Taw qhia ntawm peb electrodes ntawm pH meter
Dab tsi yog pH qhia txog electrode?
Cov electrode uas teb rau cov kev ua ntawm hydrogen ions nyob rau hauv cov tshuaj thiab cov electrode tej zaum yuav hloov raws li ib tug hu ua pH qhia electrode los yog pH ntsuas electrode. Muaj ntau ntau hom pH qhia txog electrodes, xws li hydrogen electrode, antimony electrode thiab iav electrode, tab sis feem ntau siv ib qho yog iav electrode. Cov iav electrode yog tsim los ntawm iav strut thiab hydrogen ion-sensitive iav daim nyias nyias uas muaj qhov tshwj xeeb muaj pes tsawg leeg. Lub iav daim nyias nyias yog feem ntau nyob rau hauv cov duab ntawm lub teeb. Lub teeb tau sau nrog cov tshuaj siv sab hauv, muab tso rau hauv ib qho kev siv hluav taws xob sab hauv (feem ntau yog nyiaj / nyiaj chloride electrode), kaw nrog lub hau electrode coj tawm cov xov hlau, thiab haum nrog lub qhov (socket) los ua pH ntsuas. electrode. Ib qho pH qhia electrode tsis tuaj yeem ntsuas, nws yuav tsum ntsuas ua ke nrog cov khoom siv electrode.
2. Dab tsi yog qhov siv electrode?
Ib qho hluav taws xob uas tsis teb rau cov dej num ntawm hydrogen ions hauv kev daws thiab muaj lub peev xwm paub thiab tsis tu ncua electrode yog hu ua siv electrode. Muaj ntau yam siv electrodes xws li mercurous sulfate electrode, calomel electrode thiab nyiaj / silver chloride electrode. Feem ntau siv yog calomel electrodes thiab nyiaj / silver chloride electrodes. Lub luag haujlwm ntawm cov khoom siv hluav taws xob hauv kev ntsuas roj teeb yog los muab thiab tuav lub peev xwm siv tau ruaj khov. Yog li ntawd, qhov yuav tsum tau ua rau cov khoom siv electrode yog qhov ruaj khov thiab muaj peev xwm rov tsim tau, me me kub coefficient, thiab me me polarization muaj peev xwm thaum tam sim no dhau mus.
3. Dab tsi yog pH electrode?
Ib qho hluav taws xob uas sib txuas nrog pH iav electrode thiab siv hluav taws xob siv hu ua pH electrode. Cov ntaub ntawv nrog lub plhaub yas hu ua yas plhaub pH sib xyaw electrode. Ib qho nrog iav plhaub yog hu ua iav pH sib xyaw electrode. Qhov txiaj ntsig loj tshaj plaws ntawm cov khoom siv hluav taws xob sib xyaw yog tias nws muab ob qho tib si rau hauv ib qho thiab siv tau yooj yim. Cov qauv ntawm pH compound electrode yog tsim los ntawm electrode noob, iav kev txhawb nqa pas nrig, sab hauv siv electrode, sab hauv siv tshuaj, plhaub, sab nraud siv electrode, sab nraud siv tshuaj, kua hlws ris, electrode cap, electrode hlau, socket thiab lwm yam.
