daim nyias nyias (qhov no yog vim kev hloov pauv ntawm cov khoom siv hluav taws xob).
