title: Determination of manganese in urine and whole blood samples by electrothermal atomic absorption spectrometry: comparison of chemical modifiers.
abstract: In this work, methodologies to determine manganese (Mn) in urine and whole blood by electrothermal atomic absorption spectrometry were developed. The use of Ru, Rh, and Zr as permanent modifiers, Pd as a modifier in solution, and the condition without modifier were investigated for the direct determination of Mn in urine and whole blood samples. The best results for Mn in urine and in whole blood were obtained without modifier use. The analytical characteristic, such as accuracy, precision and limit of detection of the proposed methodology were adequate.
authors.affiliation: Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
authors.forename: Frederico Garcia
authors.initials: FG
authors.lastname: Pinto
authors.forename: Ulisses Villela
authors.initials: UV
authors.lastname: Rey
authors.forename: Eduardo Freitas
authors.initials: EF
authors.lastname: Fernandes
authors.forename: Josianne Nicácio
authors.initials: JN
authors.lastname: Silveira
authors.forename: Leiliane
authors.initials: L
authors.lastname: Amorim
authors.forename: José Bento Borba
authors.initials: JB
authors.lastname: da Silva
mesh_terms: D008345:Manganese / Q000097:blood* / Q000652:urine*; D010165:Palladium; D012238:Rhodium; D012428:Ruthenium; D013054:Spectrophotometry, Atomic / Q000379:methods* / Q000592:standards; D015040:Zirconium
chemical_list: D008345:Manganese; D010165:Palladium; D012428:Ruthenium; D015040:Zirconium; D012238:Rhodium