Cov txheej txheem:

Yuav ua li cas koj standardize pH sojntsuam?
Yuav ua li cas koj standardize pH sojntsuam?

Video: Yuav ua li cas koj standardize pH sojntsuam?

Video: Yuav ua li cas koj standardize pH sojntsuam?
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Standardization yuav tsum tau ua tsis tu ncua. Muab qhov kev nyeem ntawv kawg ntawm qhov pH ntsuas hauv a txheem daws. Sib piv cov ntawv nyeem ntawm lub meter nrog cov paub pH ntawm qhov kev daws teeb meem. Siv cov nyees khawm calibration los hloov cov kev nyeem ntawv ntawm lub meter mus txog rau qhov sib xws ntawm cov txheem daws.

Piv txwv li, koj siv pH tshuaj ntsuam xyuas li cas?

Tso koj electrode nyob rau hauv lub buffer nrog ib pH tus nqi ntawm 7 thiab pib nyeem. Nias lub " ntsuas" lossis calibrate khawm kom pib nyeem ntawv pH ib zaug koj electrode muab tso rau hauv qhov tsis. Tso cai rau pH nyeem kom ruaj khov ua ntej cia nws zaum li ntawm 1-2 feeb.

Ib yam li ntawd, 3 point calibration pH meter yog dab tsi? A pH ntsuas xav tau calibrating muab qhov tseeb pH nyeem.. A pH ntsuas xam cov qauv pH , raws li Nernst kab zauv: A 2 los yog 3 point calibration , siv 2 3 cov kev daws teeb meem sib txawv feem ntau yog txaus rau thawj zaug calibration raws li cov meters electronic logic yuav xam qhov pH tus nqi nyob nruab nrab.

Kuv puas tuaj yeem siv cov dej distilled los ntsuas kuv tus ntsuas pH?

Calibrating pH meters . A pH meter tau tsuas yog muaj tseeb yog tias nws tau calibrated. pH calibration kev daws teeb meem yog buffers thiab lawv pH tsis cuam tshuam los ntawm ib qho me me ntawm dej distilled , uas muaj zoo tsis muaj peev xwm buffering. Ib lub ntim me me ntawm kev daws (feem ntau pH 7 ua ntej) yuav tsum yog siv rau calibration.

Koj siv tus cwj mem hom pH li cas?

Kev siv cwj mem hom pH Meter- pH-009 (I) A

  1. Tshem lub hau tiv thaiv.
  2. Ua ntej ntxuav lub electrode nrog dej distilled (muaj nyob rau hauv feem ntau cov khw muag khoom noj), thiab qhuav nws nrog lim ntawv.
  3. Tig lub ntsuas pH los ntawm "ON-OFF" hloov nyob rau sab saum toj ntawm cov ntaub ntawv roj teeb.

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