Ion yatoranije electrode ni sensor ya electrochemic sensor ifite ubushobozi buringaniye na logarithm yibikorwa bya ion mugisubizo runaka.Nubwoko bwa sensororo ya electrochemicique ikoresha membrane ubushobozi bwo kumenya ibikorwa bya ion cyangwa kwibanda mubisubizo.Nibya membrane electrode,ninde ibyingenzi ni ibyumviro bya electrode.Ion ihitamo uburyo bwa electrode nishami ryisesengura rya potentiometric.Mubisanzwe bikoreshwa muburyo butaziguye bwa potentiometric na titentiometric titre.Icyitegererezo cyingirakamaro kirangwa muri wicyiciro cyo gusaba.Byongeye kandi, it irashobora gupima kwibanda kuri ion zihariye mugisubizo. Byongeye, it ntabwo byatewe na iibara na akajagari n'ibindi bintu bya reagent.
Igipimo cyo gupima ion yatoranije electrode
Iyo ion zapimwe mubisubizo bya electrode zihura na electrode, kwimuka kwa ion bibaho mumazi ya ion yatoranije electrode membrane matrix.Hariho ubushobozi bwo guhindura amafaranga yimuka ion, ihindura ubushobozi hagati yimiterere ya membrane.Rero, itandukaniro rishobora kubaho hagati ya electrode yo gupima na electrode yerekana.Nibyiza ko itandukaniro rishobora kuvuka hagati ya ion yatoranije electrode na ion zigomba gupimwa mugisubizo zigomba kubahiriza ikigereranyo cya Nernst, aricyo
E = E0 + log10a (x)
E: Ibipimo byapimwe
E0: Ubushobozi bwa electrode isanzwe (ihoraho)
R: Gazi ihoraho
T: Ubushyuhe
Z: Agaciro Ionic
F: Faraday ihoraho
a (x): ibikorwa bya ion
Birashobora kugaragara ko ubushobozi bwa electrode yapimwe ihwanye na logarithm yibikorwa bya "X" ion.Iyo coefficient yibikorwa ikomeje guhoraho, ubushobozi bwa electrode nabwo buragereranywa na logarithm yibitekerezo bya ion (C).Muri ubu buryo, ibikorwa cyangwa kwibanda kuri ion mubisubizo birashobora kuboneka.
Igihe cyo kohereza: Mutarama-30-2023