Puas muaj lub sijhawm txwv rau cov electrode kom ntub dej hauv cov tshuaj thaum siv lub ntsuas pH?
Lub pH meter / acidity meter electrode yuav tsum tau ntub dej ua ntej siv, vim hais tias pH meter / acidity meter noob yog ib lub iav tshwj xeeb uas muaj nyias hydrated gel txheej nyob rau saum npoo ntawm cov iav membrane, uas tsuas yog siv tau nyob rau hauv cov dej noo tag nrho. . H + ions hauv cov tshuaj muaj cov lus teb zoo. Nyob rau tib lub sijhawm, lub peev xwm asymmetric ntawm iav electrode tuaj yeem txo qis thiab ruaj khov tom qab soaking. Cov iav electrode ntawm pH meter / acidometer feem ntau tuaj yeem tsau rau hauv dej distilled lossis pH meter / acidometer 4 tsis daws teeb meem. Feem ntau nws yog qhov zoo dua los siv pH meter / acidity meter 4 tsis. Lub sij hawm soaking yog 8 teev mus rau 24 teev los yog ntev dua, nyob ntawm seb lub thickness ntawm lub teeb iav zaj duab xis thiab cov degree ntawm electrode aging. Nyob rau tib lub sijhawm, cov kua sib txuas ntawm cov khoom siv electrode kuj yuav tsum tau ntub dej. .Vim hais tias yog cov kua hlws ris dries, lub peev xwm ntawm cov kua hlws ris yuav nce los yog tsis ruaj khov. Cov kua dej ntawm cov khoom 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 siv 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 rau lub khob qhov muag thiab cov kua dej sib txuas tib lub sijhawm. .Tshwj xeeb yuav tsum tau them rau ntawm no, vim hais tias yav dhau los, cov neeg siv ib zaug pH meter / acidity meter iav electrode tau accustomed rau soaking nws nyob rau hauv dej deionized los yog pH meter / acidity meter 4 tsis. Tom qab ntawd, lawv tseem siv pH meter/acidity meter composite electrode. Siv cov txheej txheem so, txawm tias qee cov lus qhia tsis raug rau kev siv nrog pH meter / acidity meter composite electrodes yuav muab cov kev taw qhia tsis raug. Qhov txiaj ntsig ncaj qha ntawm txoj kev ntub dej tsis zoo no yog qhov pH meter nrog kev ua haujlwm zoo yuav raug puas tsuaj. Lub 'meter' / acidity meter composite electrode dhau los ua ib qho electrode nrog cov lus teb qeeb thiab qhov tsis zoo, thiab lub sijhawm immersion ntev dua, qhov ua tau zoo dua, vim tias 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. Nws ua rau cov kua dej sib txuas muaj peev xwm nce thiab ua tsis ruaj khov. Ntawm chav kawm, tsuav yog nws tau ntub dej dua hauv cov dej kom raug rau ob peb teev, cov electrode tseem yuav rov zoo.
Tsis tas li ntawd, pH meter / acidity meter electrodes tsis tuaj yeem muab tso rau hauv nruab nrab lossis alkaline tsis daws teeb meem. Kev tso dej mus ntev hauv cov kev daws teeb meem no yuav ua rau pH meter / acidity meter iav daim nyias nyias teb qeeb. Kho pH meter/acidity meter electrode soaking Kev npaj cov tshuaj: Siv ib pob pH meter/acidity meter 4.00 tsis (250ml), yaj nyob rau hauv 250ml dej ntshiab, ces ntxiv 56 grams ntawm analytical qib KCl, kub. tsim nyog, thiab do kom txog thaum yaj tag. Muaj cov raj mis electrodes nyob rau hauv kev ua lag luam Cov kua dej ntub dej yog nkag rau hauv ob qhov tshwj xeeb: 500ml thiab 50ml. Cov kua dej ntub dej no muaj cov tshuaj tiv thaiv thiab yuav tsis tuaj pwm lossis deteriorate. Lawv 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 qhov hluav taws xob hauv tsev tau nruab nrog lub ntim yas ntim rau ntawm lub taub hau ntawm pH meter / acidity meter composite electrode, uas muaj cov electrode rau soaking. Lub taub hau electrode yog tsau rau hauv cov kua rau lub sijhawm ntev, thiab nws yooj yim heev rau rub tawm thiab ntxuav nws thaum siv. Txoj kev khaws cia no tsis yog yooj yim xwb, tab sis kuj tseem muaj txiaj ntsig zoo rau kev ncua lub neej ntawm electrode. Txawm li cas los xij, cov kua dej so hauv cov yas vial yuav tsum tsis txhob muaj kab mob. Ua tib zoo hloov.
