Njira Yowunika Zomwe zili Palladium Mu Palladium Catalysts

1. Ndemanga
Kulemeretsa palladium wa palladium chothandizira ndi pyrometallurgy, ndiye kupasuka palladium mu admixture asidi, madzi kusanthula ndi AAS.
2. Reagent
2.1 Hydrochloric acid(ρ1.19g/ml)
2.2 nitric acid(ρ1.42g/ml)
2.3 Admixture acid (Hydrochloric acid ndi nitric acid wothira, voliyumu monga 3: 1)
2.4 Perchloric acid (AR)
2.5 sodium Chloride solution (50g/L)
2.6 Standard njira ya palladium:
Kulemera 0.1g palladium ( Tingafinye 0.0001g), amene kwathunthu kusungunuka mu 40mL admixture asidi ndi kutentha kochepa.Onjezani 5mL sodium chloride yankho mu njira yakale, iwunikeni nthunzi kuti iume, kenaka onjezerani 3mL hydrochloric acid, iwunikeni kuti iume, bwerezani masitepe awiriwo katatu.Onjezani 10mL hydrochloric acid, sinthani mu botolo lamphamvu, tsitsani mpaka masikelo, sakanizani mofanana, zomwe zili palladium mu yankho ndi 1.0mg/mL.
3. Zida
3.1 AAS, Flame, mtundu wa gasi: acetylene-air.Zosinthazo zimayikidwa molingana ndi zolemba za cookbook.
3.2 Zida za labu wamba.
4. Kutaya zitsanzo
Ikani 0.15g (ndendende ku 0.0001g) ya zitsanzo zotayidwa ndi pyrometallurgy mu beaker 100mL, pangani zitsanzo ziwiri zofanana.Onjezani 15mL admixture acid, pakadali pano onjezerani 5mL perchloric acid, isungunuke ndi kutentha, iwunikeni nthunzi kuti iume, onjezerani 5mL sodium chloride solution, kenaka onjezerani 3mL hydrochloric acid, iwunikeni kuti iume, bwerezani masitepe awiri katatu.Onjezani 10mL hydrochloric acid, sinthani mu botolo lamphamvu, tsitsani mpaka masikelo, sakanizani mofanana, zomwe zili palladium mu njira yachitsanzo ndi 1.5mg/mL, sinthani 10mL yachitsanzo mu botolo la 100mL, kuwonjezera 3mL hydrochloric acid, kuchepetsa. kuti sikelo, zili palladium mu njira chitsanzo pafupifupi 0.15mg/mL.
5. Kudziwa zomwe zili
5.1 Ikani njira yokhazikika yopangidwa mu AAS ndikupanga njira yokhazikika (yokhazikika 2,4,6,8,10ppm), determing absorbency of the sample, kenaka muwerenge kuchuluka kwa zitsanzo molingana ndi curve stanadard.