PH ma electrode anosiyana munzira dzakasiyana siyana;kubva patip shape, junction, material and fill.Musiyano wakakosha ndewekuti electrode ine imwe chete kana kaviri junction.
pH electrodes inoshanda sei?
Musanganiswa pH maelectrode anoshanda nekuva nekunzwa hafu-sero (AgCl yakavharwa sirivheri waya) uye referensi hafu-sero (Ag/AgCl referensi electrode waya), izvi zvikamu zviviri zvinofanirwa kubatanidzwa pamwechete kupedzisa dunhu kuitira kuti mita iwane. pH kuverenga.Ipo hafu yesero inonzwa shanduko mupH yemhinduro, iyo hafu yereferensi sero ndiyo yakagadzikana yereferensi inogona.Electrodes inogona kuva mvura kana gel yakazadzwa.Iyo liquid junction electrode inogadzira musanganiswa nefirimu rakatetepa rekuzadza mhinduro pamuromo weprobe.Ivo kazhinji vane pombi basa rekubvumidza iwe kugadzira nyowani nyowani yekushandisa kwese.Ivo vanoda kuzadzazve nguva nenguva asi vanopa kuita kwakanyanya kuwedzera hupenyu hwese, huchokwadi uye nekumhanya kwekupindura.Kana yakachengetedzwa mvura inosanganiswa ichava nehupenyu husingaperi hunobudirira.Mamwe maelectrode anoshandisa gel electrolyte iyo isingade kuiswa kumusoro nemushandisi.Izvi zvinovaita kuti ive sarudzo yemahara asi zvinoganhurira hupenyu hwe electrode kusvika ringangoita gore rimwe kana ikachengetwa nemazvo.
Kaviri Junction - aya pH maelectrode ane imwezve bhiriji remunyu kudzivirira kuita pakati pe electrode kuzadza mhinduro uye sampuro yako iyo inogona kukonzeresa kukuvadzwa kwe electrode junction.Vanosungirwa kuyedza sampuli dzine mapuroteni, heavy metal kana sulphides
Single Junction - idzi ndedzechinangwa chemazuva ese manyorerwo emasample asingavharise makutano.
Ndeipi mhando yepH electrode yandinofanira kushandisa?
Kana sample ine mapuroteni, sulphites, heavy metals kana TRIS buffers the electrolyte can react with the sample yogadzira mvura yakasimba inovharira porous junction ye electrode yomisa kushanda.Ichi ndicho chimwe chezvikonzero zvinowanzoitika zve "dead electrode" yatinoona nguva nenguva.
Kune iwo masampuli iwe unoda kaviri junction - izvi zvinopa imwe dziviriro pane izvi zvichiitika, saka iwe unowana hupenyu huri nani kubva mupH electrode.
Nguva yekutumira: May-19-2021
