Nigute ushobora kugerageza kongeramo ibintu bidafite ingufu i

Nigute ushobora kugerageza kongeramo ibintu bidakoreshwa mubikoresho byo gutunganya ACR ：

Uburyo bwo kumenya Ca2 +:

Ibikoresho byubushakashatsi hamwe na reagent: inzoga; Icupa rifite ishusho; Umuyoboro; burette; Itanura ry'amashanyarazi; Ethanol; Acide Hydrochloric, NH3-NH4Cl igisubizo cya buffer, icyerekezo cya calcium, 0.02mol / L EDTA igisubizo gisanzwe.

Intambwe yikizamini:

1. Gupima neza umubare munini wintangarugero yo gutunganya ACR (neza kugeza 0.0001g) hanyuma ubishyire muri beaker. Wandike etanol ya anhydrous, hanyuma ushyiremo aside irenga 1: 1 hydrochloric hanyuma uyishyushya ku itanura ryamashanyarazi kugirango wongere rwose ion ya calcium na aside hydrochloric;

2. Karaba n'amazi hanyuma uyungurure unyuze muri feri kugirango ubone amazi meza;

3. Hindura agaciro ka pH kurenza 12 hamwe nigisubizo cya buffer ya NH3-NH4Cl, ongeramo urugero rukwiye rwerekana calcium, hanyuma utange titre hamwe na 0.02mol / L EDTA igisubizo gisanzwe. Iherezo ni igihe ibara rihinduka kuva umutuku wijimye ugana ubururu bwera;

4. Gukora ubushakashatsi busa icyarimwe;

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

V - Ingano (mL) yumuti wa EDTA ikoreshwa mugihe ugerageza ingero zifasha gutunganya ACR.

V # - Umubare wibisubizo byakoreshejwe mugihe cyubusa

M - Gupima misa (g) yicyitegererezo cyimfashanyo yo gutunganya ACR.

Uburyo bwo gutwika gupima ibintu kama:

Ibikoresho byubushakashatsi: impirimbanyi zisesenguye, itanura rya muffle.

Intambwe yikizamini: Fata 0.5,1.0g ACR yintangarugero yubufasha (gutunganya neza kugeza 0.001g), ubishyire mu itanura rya 950 rihoraho ryubushyuhe bwamasaha 1, ukonje, kandi upime kugirango ubare ibisigazwa byasigaye. Niba ibintu bidakoreshwa byongewe kumfashanyo yo gutunganya ACR, hazasigara byinshi.