Koj yuav tsum xyuam xim rau dab tsi thaum ntsuas nrog acidometer sensor?
Ua ntej yuav mus, qhov kev ncaj ncees ntawm cov electrodes yuav tsum tau kuaj ua ntej. Tam sim no, feem ntau ntawm cov electrodes siv rau acidimeters (pH meters) yog cov electrodes sib xyaw. Cov laus tiam ntawm acidimeters tseem siv iav electrodes thiab calomel electrodes. Txij li cov khoom siv electrodes tau dav siv, cov hauv qab no feem ntau tham txog cov electrodes sib xyaw.
Tam sim no, cov khoom siv hluav taws xob sib xyaw siv nyob rau hauv cov chaw soj nstuam feem ntau suav nrog cov khoom ntim tag nrho thiab tsis nyob hauv ib puag ncig. Muaj ob peb lub kaw lus electrodes, uas yog tsim los ntawm cov tuam txhab txawv teb chaws. Ua ntej siv cov khoom siv hluav taws xob sib xyaw, ua ntej xyuas seb lub iav qhov muag puas tawg lossis tawg. Yog hais tias tsis yog, thaum ua ob-point calibration nrog ib tug pH tsis tov, thaum ob qho tag nrho cov positioning thiab txoj kab nqes nyees khawm tuaj yeem hloov kho rau tus nqi pH, nws feem ntau suav hais tias muaj kev nyab xeeb siv. Txwv tsis pub, nias Siv cov lus qhia rau kev ua kom electrode. Txoj kev ua kom dej yog tsau rau hauv 4% hydrogen fluoride tov rau li 3 mus rau 5 vib nas this, tshem tawm thiab yaug nrog dej distilled, ces tsau rau hauv 0.1mol / L hydrochloric acid tov rau ob peb teev, yaug nws nrog dej distilled, thiab tom qab ntawd calibrate nws, uas yog, siv tus nqi pH Tso cov tshuaj tsis nyob ntawm 6.86 (25 degree ). Tom qab hloov kho, xaiv lwm cov tshuaj pH tsis kho kom kho qhov nqes hav. Yog tias nws tsis tuaj yeem hloov kho, lub electrode yuav tsum tau hloov. Rau cov khoom siv hluav taws xob tsis sib txuas, ib qho kev siv sab nraud, uas yog, 3 mol / L potassium chloride tov, yuav tsum tau ntxiv. Yog li ntawd, nws yog ib qho tsim nyog los xyuas seb cov tshuaj potassium chloride hauv cov electrode puas siab dua 1/3. Yog tias tsis yog, 3 mol / L yuav tsum tau ntxiv. Potassium chloride tov. Yog tias cov tshuaj potassium chloride tshaj qhov chaw ntawm lub qhov me me, co tawm cov tshuaj poov tshuaj chloride ntau dhau kom cov tshuaj nyob hauv qab lub qhov me me, thiab xyuas seb puas muaj npuas nyob hauv cov tshuaj. Yog tias muaj npuas, flick lub electrode kom tsav lawv tawm tag nrho.
