title: PIXE as a complement to ICP-OES trace metal analysis in Sudanese medicinal plants.
abstract: This paper compares trace element concentrations (Ca, K, Sr, Fe, Mn, Zn, Ni, Cu, Co and Cr) in 27 Sudanese medical plants determined in parallel by PIXE and ICP-OES to get information on which technique is preferable at different matrices and element concentrations. PIXE correlates well to ICP-OES for Sr, Mn, Ca, K, Zn and Fe determinations. ICP-OES seems to be the superior technique over PIXE when measuring low concentrated elements (chromium, cobalt, nickel and copper) in the medicinal plants.
authors.affiliation: Sudan Atomic Energy Commission, Sudan. Electronic address: ammar_mubark@yahoo.com.
authors.forename: Ammar
authors.initials: A
authors.lastname: Mubark Ebrahim
authors.affiliation: Sudan Atomic Energy Commission, Sudan.
authors.forename: M A
authors.initials: MA
authors.lastname: Etayeb
authors.affiliation: Medicinal and Aromatic Plants Research Institute - National center for research, Sudan.
authors.forename: H
authors.initials: H
authors.lastname: Khalid
authors.affiliation: Lebanese Atomic Energy Autherity, Lebanon.
authors.forename: Manale
authors.initials: M
authors.lastname: Noun
authors.affiliation: Lebanese Atomic Energy Autherity, Lebanon.
authors.forename: M
authors.initials: M
authors.lastname: Roumie
authors.affiliation: Helmholtz Center Munich - German Research Center for Environmental Health, Research Unit Analytical BioGeoChemistry, Neuherberg, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Michalke
mesh_terms: D008670:Metals / Q000032:analysis* / Q000737:chemistry; D008832:Microchemistry / Q000379:methods; D010946:Plants, Medicinal / Q000737:chemistry*; D013052:Spectrometry, X-Ray Emission / Q000379:methods*; D013054:Spectrophotometry, Atomic / Q000379:methods*; D013397:Sudan; D014131:Trace Elements / Q000032:analysis* / Q000737:chemistry
chemical_list: D008670:Metals; D014131:Trace Elements
keywords: ICP-OES; Medicinal plants; PIXE; Trace elements