Kev saib xyuas thiab kev saib xyuas ntawm pH electrodes
1. Yog tias tsis siv pH electrode nyob rau tib lub sijhawm, nws tuaj yeem tsau hauv 3mol / l kcl tov lossis saturated kcl tov. Nws yog nruj me ntsis txwv tsis pub ntub cov electrode hauv dej distilled, dej deionized lossis kais dej uas muaj cov ntsiab lus ion tsawg heev.
2. Yog tias pH electrode tau qhuav rau lub sijhawm ntev thiab raug huab cua, ua ntej rov siv dua, thov tsau cov electrode hauv 3mol / l kcl tov lossis saturated kcl tov rau 2 ~ 3 hnub kom rov ua haujlwm ntawm electrode. . Yog tias ua tau, Thov so cov electrode hauv 9895 electrode regeneration tov rau li 1 feeb, ces ntxuav nws nrog dej distilled, tsau nws hauv 3mol / l kcl los yog saturated kcl tov rau tsawg kawg 1 hnub ua ntej siv nws.
3. Yog hais tias lub electrode rhiab membrane los yog lub pores ntawm cov dawb ceramic diaphragm ua daj vim muaj kuab paug protein, koj muaj peev xwm yuav 9891 electrode tu tov, soak lub electrode nyob rau hauv nws ob peb teev, ces ntxuav nws nrog distilled dej, thiab thaum kawg tsau nws. hauv 3mol / l kcl lossis saturated kcl daws yam tsawg kawg 1 hnub ua ntej siv.
4. Yog hais tias lub electrode lub qhov dawb ceramic diaphragm qhov yog qias neeg los ntawm Aq2S thiab tig dub, koj tuaj yeem yuav 9892 diaphragm ntxuav cov tshuaj, tsau cov electrode rau ob peb teev kom txog thaum lub qhov diaphragm tig dawb dua, ces ntxuav nws nrog dej distilled, thiab thaum kawg. tsau nws hauv 3mol / l kcl lossis saturated kcl daws yam tsawg 1 hnub ua ntej siv.
5. Yog hais tias lub electrode siv ntev dhau lawm thiab cov rhiab membrane yog aging, koj muaj peev xwm yuav 9895 electrode regeneration tov thiab tsau cov electrode nyob rau hauv nws rau 1-10 feeb (lub sij hawm soaking nyob rau hauv lub aging degree thiab txoj kab nqes ntawm lub electrode. rhiab membrane), thiab tom qab ntawd ntxuav nws nrog dej distilled Ntxuav, thiab thaum kawg soak hauv 3mol / l kcl thiab saturated kcl tov rau yam tsawg 1 hnub ua ntej siv. Nws yog nruj me ntsis txwv tsis pub kho cov pH electrode nrog txoj kab nqes siab tshaj 56mv / ph nrog 9895, vim hais tias 9895 electrode regeneration tov muaj HF tov, thiab lub hauv paus ntsiab lus ntawm 9895 yog siv HF los corrode cov laus txheej ntawm cov rhiab zaj duab xis nyob rau saum npoo. Yog hais tias tus tshiab electrode yog soaked nyob rau hauv 9895 electrode regeneration tov los yog cov qub electrode yog soaked nyob rau hauv nws ntev dhau lawm, HF yuav kuj corrode qhov zoo rhiab zaj duab xis ib feem.
6. Yog tias cov pH electrode muaj cov khoom tsis zoo, nws tuaj yeem ntxuav nrog 0.1mol/l Hcl lossis NaOH tov rau ob peb feeb, thiab tom qab ntawd ntxuav nrog dej distilled.
7. Yog hais tias cov pH electrode yog paug los ntawm cov organic tshuaj, nws tuaj yeem ntxuav nrog cawv lossis acetone, thiab tom qab ntawd ntxuav nrog dej distilled.
8. Yog tias koj paub tias yam khoom twg tuaj yeem siv los ua kom yaj cov khoom uas ua rau cov electrode, koj yuav tsum siv cov khoom zoo li cas los ntxuav nws.
9. Thov nco ntsoov tias pH electrode kho nrog 9891, 9892 lossis 9895 yuav tsum tsis txhob ntsuas lossis ntsuas tam sim ntawd, vim tias lub electrode tsis tuaj yeem ntsuas lub sijhawm ntawd, thiab cov electrode yuav tsum tau tsau rau hauv 3mol / l lossis saturated kcl tov kom tsawg. 1 hnub ua ntej siv.
10. Kev sib koom ua ke ntawm qhov kawg ntawm pH electrode thiab cable yog qhov siab-impedance. Nws yog txwv tsis pub soak hauv cov kua xws li dej los yog corroded los ntawm huab cua ntub xws li chav. Nws tuaj yeem npog nrog cov txiv ntseej liab me me uas txuas nrog lub electrode tshiab. Kev sib koom ua ke ntawm cov hluav taws xob hluav taws xob kuj tseem yog cov khoom siv High-impedance yog nruj me ntsis txwv tsis pub ua kom ntub dej xws li dej los yog corroded los ntawm huab cua ntub xws li chav, thiab yuav tsum tau muab cia rau hauv qhov chaw qhuav.
