Iimitha ze-pH eziphathekayobaye bayiguqula indlela izazinzulu, abaphandi, kunye neengcali zolawulo lomgangatho wokulinganisa ubumuncu kunye nealkalinity kwizisombululo ezahlukeneyo. Ngokungafaniyo neemitha eziphezulu zebhentshi, iimodeli eziphathwayo zibonelela ngokulula, isantya, kunye nokuchaneka kuzo zombini iimeko zaselabhoratri kunye nentsimi. Eli nqaku liphonononga indlela iimitha ze-pH eziphathekayo ezisebenza ngayo, iingenelo zazo, izicelo, iingcebiso zokukhetha, izikhokelo zokugcinwa, kunye nemibuzo ebuzwa rhoqo ukunceda abasebenzisi ukwenza izigqibo ezinolwazi kunye nokwandisa ukuhamba kwabo komsebenzi.
Iimitha ze-pH eziphathekayo zisebenza kumgaqo wokulinganisa umsebenzi we-ion ye-hydrogen kwisisombululo, ukuyiguqula ibe ngumqondiso wombane oboniswe njengexabiso le-pH. Amacandelo aphambili aquka i-electrode ye-pH-sensitive electrode, i-electrode yereferensi, kunye ne-microprocessor ebala i-pH ngokusekelwe kwiiyantlukwano zombane.
Ngokungafaniyo nemitha yelabhoratri, iimitha ze-pH eziphathwayo zenzelwe ukushukumiseka ngaphandle kokuphazamisa ukuchaneka. Ngokuqhelekileyo zisebenza ngebhetri, zikhaphukhaphu, kwaye ziza necasing ekhuselayo ukumelana neendawo ezingaphandle okanye kwimizi-mveliso.
| Icandelo | Umsebenzi |
|---|---|
| pH Electrode | Ilinganisa ugxininiso lwe-hydrogen ion kwisisombululo |
| Reference Electrode | Ibonelela ngamandla ombane azinzileyo kumlinganiselo ochanekileyo we-pH |
| Microprocessor | Ibala ixabiso le-pH kwaye libonise ngedijithali |
Iimitha eziphathwayo ze-pH zamkelwa ngokubanzi kuwo onke amacandelo amaninzi ngenxa yokusebenziseka kwazo kunye nokuchaneka kwazo:
Xa ukhetha imitha ye-pH ephathekayo, qwalasela le miba ilandelayo:
| Umba | Ukubaluleka |
|---|---|
| Ukuchaneka | Qinisekisa ukuba isilinganisi-manzi sibonelela ngofundo oluthembekileyo phakathi kwe-±0.01–0.1 yeeyunithi ze-pH ngokuxhomekeke kwisicelo sakho. |
| Uhlobo lweProbe | Khetha i-electrodes efanelekileyo kwisampulu ephakathi (ulwelo, umhlaba, i-semi-solid). |
| Umboniso kunye neNdibaniselwano | Khangela imiboniso yedijithali ecacileyo kunye nokusebenza okucacileyo kusetyenziso lwasendle. |
| Ukuqina | Qwalasela ukuxhathisa amanzi, ukhuseleko lokulahla, kunye nokunyamezela ubushushu kuvavanyo lwangaphandle. |
| Ulungelelwaniso | Khetha iimitha ezinolungelelwaniso olulula lwamanqaku amaninzi kunye nembuyekezo yobushushu obuzenzekelayo. |
Ukugcina ukusebenza kakuhle, iimitha ze-pH eziphathwayo zifuna ukhathalelo olufanelekileyo kunye nokulinganisa ngamaxesha:
I-Q1: Ngaba iimitha ze-pH eziphathekayo zilinganisa ubushushu ngokuzenzekelayo?
Ewe, iimodeli ezininzi zibonisa imbuyekezo yobushushu obuzenzekelayo ukulungisa ufundo lwe-pH ngokusekwe kwisampulu yobushushu.
I-Q2: Zihlala ixesha elingakanani iimitha ze-pH eziphathekayo?
Ngononophelo olufanelekileyo, iimitha ze-pH eziphathwayo ezikumgangatho ophezulu zingahlala iminyaka emi-3-5, ngelixa i-electrodes inokufuna ukutshintshwa rhoqo emva kweminyaka eyi-1-2.
Q3: Ngaba iimitha ze-pH eziphathwayo zifanelekile kuvavanyo lomhlaba?
Ewe, ngovavanyo olufanelekileyo lomhlaba, iimitha ze-pH eziphathwayo zinokubonelela ngemilinganiselo echanekileyo yobumuncu bomhlaba kulimo nohlalutyo lokusingqongileyo.
I-Q4: Kufuneka ndilinganise kangaphi imitha yam ephathekayo ye-pH?
Ukulinganisa kuyacetyiswa phambi komlinganiselo ngamnye obalulekileyo okanye ubuncinane kanye ngeveki kuvavanyo lwesiqhelo ukugcina ukuchaneka.
Iimitha ze-pH eziphathwayo zizixhobo eziyimfuneko kwiingcali ezifuna imilinganiselo ye-pH ekhawulezayo, echanekileyo, nethembekileyo kuzo zombini iilabhoratri kunye noseto lwentsimi. Ngokuqonda indlela abasebenza ngayo, izibonelelo zabo, izicelo, kunye neemfuno zokugcinwa, abasebenzisi banokwandisa ukusebenza kakuhle kunye nokuqinisekisa iziphumo ezingaguqukiyo. Kwabo bafuna i-pH yeemitha eziphathwayo ezikumgangatho ophezulu,I-I-Shanghai DDK Scientific Instruments Co., Ltd.inikeza iimveliso ezithembekileyo ezilungiselelwe amashishini ahlukeneyo.Qhagamshelana nathinamhlanje ukufunda ngakumbi okanye ukucela ikowuti.
