1. Papiso
Ntlafatso ea palladium ea li-catalysts tsa palladium ka pyrometallurgy, ebe o qhala palladium ka acid e kopaneng, mokelikeli o hlahlojoa ke AAS.
2. Reagent
2.1 Hydrochloric acid(ρ1.19g/ml)
2.2 Nitric acid(ρ1.42g/ml)
2.3 Admixture acid (Hydrochloric acid le nitric acid e tsoakiloeng, volume as 3:1)
2.4 Perchloric acid (AR)
2.5 Sodium Chloride (50g/L)
2.6 Tharollo e tloaelehileng ea palladium:
Beha 0.1g palladium(e ntšitsoeng ho 0.0001g), e qhibilihang ka ho feletseng ka 40mL ea motsoako oa acid ka mocheso o tlaase.Eketsa 5mL sodium chloride solution ka har'a tharollo ea pele, e mouoane hoo e batlang e omella, ebe u eketsa 3mL hydrochloric acid, mouoane hoo e batlang e omme, pheta mehato e 'meli ka makhetlo a mararo.Eketsa 10mL hydrochloric acid, fetola botlolo ea bokhoni, hlapolla ho ea tekanyo, kopanya ka mokhoa o ts'oanang, litaba tsa palladium ka tharollo ke 1.0mg / mL.
3. Lisebelisoa
3.1 AAS, Flame, mofuta oa khase: acetylene-moea.Mekhahlelo e behiloe ho latela rekoto ea cookbook.
3.2 Lisebelisoa tse tloaelehileng tsa lab.
4. Ho lahla mehlala
Beha 0.15g (hantle ho 0.0001g) ea sampole e lahliloeng ke pyrometallurgy ka beaker ea 100mL, etsa lisampole tse peli tse tšoanang.Eketsa 15mL admixture acid, khabareng eketsa 5mL perchloric acid, e tlose ka mocheso, e etsa mouoane hoo e batlang e omella, eketsa 5mL sodium chloride solution, ebe u eketsa 3mL hydrochloric acid, mouoane hoo e batlang e omme, pheta mehato e 'meli ka makhetlo a mararo.Eketsa 10mL hydrochloric acid, fetola botlolo ea botlolo, hlapolla ho sekaleng, kopanya ka mokhoa o ts'oanang, litaba tsa palladium ka har'a tharollo ea sampole hoo e batlang e le 1.5mg/mL, fetola 10mL ea tharollo ea sampole ka botlolong ea 100mL, eketsa 3mL hydrochloric acid, hlapolla. ho lekanya, litaba tsa palladium ka tharollo ea sampole ke 0.15mg/mL.
5. Ho tseba litaba
5.1 Sebelisa tharollo e tloaelehileng e entsoeng ho AAS 'me u etse curve e tloaelehileng (tharollo e tloaelehileng 2,4,6,8,10ppm), determing absorbency ea sampuli, ebe u bala palo ea sampuli ho ea ka sekhahla sa stanadard.
Nako ea poso: Apr-30-2022