Usoro nchọpụta maka Ca2+:
Ngwa nnwale na reagents: beakers; Ihe mkpuchi conical; Ọkụ; Burette; Igwe ọkụ eletrik; ethanol na-egbu egbu; Hydrochloric acid, NH3-NH4Cl ngwọta ngwọta, calcium egosi, 0.02mol/LEDTA ọkọlọtọ ngwọta.
Nnwale nzọụkwụ:
1. Jiri nlezianya tụọ ụfọdụ ihe enyemaka nhazi ACR (nke ruru 0.0001g) ma tinye ya na beaker. Weta ya na ethanol anhydrous, wee tinye 1: 1 hydrochloric acid gabiga ókè ma kpoo ya na ọkụ eletrik ka ion calcium na-emeghachi omume n'ụzọ zuru ezu na hydrochloric acid;
2. Jiri mmiri na-asacha ma jiri oghere mee ihe iji nweta mmiri mmiri doro anya;
3. Gbanwee uru pH ka ọ dị ukwuu karịa 12 site na iji NH3-NH4Cl ngwọta, gbakwunye ego kwesịrị ekwesị nke ihe ngosi calcium, na titrate na ngwọta ọkọlọtọ 0.02mol/LEDTA. Ebe njedebe bụ mgbe agba na-agbanwe site na-acha odo odo na-acha anụnụ anụnụ na-acha anụnụ anụnụ;
4. Mee ule efu n'otu oge;
5. Gbakọọ C # a2+=0.02 $(V-V0) $0.04004M $%&&
V - Olu nke ngwọta EDTA riri mgbe a na-anwale ihe enyemaka nhazi ACR (mL).
V # - Olu nke ngwọta riri n'oge ule efu
M — Tulee uka nke ACR nhazi enyemaka sample (g).
Usoro ọkụ maka ịlele ihe inorganic:
Ngwa nnwale: itule nyocha, ọkụ muffle.
Nnwale ule: Were 0.5,1.0g ACR nhazi ihe nlele enyemaka (nke ziri ezi na 0.001g), tinye ha n'ime ọkụ muffle okpomọkụ 950 mgbe niile ma gbaa ọkụ maka 1 hour, wee dị jụụ ma tụọ iji gbakọọ ihe ndị fọdụrụ n'ọkụ. Ọ bụrụ na agbakwunyere ihe ndị na-adịghị ahụkebe na ihe nlele nke ihe enyemaka nhazi ACR, a ga-enwekwu ihe fọdụrụnụ.
Usoro mgbaze:
1. Ngwa nnwale na nguzozi nyocha reagent; 25 ml nke mmiri ọkụ; Trichloromethane.
Kwụpụ 2: Dị ka usoro nnwale viscosity nke ACR si dị, tụọ 75mg nke nlele ma tinye ya na flask volumetric 25mL. Tinye ihe mgbaze trichloromethane. Ọ bụrụ na enwere turbidity ma ọ bụ ìhè a na-ahụ anya
Oge nzipu: Mee-27-2024
