Qhov sib txawv ntawm kev ntsuas acidity thiab ntsuas pH
Lub ntsuas acidity thiab pH ntsuas yog tib yam, thiab yog cov high-precision muaj hauv internet tsis siv neeg nruam nrhiav kom tau acidity thiab alkalinity analytical instruments.
Lub pH meter, luv luv li pH meter, muaj ob ntu: electrode thiab ammeter. Nws yog cov cuab yeej siv thiab cov cuab yeej siv feem ntau, suav nrog cov khoom siv electrode, iav electrode, thiab ammeter. Siv dav hauv kev lag luam, kev ua liaj ua teb, kev tshawb fawb tshawb fawb, kev tiv thaiv ib puag ncig, thiab lwm yam.
Acidimeter yog ib qho cuab yeej siv feem ntau thiab cov cuab yeej siv, tseem hu ua pH meter. BPH-200A series pH meter feem ntau yog siv los ntsuas qhov tseeb ntawm pH tus nqi ntawm cov kua tawm, thiab tseem tuaj yeem ntsuas MV tus nqi ntawm ion electrode muaj peev xwm thaum nruab nrog cov khoom siv hluav taws xob sib xws. Nws yog dav siv hauv kev lag luam, kev ua liaj ua teb, kev tshawb fawb tshawb fawb, kev tiv thaiv ib puag ncig thiab lwm yam. Cov cuab yeej no tseem yog cov cuab yeej tshuaj xyuas rau QS thiab HACCP daim ntawv pov thawj hauv cov chaw tsim khoom noj thiab cov dej haus.
Lub acidimeter yog ib qho cuab yeej siv los ntsuas pH tus nqi ntawm cov tshuaj. Lub cev tseem ceeb ntawm lub ntsuas acidity yog qhov tseeb potentiometer. Thaum ntsuas, cov hluav taws xob sib xyaw yog muab tso rau hauv cov ntsuas ntsuas, thiab cov hluav taws xob sib txawv yog tsim los ntawm acidity (hydrogen ion concentration) ntawm cov tshuaj ntsuas. Nws yog amplified los ntawm DC amplifier thiab thaum kawg qhia los ntawm kev nyeem ntawv qhia (voltmeter) los txiav txim siab pH tus nqi ntawm cov tshuaj ntsuas. Lub ntsuas acidity tuaj yeem siv nyob rau hauv pH ntau ntawm 0-14.
Kub them nyiaj ua haujlwm ntawm pH meter thiab electrode calibration txoj kev ntawm pH meter
Kev them nyiaj kub ntawm pH meter yuav tsum suav nrog peb ntu: kev them nyiaj kub rau electrode slope thiab kub them rau electrode xoom point (xws li ntsuas electrode thiab siv electrode). Qhov ntsuas kub ntawm qhov ntsuas pH tsuas yog them rau qhov nqes hav ntawm electrode (2.303RT / F). Yog li ntawd, kev them nyiaj kub tsis txaus rau kev ntsuas pH meter thiab tsis tuaj yeem tshem tawm qhov yuam kev los ntawm qhov kub thiab txias. Txawm li cas los xij, vim lub sij hawm kub ntawm qhov kev daws teeb meem thiab xoom point kub lub sij hawm ntawm electrode, uas tsis tuaj yeem txiav txim siab thiab ua rau muaj qhov yuam kev me me, lawv raug tshem tawm.
