Indlela yokubona ye-Ca2+:
Izixhobo zovavanyo kunye nee-reagents: iibeakers; I-conical flask; Ifaneli; Burette; Isithando somlilo sombane; I-ethanol engenamanzi; I-Hydrochloric acid, isisombululo se-NH3-NH4Cl se-buffer, isalathisi se-calcium, isisombululo esiqhelekileyo se-0.02mol / LEDTA.
Amanyathelo ovavanyo:
1. Ukulinganisa ngokuchanekileyo umlinganiselo othile wesampula yokuncedisa i-ACR (echanekileyo kwi-0.0001g) kwaye uyibeke kwi-beaker. Yimanzise nge-ethanol e-anhydrous, uze ungeze ukugqithisa kwe-1: i-1 i-hydrochloric acid kwaye uyitshise kwisithando sombane ukuze uvumele i-calcium ions ukuba iphendule ngokupheleleyo nge-hydrochloric acid;
2. Hlamba ngamanzi kunye nesihluzo ngefuneli ukuze ufumane ulwelo olucacileyo;
3. Lungisa ixabiso le-pH libe likhulu kune-12 usebenzisa i-NH3-NH4Cl isisombululo se-buffer, yongeza inani elifanelekileyo lesalathisi se-calcium, kunye ne-titrate kunye ne-0.02mol / LEDTA isisombululo esiqhelekileyo. Isiphelo kuxa umbala utshintsha ukusuka emfusa ebomvu ukuya eluhlaza okwesibhakabhaka;
4. Yenza uvavanyo olungenanto ngaxeshanye;
5. Bala C # a2+=0.02 $(V-V0) $0.04004M $%&&
V - Umthamo wesisombululo se-EDTA esisetyenzisiweyo xa kuhlolwa iisampuli ze-ACR processing aid (mL).
V # - Umthamo wesisombululo esisetyenzisiweyo ngexesha lovavanyo olungenanto
M - Ukulinganisa ubunzima besampulu yoncedo lwe-ACR (g).
Indlela yokutshisa yokulinganisa izinto ezingaphiliyo:
Izixhobo zovavanyo: ibhalansi yohlalutyo, i-muffle furnace.
Amanyathelo ovavanyo: Thatha i-0.5,1.0g ye-ACR iisampulu zokuncedisa ukusetyenzwa (zichanekile ukuya ku-0.001g), zibeke kwi-950 ye-furnace ye-muffle engaguqukiyo kwaye utshise iyure e-1, emva koko upholile kwaye ulinganise ukubala izinto eziseleyo ezitshisiweyo. Ukuba izinto ezingaphiliyo zongezwa kwisampulu yoncedo lwe-ACR, kuya kubakho intsalela engakumbi.
Indlela yokunyibilikisa:
1. Izixhobo zovavanyo kunye nebhalansi yohlalutyo lwe-reagent; I-25mL ye-volumetric flask; I-Trichloromethane.
Inyathelo lesi-2: Ngokwendlela yokuvavanya i-ACR intrinsic viscosity, linganisa i-75mg yesampuli kwaye uyibeke kwi-flask ye-volumetric ye-25mL. Yongeza isinyibilikisi setrichloromethane. Ukuba kukho i-turbidity okanye ukukhanya okubonakalayo
Ixesha lokuposa: May-27-2024
