Puas muaj lub sijhawm txwv rau cov electrode kom ntub dej hauv cov tshuaj thaum siv pH meter?
Lub pH meter / acidity meter electrode yuav tsum tau tsau ua ntej siv, vim hais tias lub teeb ntawm pH meter / acidity meter yog ib qho tshwj xeeb iav daim nyias nyias, thiab muaj ib tug nyias nyias hydrated gel txheej nyob rau saum npoo ntawm lub iav daim nyias nyias, uas tsuas yog yuav tsum tau. tau tshaj pH meter nyob rau hauv cov dej ntub dej. H plus ions hauv cov tshuaj muaj cov lus teb zoo. Nyob rau tib lub sijhawm, lub peev xwm asymmetric tuaj yeem txo qis thiab ruaj khov tom qab soaking iav electrode. Feem ntau, cov iav electrode ntawm pH meter / acidity meter tuaj yeem tsau rau hauv dej distilled lossis pH meter / acidity meter 4 tsis daws teeb meem. Feem ntau nws yog qhov zoo dua los siv pH meter / acidity meter 4 tsis muaj kev daws teeb meem, lub sij hawm ntub dej yog 8 teev mus rau 24 teev lossis ntev dua, nyob ntawm qhov tuab ntawm lub teeb iav zaj duab xis thiab cov qib laus ntawm cov electrode. Nyob rau tib lub sijhawm, cov kua dej sib txuas ntawm cov khoom siv electrode kuj yuav tsum tau ntub dej .Vim yog tias cov kua dej sib txuas dries, lub peev xwm ntawm cov kua hlws ris yuav nce los yog tsis ruaj khov. Cov tshuaj immersion ntawm cov ntaub ntawv siv electrode yuav tsum ua raws li cov lus qhia sab nraud ntawm cov khoom siv electrode, uas yog, 3.3mol / L KCL tov lossis saturated KCL tov. Lub sijhawm feem ntau yog ob peb teev. Yog li ntawd, rau pH meter / acidity meter composite electrode, nws yuav tsum tau tsau rau hauv pH meter / acidity meter 4 tsis muaj tshuaj uas muaj KCL, kom nws tuaj yeem ua haujlwm ntawm lub iav qhov muag teev thiab cov kua dej sib txuas tib lub sijhawm. Kev saib xyuas tshwj xeeb yuav tsum tau them rau ntawm no, vim hais tias yav dhau los cov neeg siv ib qho pH meter / acidity meter iav electrode thiab tau siv los so hauv dej deionized los yog pH meter / acidity meter 4 tsis siv tshuaj, thiab tom qab ntawd thaum siv pH meter / acidity. meter composite electrode Siv cov txheej txheem ntub dej zoo li no, txawm tias nyob rau hauv phau ntawv qhia ntawm qee qhov tsis raug pH meter / acidity meter composite electrodes, hom kev taw qhia tsis raug yuav raug coj los ua. Qhov txiaj ntsig ncaj qha ntawm txoj kev ntub dej tsis zoo no yog ua kom lub ntsuas pH nrog kev ua haujlwm zoo Cov khoom siv hluav taws xob sib xyaw ntawm pH meter / pH meter dhau los ua cov electrode nrog cov lus teb qeeb thiab tsis zoo, thiab ntev dua lub sijhawm immersion, qhov ua tau zoo dua, vim Tom qab lub sijhawm ntev ntawm kev tso dej, KCL concentration hauv cov kua dej sib txuas (xws li hauv cov xuab zeb core) tau txo qis heev, ua rau cov kua dej sib txuas muaj peev xwm nce thiab tsis ruaj khov. Tau kawg, tsuav yog nws rov muab tso rau hauv qhov dej kom raug rau ob peb teev, cov electrode tseem yuav rov zoo.
Tsis tas li ntawd, pH meter / acidity meter electrode yuav tsum tsis txhob muab tso rau hauv nruab nrab lossis alkaline tsis daws teeb meem. Kev nkag mus rau lub sijhawm ntev hauv cov kev daws teeb meem no yuav ua rau cov iav membrane ntawm pH meter / acidity meter teb qeeb. Kho pH meter/acidity meter electrode immersion Solution npaj: Siv ib pob pH meter/acidity meter 4.00 tsis (250ml), yaj nyob rau hauv 250ml dej ntshiab, ntxiv 56 grams ntawm analytical ntshiab KCl, cua sov kom zoo, thiab do kom txog thaum yaj tag. Muaj cov raj mis electrodes nyob rau hauv kev ua lag luam Cov dej so so yog nkag rau hauv ob qhov ntau thiab tsawg: 500ml thiab 50ml. Cov kev daws teeb meem no muaj cov khoom siv khaws cia, yuav tsis pwm thiab deteriorate, thiab muaj lub neej txee ntawm ib xyoos.
Txhawm rau ua kom lub pH meter / acidity meter composite electrode siv tau yooj yim dua, qee qhov pH meter / acidity meter composite electrodes thiab qee cov khoom siv hluav taws xob hauv tsev tau nruab nrog lub hnab yas kaw ntawm lub taub hau ntawm pH meter / acidity meter composite electrode, thiab cov electrode sab hauv yog soaked. Lub taub hau electrode yog tsau rau hauv nws ntev, thiab nws yooj yim heev los rub tawm thiab ntxuav nws thaum siv nws. Txoj kev khaws cia no tsis yog yooj yim xwb, tab sis kuj tseem muaj txiaj ntsig zoo los ua kom lub neej ntev ntawm cov electrode, tab sis cov kua dej hauv cov yas vial yuav tsum tsis txhob muaj kuab paug. hloov.
