STUDY ON ENRICHMENT AND SEPARATION OF TRACE Pd(Ⅱ) WHITH SILICA GEL BONDED BY (BENZOYLAZO—ARSENAZO I)—AMINOPROPYL

(整期优先)网络出版时间:1992-02-12
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ThisPaperreportsenrichmentandsepqrationoftracePd(Ⅱ)withsilicagelbondedby(benzolyazo-arsenazoI)-aminopropyl(BAAI·SG).BAAI·SGisstableinsolutionbetween6mol/LHClandpH9.0.ThemaximumadsorptivecapacitiesofBAAI·SGandSGare52.7,23.5μmol/grespectively.AfterpreconcentrationthroughBAII·SGcolumn,Pd(Ⅱ)ofppblevelinartificialwatersamplescanbemeasuredbyspectrophotometry.