Indlela yokuvavanya ukongezwa kwezinto ezingaphiliyo i

Indlela yokuvavanya ukongezwa kwezinto ezingaphiliyo kwizixhobo zokulungisa i-ACR:

Indlela yokubona i-Ca2+:

Izixhobo zovavanyo kunye nee-reagents: i-beaker; ibhotile emile okwekhowuni; i-Funnel; i-burette; i-Electric furnace; i-Anhydrous ethanol; i-Hydrochloric acid, isisombululo se-NH3-NH4Cl buffer, i-calcium indicator, isisombululo esiqhelekileyo se-0.02mol/L EDTA.

Amanyathelo ovavanyo:

1. Linganisa ngokuchanekileyo ubungakanani obuthile besampulu yoncedo lokucubungula i-ACR (ichaneke ukuya kwi-0.0001g) uze uyibeke kwisitya sokuhlambela. Yimanzise nge-ethanol engenamanzi, uze wongeze i-1:1 hydrochloric acid engaphezulu kwaye uyifudumeze kwi-oven yombane ukuze i-calcium ions isebenze ngokupheleleyo ne-hydrochloric acid;

2. Hlamba ngamanzi uze uhluze nge-funnel ukuze ufumane ulwelo olucacileyo;

3. Lungisa ixabiso le-pH libe ngaphezulu kwe-12 ngesisombululo se-NH3-NH4Cl se-buffer, yongeza isixa esifanelekileyo se-calcium indicator, kwaye udibanise isisombululo esiqhelekileyo se-0.02mol/L EDTA. Isiphelo kuxa umbala utshintsha ukusuka kubomvu obomvu ukuya kuluhlaza okwesibhakabhaka;

4. Yenza iimvavanyo ezingenanto ngaxeshanye;

5. Bala u-C # a2+=0.02 $(V-V0) $0.04004M $%&&

V – Umthamo (mL) wesisombululo se-EDTA esisetyenziswa xa kuvavanywa iisampulu zoncedo lokucubungula i-ACR.

V # – Umthamo wesisombululo esisetyenzisiweyo ngexesha lovavanyo olungenanto

M - Linganisa ubunzima (g) besampulu yoncedo lokucubungula i-ACR.

Indlela yokutshisa yokulinganisa izinto ezingaphiliyo:

Izixhobo zovavanyo: ibhalansi yohlalutyo, isithando somlilo esithambileyo.

Amanyathelo ovavanyo: Thatha iisampulu zoncedo lokucubungula i-ACR eziyi-0.5,1.0g (ezichanekileyo ukuya kwi-0.001g), uzibeke kwisithando somlilo esingenamaqondo obushushu angama-950 kangangeyure e-1, uzipholise, uze uzilinganisele ukuze ubale intsalela yokutsha eseleyo. Ukuba izinto ezingaphiliyo zongezwa kwiisampulu zoncedo lokucubungula i-ACR, kuya kubakho intsalela engaphezulu.