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Buffer imhinduro inogona kuramba pH shanduko kana huwandu hushoma hweasidhi kana alkali nemvura zvawedzerwa.Iyo pH buffer system inoita basa rakakosha mukuchengetedza yakajairika pH kukosha kwezvipenyu uye yakajairika physiological nharaunda.Masero mazhinji anogona kungoshanda mune yakatetepa pH renji.Inoda kuve nebuffer system yekuramba iyo pH shanduko inoitika panguva yemetabolism.Kune matatu makuru pH buffer masisitimu mumutumbi, iwo mapuroteni uye bicarbonate buffer masisitimu.Huwandu hwega yega buffer system Iyo yakasiyana mumhando dzakasiyana dzemasero uye nhengo.

The buffering effect yebuffer solution inoumbwa neasidi isina simba HA uye munyu wayo NaA paasidhi imhaka yekuvapo kwehuwandu hwakakwana hwealkali A- mumushonga.Kana imwe chiyero cheasidhi yakasimba ichiwedzerwa kune iyi mhinduro, H ions inonyanya kudyiwa neA-ion:

Naizvozvo, iyo pH kukosha kwemhinduro inenge isingachinji;kana imwe chiyero chehwaro hwakasimba ichiwedzerwa, iyo isina simba acid HA mumushonga inodya maOH-ion uye inotadzisa shanduko yepH.

Wedzera hushoma hweasidhi yakasimba kana hwaro hwakasimba kune iyo buffer mhinduro, iyo pH kukosha kwemhinduro haizochinji zvakanyanya, asi kana huwandu hweasidhi kana alkali hwawedzerwa, iyo buffer mhinduro inorasikirwa neiyo buffering.Izvi zvinoratidza kuti buffer yayo ine imwe muganhu.

Iyo buffering capacity yebuffer solution ine hukama nekusangana kwezvikamu zvinoumba mhinduro yebuffer.Mushonga webuffer wakaumbwa ne 0.1mol · L-1HAc uye 0.1mol · L-1NaAc ine buffering capacity yakakura kudarika buffer solution ye0.01mol · L-1HAc uye 0.01mol · L-1NaAc.Izvi zvinogona kusimbiswa nekuverenga.Zvisinei, kusungirirwa kwezvikamu zvemushonga webuffer hakufaniri kunge kwakakura, kana zvisina kudaro, kupindirana pakati peion hakugoni kuregererwa.