Preconcentration and separation of trace Pd(II) and Pt(IV) with silica gel bonded by aminopropyl-benzoylazo-4-(2-pyridyl-azo)-resorcinol-中国期刊网

摘要 ThispaperreportsasimpleandhighlyselectivemethodforpreconcentratingandseparatingoftracePd(II)andPt(IV)withsilicagelbondedbyaminopropyl-benzoylazo-4-(2-pyridy-lazo)-resorcinol(ABPR-SG).ABPR-SGisstableinsolutionfrom6mol/LHCltopH7.0andincommonorganicsolvents.ThemaximumadsorptivecapacityofPd(n)onABPR-SGis362μmol/g.AfterpreconcentrationandseparationbyusingABPR-SGcolumn,Pd(II)andPt(IV)ofμg/Llevelinartificialwatersamplescanbemeasuredreliablybycommonspedrophotometry.ThemaximumconcentrationfactorsofPd(II)andPt(IV)onABPR-SGcolumnare143and125respectively.ThechromatographiccolumnpackedwithABPR-SGcanbereused.Themethodissimpleandefficient.

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Preconcentration and separation of trace Pd(II) and Pt(IV) with silica gel bonded by aminopropyl-benzoylazo-4-(2-pyridyl-azo)-resorcinol

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Preconcentration and separation of trace Pd(II) and Pt(IV) with silica gel bonded by aminopropyl-benzoylazo-4-(2-pyridyl-azo)-resorcinol

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