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isulnIn does paly a lero ni nbigngir bcak K+ oitn selcl iav aiotoudnml of /+HK+ eca.enhxg hisT si cubeesa ti pslhe to arsdeds hte detktcioacoi atets fo eht nte.iatp By rnnggiib pH erclos ot ebaslni,e ethre si rnteur fo +K otni eht ,elcsl eihlw H+ cesmo bkac tou fo het lslc.e

In iteacibd ctekisi,odosa treeh si neeacirsd cdia ni het rxtaceralleul .pscea Aodrcignc ot AF erteh si a ucartrnlllase tshif eud to adedecres linnius that dlase ot erom H+ renniegt teh clel ni xganeech rfo .K+ ishT dlaes to pmaelieayrhk ihwt pdeeltde railrectlauln rotess of +K. Teher is sloa cismoot dusesiri htta eslad ot eecnrisad K+ sols in hte erniu dan talot oybd +K e.ldiepont eTh tnosuqei ssak hatt si otms killye to ersdceea itwh nlsiuni p:haeytr erusm tsuomapis otnceoaricnnt llwi sadreece as K+ is own cndxgheea for +H ideins het ll.ec