Kev tu thiab ceev faj ntawm photug
1. Luv luv cia cia ntawm Ph iav cov khoom siv hluav taws xob: khaws cia hauv kev daws teeb meem nrog pH {1}}; Lub sij hawm ntev: Muab cia rau hauv kev daws teeb meem tsis txaus nrog pH =7.
2. Kev tu ntawm PHY iav cov xov hluav taws xob yuav txuas lub sijhawm electrode teb yog cov iav electrode npuas yog qhov tsis huv. Siv CCL4 lossis xab npum kom so av, ces raus nyob rau hauv dej distilled rau ib hnub thiab hmo ua ntej siv txuas ntxiv. Thaum muaj kuab paug yog hnyav, soak nyob rau hauv 5% hak daws rau {}} feeb, thiab tom qab ntawd}. 1n hchl tov rau ib hnub thiab hmo ntuj ua ntej siv txuas ntxiv.
3. Kev laus ntawm iav cov hluav taws xob muaj feem rau kev hloov maj mam hauv cov qauv txheej txheem txheej txheem. Lub qub electrode muaj cov lus teb qeeb, lub siab ua tsis kam, thiab txoj kab nqes tsawg. Etching tawm txheej txheej sab nraud ntawm cov txheej txheej nplaum nrog hydrofluoric acid tuaj yeem ntau txhim kho cov electrode kev ua tau zoo. Yog tias hom qauv no tuaj yeem siv los tshem tawm cov txheej txheem sab hauv thiab sab nraud nplaum, lub neej ntawm electrode yog yuav luag tsis kawg.
4. Kev tso tawm cia rau qhov kev siv hluav taws xob hauv hluav taws xob cov roj av hluav taws xob hluav taws xob yog cov tshuaj pleev cov poov tshuaj vhloride tov. Ib tug siab zoo tshuaj potassium chloride tov tuaj yeem tiv thaiv cov chloride los ntawm nag los ntawm cov kua interface thiab tswj cov kua interface hauv kev ua haujlwm. Hom no tseem siv tau rau kev khaws cov hluav taws xob sib xyaw.
5. RESENERATION ntawm kev siv electrode
Feem ntau ntawm cov teeb meem nrog cov hluav taws xob siv hluav taws xob yog tshwm sim los ntawm kev thaiv ntawm cov kua interface, uas tuaj yeem daws cov hau kev hauv qab no:
① Soaking kev daws teeb meem: Siv sib xyaw ntawm 10% Saturent cov poov tshuaj tshuaj dawb, ua kom sov}} Txoj kev no tuaj yeem yaj cov muaju ntawm lub electrode kawg.
② Ammonia raushe: Thaum cov khoom siv ua kua yog thaiv los ntawm cov tshuaj pleev pob zeb, muaj cov dej nyab ammonia tuaj yeem siv rau kev raus dej. Cov txheej txheem tshwj xeeb yog los sau rau cov electrode, ntws cov kua, thiab nqus dej rau {}} feeb, tab sis tsis txhob cia cov dej ammonia nkag mus sab hauv. Tshem tawm cov electrode thiab ntxuav nws nrog dej distilled. Ntxiv cov kev sib xyaw ntxiv dua thiab txuas ntxiv siv.
Lub tshuab nqus tsev: Npog qhov kev siv hluav taws xob ua kua nrog ua kua, siv cov dej ntws nqus dej kom nqus tau cov kua ua kua los ntawm cov kua dej ua kua, thiab tshem tawm cov kev thaiv kev ua kua, thiab tshem tawm cov kev thaiv kev ua kua.
④ Boiling liquid interface: The liquid interface of the silver silver chloride reference electrode is immersed in boiling water for 10-20 seconds. Nco ntsoov tias lub electrode yuav tsum txias rau chav sov ua ntej rau kev npau npau tom ntej.
⑤ Thaum cov txheej txheem saum toj no tsis muaj txiaj ntsig, cov txheej txheem tshuab xws li cov xuab zeb sib tsoo tuaj yeem siv los tshem tawm cov blockages. Txoj kev no yuav ua rau cov av hauv av xuab zeb kom tso rau hauv cov kua interface. Ua rau muaj kev thaiv ruaj khov.
cov kev ceev faj
1. Thaum lub electrode tsis siv, tag nrho nws nyob rau hauv electrode kev tiv thaiv kev daws teeb meem. Cov kev daws teeb meem hluav taws xob yuav tsum tau hloov raws sijhawm, ib zaug ib asthiv. Tsis txhob xau dej los yog lub ntsej muag ntshiab nrog xab npum lossis lwm yam nqus dej uas nqus tau.
2. Thaum ntsuas kev daws teeb meem nrog cov kev ntsuas siab, sim ua kom muaj kev ntsuas lub sijhawm ntau li ntau tau, thiab tiv thaiv cov kua ntsuas los ntawm cov hluav taws xob thiab paug rau nws.
3. Tom qab ntxuav cov electrodes, tsis so daim ntawv ua yeeb yaj kiab nrog daim ntawv dawb, tab sis siv cov duab paug, tiv thaiv kev sib kis, thiab cuam tshuam rau kev ntsuas qhov tseeb.
4. Lub sijhawm ntsuas, nws yog ib qho tseem ceeb kom nco ntsoov tias cov nyiaj chloride sab hauv electrode electrode yuav tsum tau muab raus hauv cov tshuaj chloride hauv cov noob. Thaum cov kev siv sab nraud yog tsawg dua 1/3, nws yuav tsum tau ntxiv nyob rau hauv lub sijhawm kom tsis txhob muaj kev sib tw digital dhia hauv electrode zaub. Thaum siv, ceev faj maj mam maj mam co chav electrode ob peb zaug.
5. Cov tshuab hluav taws xob tsis tuaj yeem siv rau cov kua qaub muaj zog, hauv paus muaj zog, lossis lwm yam kev daws teeb meem.
6. Nws yog nruj me ntsis txwv tsis pub siv nyob rau hauv lub cev qhuav me me xws li ethanol, Potassium Dichromate, thiab lwm yam.
7. Tus qauv Buffer PE qauv yuav tsum tau muab ntim thiab khaws cia rau hauv qhov chaw qhuav.
