Mchere wa Ammonium wa Quaternary wa Disinfectant

Mchere wa Quaternary ammonium (QAS) ndi mankhwala a cationic okhala ndi magulu a alkyl mu unyolo wa C8–C18, omwe amasungunuka m'madzi ndipo angagwiritsidwe ntchito ngati mankhwala ophera tizilombo m'mafakitale opanga nsalu.

QAS ndi mankhwala a ionic omwe ali ndi quaternary ammonium nitrogen, magulu anayi a alkyl kapena aryl olumikizidwa ku nayitrogeni iyi, ndi anionic ion monga chloride kapena bromide. Pakati pa magulu anayi a alkyl, limodzi ndi gulu lalitali la alkyl chain lomwe lili ndi ma hydrocarbons opitilira asanu ndi atatu ndipo limagwiranso ntchito ngati gulu la hydrophobic. Magulu a hydrophobic pa QAS nthawi zambiri amakhudza ntchito zawo zotsutsana ndi maantibayotiki (Tiller et al., 2001; Zhao ndi Sun, 2007). Ndi hydrophobic yolimba, ntchito zamphamvu kwambiri zotsutsana ndi maantibayotiki zomwe QAS ili nazo (Zhao ndi Sun, 2008) (Chithunzi 16.1 ndi Table 16.1). Ma compounds ambiri a QAS ali ndi ntchito za surfactant. QAS ndi biocides yothandiza ikagwiritsidwa ntchito m'madzi komanso ngati mankhwala ophera tizilombo toyambitsa matenda. Pamene QAS yalumikizidwa ndi mankhwala kumalo a ulusi ntchito zawo zimatha kulepheretsedwa kutengera momwe zalumikizirana komanso kapangidwe komaliza ka QAS pamalo. QAS yophatikizidwa m'ma ulusi imatha kupereka ntchito zowononga majeremusi mwa kuwatulutsa pang'onopang'ono kuchokera pamwamba pa ulusi panthawi yogwiritsidwa ntchito, zomwe zingapereke ntchito zomwe zidapangidwira.