Hanyar ganowa don Ca2+:
Na'urorin gwaji da reagents: beakers; Filashin kwandon shara; Funnel; Burette; Wutar lantarki; Anhydrous ethanol; Hydrochloric acid, maganin buffer NH3-NH4Cl, alamar calcium, 0.02mol/LEDTA daidaitaccen bayani.
Matakan Gwaji:
1. Yi daidai auna wani adadin samfurin kayan aikin sarrafa ACR (daidai zuwa 0.0001g) kuma sanya shi a cikin beaker. Jika shi da ethanol mai anhydrous, sa'an nan kuma ƙara wani wuce haddi na 1: 1 hydrochloric acid da kuma zafi shi a kan wutar lantarki don ba da damar calcium ions su yi cikakken amsa tare da hydrochloric acid;
2. A wanke da ruwa kuma tace da mazurari don samun ruwa mai tsabta;
3. Daidaita ƙimar pH don zama mafi girma fiye da 12 ta amfani da maganin buffer NH3-NH4Cl, ƙara adadin adadin mai nuna alamar calcium, da titrate tare da 0.02mol/LEDTA daidaitaccen bayani. Ƙarshen ƙarshen shine lokacin da launi ya canza daga ja zuwa shuɗi mai tsabta;
4. Gudanar da gwaji mara kyau lokaci guda;
5. Yi lissafin C # a2+=0.02 $(V-V0) $0.04004M $%&&
V - Volume na EDTA bayani cinye lokacin da gwajin ACR sarrafa samfurori samfurori (mL).
V # - Girman maganin da ake cinyewa yayin gwajin da ba komai
M - Auna yawan samfurin taimakon sarrafa ACR (g).
Hanyar ƙonawa don auna abubuwan inorganic:
Kayan aikin gwaji: ma'auni na nazari, murhun murfi.
Matakan gwaji: Ɗauki 0.5,1.0g ACR samfurori na taimakon kayan aiki (daidai zuwa 0.001g), sanya su a cikin tanderun zafin jiki na 950 akai-akai kuma ku ƙone don 1 hour, sannan sanyi da auna don lissafin sauran kayan da aka ƙone. Idan an ƙara abubuwan da ba a haɗa su zuwa samfurin kayan aikin sarrafa ACR ba, za a sami sauran sauran.
Hanyar narkewa:
1. Na'urorin gwaji da ma'aunin bincike na reagent; 25 ml na ruwa mai tsabta; Trichloromethane.
Mataki na 2: Dangane da hanyar gwajin danko na ciki na ACR, auna 75mg na samfurin kuma sanya shi a cikin faifan ƙarar 25mL. Add trichloromethane sauran ƙarfi. Idan akwai turbidity ko bayyane haske
Lokacin aikawa: Mayu-27-2024
