Ụzọ nke nyochaa ọdịnaya palladium na palladium catalysts

1. Abstract
Ọganihu palladium nke palladium catalysts site na pyrometallurgy, wee gbazee palladium na admixture acid, AAS na-enyocha mmiri mmiri.
2. Reagent
2.1 Hydrochloric acid (ρ1.19g/ml)
2.2 nitric acid (ρ1.42g / ml)
2.3 Admixture acid (Hydrochloric acid na nitric acid agwakọtara, olu dị ka 3:1)
2.4 Perchloric acid (AR)
2.5 sodium chloride ngwọta (50g / l)
2.6 Ọkọlọtọ ngwọta nke palladium:
Were 0.1g palladium (wepụtara na 0.0001g), nke agbazere kpamkpam na 40mL admixture acid site na obere okpomọkụ.Tinye sodium chloride ngwọta 5mL n'ime ihe ngwọta mbụ ahụ, kpochapu ya ka ọ fọrọ nke nta ka ọ kpọọ nkụ, wee tinye 3mL hydrochloric acid, kpochapu ya ka ọ fọrọ nke nta ka ọ kpọọ nkụ, megharịa nzọụkwụ abụọ ahụ ugboro atọ.Tinye 10mL hydrochloric acid, gbanwee n'ime karama ikike, gbanye ya na ọnụ ọgụgụ, jikọta ya n'otu n'otu, ọdịnaya palladium na ngwọta bụ 1.0mg / ml.
3. Ngwa
3.1 AAS, ire ọkụ, ụdị gas: acetylene-ikuku.A na-edobe parampat dịka ndekọ nke akwụkwọ esi nri.
3.2 Ngwa ụlọ nyocha nkịtị.
4. Ntufu ihe atụ
Ebe 0.15g (kpọmkwem na 0.0001g) nke ihe atụ nke pyrometallurgy tụfuru na 100mL beaker, mee ihe atụ abụọ yiri ya.Tinye 15mL admixture acid, ka ọ dị ugbu a, tinye 5mL perchloric acid, kpochapu ya site na okpomọkụ, kpofuo ya ka ọ fọrọ nke nta ka ọ kpọọ nkụ, tinye 5mL sodium chloride solution, tinyezie 3mL hydrochloric acid, kpochapu ya ka ọ fọrọ nke nta ka ọ kpọọ nkụ, megharịa nzọụkwụ abụọ ahụ ugboro atọ.Tinye 10mL hydrochloric acid, gbanwee n'ime karama ikike, itughari na nha, gwakọta ya n'otu n'otu, ọdịnaya palladium na ngwọta ihe atụ bụ 1.5mg / ml, gbanwee 10mL nke ihe nlele n'ime karama ikike 100mL, tinye 3mL hydrochloric acid, itughari. N'ịdị elu, ọdịnaya nke palladium na ngwọta nlele ihe dị ka 0.15mg/mL.
5. Na-ekpebi ọdịnaya
5.1 Tinye ihe ngwọta edozi edozi n'ime AAS ma mee ka usoro ọkọlọtọ (ọkọlọtọ ngwọta 2,4,6,8,10ppm), chọpụta absorbency nke sample, wee gbakọọ mkpokọta nke sample dị ka ọkọlọtọ usoro.