1. Tuhinga
Ko te whakarangatira i te palladium o te palladium catalysts na te pyrometallurgy, ka tareka te palladium ki te waikawa whakauru, ka tātarihia te wai e te AAS.
2. Reagent
2.1 Waikawa pūmāota(ρ1.19g/ml)
2.2 Waikawa Nitric(ρ1.42g/ml)
2.3 Whakaranu waikawa (Wakawa maata me te waikawa Nitric i konatunatua, te rahi hei 3:1)
2.4 Te waikawa perchloric (AR)
2.5 Wairewa konutai Chloride (50g/L)
2.6 Wairewa paerewa o te palladium:
Paunatia te 0.1g palladium(tangohia ki te 0.0001g), ka rewa katoa ki te 40mL waikawa whakauru ma te wera iti.Tāpirihia te 5mL konutai pūhaumāota wairewa ki roto i te wairewa o mua, whakawātea kia tata maroke, kātahi ka tāpirihia te 3mL waikawa pūhaumāota, whakawātea kia tata maroke, kia toru ngā wā ka tuaruatia ngā kaupae e rua.Tāpirihia te 10mL waikawa pūmāota, huri ki te pounamu kaha, waimeha ki te tauine, uru riterite, ko te ihirangi o te palladium i roto i te otinga he 1.0mg/mL.
3. Taputapu
3.1 AAS, mura, momo hau: acetylene-air.Kua whakaritea nga tawhā ki te rekoata o te pukapuka tunu kai.
3.2 Nga taputapu taiwhanga noa.
4. Tauira tukunga
Whakanohoia te 0.15g(kia rite ki te 0.0001g) o te tauira ka tukuna e te pyrometallurgy ki te ipurau 100mL, kia rua nga tauira whakarara.Taapirihia te 15mL waikawa whakauru, i tenei wa ka tapirihia te 5mL waikawa perchloric, whakakorehia ma te wera, whakaetongia kia tata maroke, tāpirihia te 5mL konutai pūhaumāota wairewa, kātahi ka tāpirihia te 3mL waikawa pūhaumāota, whakawātea kia tata maroke, tuaruatia nga hikoinga kia toru nga wa.Tāpirihia te 10mL waikawa pūhaumāota, huri ki roto i te pounamu kaha, waimeha ki te tauine, uru riterite, ko te ihirangi o te palladium i roto i te tauira otinga he tata ki te 1.5mg/mL, huri 10mL o te tauira otinga ki te 100mL pounamu kaha, tāpiri 3mL waikawa pūhaumāota, waimeha ki te tauine, ko te ahua o te palladium i roto i te tauira otinga he 0.15mg/mL.
5. Te whakatau i te ihirangi
5.1 Hoatuhia te wairewa paerewa kua titoa ki roto i te AAS ka hanga i te anau paerewa(whakarewa paerewa 2,4,6,8,10ppm), ka whakatau i te mimiti o te tauira, katahi ka tatauhia te kukū o te tauira kia rite ki te anau paerewa.
Wā tuku: Apr-30-2022