Metotia ole su'esu'eina o mea o lo'o i totonu o le Palladium Catalysts

1. Fa'amatalaga
Faʻatamaoaigaina palladium o palladium catalysts e pyrometallurgy, ona faʻamavaeina lea o le palladium i faʻafefiloi acid, o le vai e suʻeina e le AAS.
2. Reagent
2.1 Su'i suka(ρ1.19g/ml)
2.2 Nitric acid(ρ1.42g/ml)
2.3 Fa'afefiloi acid (Hydrochloric acid ma Nitric acid fefiloi, voluma pei ole 3:1)
2.4 A'uma Perchloric (AR)
2.5 Fofo ole Sodium Chloride (50g/L)
2.6 Fofo masani ole palladium:
Fua le palladium 0.1g (tuu i le 0.0001g), lea e solo uma i le 40mL admixture acid i le vevela maualalo.Faaopopo le 5mL sodium chloride solution i totonu o le vaifofo muamua, fa'a'a'a i le toeitiiti mago, ona fa'aopopo lea o le 3mL hydrochloric acid, fa'a'a'a i le toeitiiti mago, toe fai fa'atolu laasaga.Faaopopo le 10mL hydrochloric acid, sui i le fagu malosi, faʻafefe i le fua, faʻafefiloi tutusa, o le mea o loʻo i totonu o le palladium o le 1.0mg / mL.
3. Mea faigaluega
3.1 AAS, Mu, ituaiga kasa: acetylene-air.O fa'amaufa'ailoga e fa'atulaga e tusa ai ma fa'amaumauga a le tusi kuka.
3.2 Mea faigaluega masani ile fale su'esu'e.
4. Fa'ata'ita'iga lafoai
Tu'u le 0.15g(sa'o ile 0.0001g) ole fa'ata'ita'iga tu'u e le pyrometallurgy i totonu ole faguvai 100mL, fai fa'ata'ita'iga tutusa se lua.Faaopopo le 15mL admixture acid, i le taimi nei faʻaopopo le 5mL perchloric acid, faʻateʻaina i le vevela, faʻamalo i le toetoe lava a mago, faʻaopopo le 5mL sodium chloride solution, ona faʻaopopo lea o le 3mL hydrochloric acid, faʻamalo e toetoe lava a mago, toe fai laasaga e lua faatolu.Faaopopo le 10mL hydrochloric acid, sui i le fagu malosi, faʻafefe i le fua, faʻafefiloi tutusa, o le mea o loʻo i totonu o le palladium i totonu o le faʻataʻitaʻiga vaifofo e tusa ma le 1.5mg/mL, fesuiaʻi le 10mL o le faʻataʻitaʻiga fofo ile 100mL fagu malosi, faʻaopopo 3mL hydrochloric acid, faʻafefe. i le fua, o le mea o loʻo i totonu o le palladium i le faʻataʻitaʻiga fofo e tusa ma le 0.15mg/mL.
5. Fuafuaina o mea
5.1 Faʻaaoga le fofo masani faʻapipiʻi i totonu o le AAS ma fai le faʻataʻitaʻiga masani (fofo masani 2,4,6,8,10ppm), fuafua le faʻaogaina o le faʻataʻitaʻiga, ona fuafua lea o le faʻatonuga o le faʻataʻitaʻiga e tusa ai ma le standardd curve.