Cov teeb meem dab tsi yuav tsum tau sau tseg thaum siv pH / acidity meter electrodes
Ua ntej ua haujlwm tom ntej tom qab txhua qhov ntsuas thiab ntsuas, cov electrode yuav tsum tau ntxuav nrog dej distilled lossis dej deionized, thiab tom qab ntawd ntxuav nrog cov tshuaj ntsuam xyuas ib zaug.
2. Thaum tshem cov electrode sheath ntawm pH / acidity meter, tsis txhob sib cuag ntawm cov iav npuas npuas ntawm cov electrode thiab cov khoom tawv, vim tias kev puas tsuaj los yog puas yuav ua rau cov electrode ua tsis tiav.
3. Tom qab kev ntsuas tiav, muab lub pH/acidity meter electrode tiv thaiv tam sim ntawd. Ib qho me me ntawm cov kua qaub KCL yuav tsum tau muab tso rau hauv lub npog electrode kom cov electrode npuas moist, thiab tsis txhob muab tso rau hauv dej distilled.
4. Cov tshuaj siv sab nraud ntxiv rau pH / acidity meter composite electrode yog 3mol / L potassium chloride tov. Cov tshuaj ntxiv tuaj yeem muab ntxiv los ntawm ib lub qhov me me rau saum cov electrode. Thaum tsis siv cov electrode sib xyaw, npog nws nrog cov roj hmab stopper kom tiv thaiv cov tshuaj ntxiv kom qhuav.
5. Cov hlau lead tawm kawg ntawm pH/acidity meter electrode yuav tsum tau ceev kom huv si thiab qhuav kom tsis txhob luv luv Circuit Court ntawm ob qhov kawg ntawm cov zis, txwv tsis pub nws yuav ua rau kev ntsuas yuam kev lossis tsis ua haujlwm.
6. Lub electrode ntawm pH meter/acidity meter yuav tsum tau sib phim nrog pH meter nrog lub siab input impedance ntawm Greater los yog sib npaug rau 3 × 1011 Ω kom muaj cov yam ntxwv zoo.
7. pH/acidity meter electrodes yuav tsum tsis txhob ncua sij hawm immersion nyob rau hauv dej distilled, protein tov, thiab acidic fluoride tov.
8. Tsis txhob sib cuag ntawm cov electrodes ntawm pH/acidity meter thiab organic silicone roj.
Tom qab siv mus ntev, yog tias txoj kab nqes ntawm pH / acidity meter electrode qis me ntsis, qhov qis kawg ntawm cov electrode tuaj yeem soaked hauv 4% HF hydrofluoric acid rau 3-5 vib nas this, ntxuav nrog dej distilled, thiab tom qab ntawd soaked. hauv 0.1mol/L hydrochloric acid daws kom rov qab los. Nws yog qhov zoo tshaj los hloov cov electrode.
10. Yog tias cov tshuaj ntsuam xyuas muaj cov tshuaj uas tuaj yeem kis tau yooj yim ua npuas ncauj lossis thaiv cov kua sib txuas, ua rau cov electrode passivation, yuav muaj qhov txo qis hauv txoj kab nqes thiab cov ntawv nyeem tsis raug. Yog tias qhov tshwm sim no tshwm sim, cov electrode yuav tsum tau muab ntxuav nrog cov tshuaj tsim nyog raws li qhov xwm txheej ntawm cov pa phem kom rov qab los ntawm nws lub xeev qub.
