Ion selective electrode i electrochemical sensor ine potential yakaenderana ne logarithm ye ion activity mune imwe solution. Imhando ye electrochemical sensor inoshandisa membrane potential kuona ion activity kana concentration mu solution. Ndeye membrane electrode,ane Chikamu chikuru ndicho chinonzwa membrane ye electrode. Nzira ye ion selective electrode ibazi rekuongorora potentiometric. Inowanzo shandiswa mu direct potentiometric method uye potentiometric titration. Iyo utility model inoratidzwa mu w yayonzvimbo yekushandisa ideUyezve, it anogona kuyera kuwanda kwemaion chaiwo mumushonga. Pamusoro pezvo, init haina kukanganiswa ne iyoruvara uye kusviba nezvimwe zvinhu zve chinhu chinodzora kupisa.
Maitiro ekuyera ion selective electrode
Kana maion akayerwa ari mu electrode solution akabatana ne electrode, kufamba kwemaion kunoitika mu aquifer ye ion selective electrode membrane matrix. Pane mukana wekuchinja kwechaji yemaion anotama, izvo zvinoshandura mukana uri pakati pe membrane surfaces. Saka, musiyano uripo pakati pe electrode yekuyera ne reference electrode. Zvakanakira kuti musiyano uripo pakati pe ion selective electrode nemaion achayerwa mu solution utevedzere Nernst equation, iyo iri
E=E0+ log10a(x)
E: Kuyerwa kwesimba
E0: Simba remagetsi rakajairwa (rinogara riripo)
R: Gasi rinogara riripo
T: Tembiricha
Z: Ionic valence
F: Faraday constant
a(x): basa reion
Zvinogona kuonekwa kuti simba rema electrode rakayerwa rinoenderana ne logarithm yebasa re "X" ions. Kana basa rema electrode richiramba riripo, simba rema electrode rinoenderanawo ne logarithm yehuwandu hwema ion (C). Nenzira iyi, basa kana huwandu hwema ion mu solution hunogona kuwanikwa.
Nguva yekutumira: Ndira-30-2023