Yuav siv cov ph meter li cas
Ua ntej, kev npaj ua haujlwm ua ntej siv ph meter
1. Ntxuav lub electrode nrog triple distilled dej ua ntej siv lub pH meter, thiab ceev faj tsis txhob ua txhaum lub iav electrode.
2. Npaj muab cov tshuaj NAOH thiab HCL tov rau kev hloov kho ntawm lub platform pH meter.
3. Tshem tawm cov tshuaj pH ruaj khov (PH=70) hauv lub tub yees thiab muab tso rau ntawm lub platform.
4. Qhib lub ntsuas pH, kho tus nqi pH, nias tus yuam sij ︿﹀ xaiv PH thiab CAL xaiv, xaiv cov khoom CAL, kho thiab ntxig rau hauv PH tov (PH=7.{{2 } }), nias tus yuam sij " " xaiv cov ntaub ntawv tus nqi rau 7.0, Ib tug me me octopus tuaj yeem tshwm sim.
5. Ntxig lub iav electrode rau hauv cov tshuaj yuav tsum tau kuaj, tom qab ntawd muab tso rau hauv lwm lub electrode, thiab do cov kua kom zoo (ceeb toom: tsis txhob tawg lub iav electrode).
6. Thaum siv lub tshuab hluav taws xob ntawm pH meter, yuav tsum tau them nyiaj rau kev tiv thaiv ntawm lub voj voog. Thaum tsis ntsuas pH tus nqi, cov tswv yim ntawm pH meter yuav tsum luv luv kom tsis txhob muaj kev puas tsuaj rau pH meter.
7. Lub qhov (socket) iav electrode ntawm lub ntsuas pH yuav tsum tau ua kom huv si, huv si thiab qhuav, thiab yuav tsum tsis txhob raug cov pa phem xws li ntsev tsuag thiab kua qaub pos. Nyob rau tib lub sij hawm, nws yog nruj me ntsis txwv tsis pub muaj cov tshuaj aqueous ntawm lub iav electrode qhov (socket) kom tsis txhob muaj cov input siab impedance ntawm pH meter.
8. Ceev faj ntxiv cov tshuaj NAOH thiab HCL tov thaum tus nqi pH koj xav tau tsis ncav cuag.
9. Ceev faj kom tsis txhob siab tshaj qhov yuav tsum tau ntim ntim thaum ntxiv cov kua.
2. Yuav ua li cas siv ph meter _Yuav ua li cas siv ph meter (cov kauj ruam)
1. Qhib lub hau rov qab thiab ntxig lub roj teeb.
2. Txhim kho cov iav hluav taws xob sib xyaw Cov Lus Cim:
(1) Qhov qis kawg ntawm cov khoom siv hluav taws xob sib xyaw yog lub khob iav tsis yooj yim, yog li ceev faj thaum siv thiab khaws cia kom tsis txhob sib tsoo nrog lwm yam khoom.
(2) Muaj cov tshuaj KCl saturated hauv cov khoom siv hluav taws xob ua cov khoom nruab nrab. Yog tias qhov tshwm sim ntawm kev ziab yog qhov tsis raug, koj yuav tsum saib xyuas seb puas muaj cov kua dej txhua lub sijhawm. Yog tias muaj me me tshuav, mus rau hauv chav kuaj perfusion.
(3) Tsis muaj kuab paug, suav nrog cov tee dej, raug tso cai ntawm qhov ntsuas qhov sib txuas ntawm cov electrode sib xyaw.
(4) Kev sib txuas electrode tsis tuaj yeem raug yuam kom rub los tiv thaiv kab txuas ntawm kev tawg.
3. Tom qab qhib lub hwj huam hloov, hloov mus rau cov ntaub ntawv ntsuas PH.
4. Ntsuas qhov ntsuas kub ntawm PH6.86 tus qauv tov nrog tus pas ntsuas kub, thiab tom qab ntawd kho qhov kub ntawm qhov ntsuas kub ntawm PH meter mus rau qhov ntsuas kub.
5. Yaug cov khoom siv electrode nrog dej deionized thiab qhuav nrog cov ntawv lim.
6. Ncuav 2-5ml ntawm PH6.86 txheem tov rau hauv lub raj mis yas uas tau ntxuav thiab qhuav nrog dej, ncuav nws tawm tom qab ntxuav lub beaker thiab cov electrode sib xyaw, ces ntxiv 20ml ntawm cov pH6. Ob lub ntsiab lus hauv qab no yuav tsum tau sau tseg:
(1) Lub ntsis yuav tsum tau kho nrog PH6.86 tus qauv.
(2) Tom qab kev hloov kho, lub pob qhov rooj yuav tsum tsis txhob txav mus ntxiv.
7. Ntxuav cov khoom siv hluav taws xob nrog dej deionized, qhuav nrog cov ntawv lim, ntsuas qhov ntsuas kub ntawm PH4.00 daws nrog lub ntsuas kub, thiab kho qhov kub thiab txias ntawm qhov ntsuas ntsuas rau qhov ntsuas kub.
8. Ncuav 2-5ml ntawm PH4.00 txheem tov rau hauv lwm lub raj mis yas, ntxuav lub beaker thiab composite electrode, ces ncuav nws tawm, ces ntxiv 20ml ntawm PH4.00 txheem tov, ntxig cov hluav taws xob sib xyaw rau hauv cov tshuaj, tom qab kev nyeem ntawv ruaj khov, siv lub pob qhov nqes hav los Kho kom haum rau pH 4.00. Nws yuav tsum tau muab sau tseg tias tom qab qhov kev nqes pob qhov rooj raug kho, nws yuav tsum tsis txhob txav mus ntxiv.
9. Siv tus pas ntsuas kub ntsuas qhov ntsuas kub ntawm cov kua yuav tsum tau kuaj, thiab kho qhov kub thiab txias ntawm lub ntsuas ntsuas ntsuas qhov ntsuas kub.
10. Ntxig cov hluav taws xob sib xyaw rau hauv cov tshuaj yuav tsum tau kuaj, thiab nyeem cov pH tus nqi, uas yog tus nqi pH ntawm cov tshuaj yuav tsum tau kuaj. Ob lub ntsiab lus hauv qab no yuav tsum tau sau tseg:
(1) Qhov ntsuas kub yuav tsum tsis txhob siab dhau thaum ntsuas. Yog tias qhov ntsuas ntsuas tsis raug tshaj 40 degree, tshem nws tawm nrog lub beaker thiab txias me ntsis.
(2) Tsis txhob hu rau cov khoom siv hluav taws xob sib xyaw nrog cov khoom siv organic, thiab ntxuav nws nrog anhydrous ethanol ib zaug hu lossis kis kab mob.
