Determination of manganese in urine and whole blood samples by electrothermal atomic absorption spectrometry: comparison of chemical modifiers.
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.
Pinto
Frederico Garcia
FG
Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
Rey
Ulisses Villela
UV
Fernandes
Eduardo Freitas
EF
Silveira
Josianne Nicácio
JN
Amorim
Leiliane
L
da Silva
José Bento Borba
JB
D008345:Manganese / Q000097:blood* / Q000652:urine*; D010165:Palladium; D012238:Rhodium; D012428:Ruthenium; D013054:Spectrophotometry, Atomic / Q000379:methods* / Q000592:standards; D015040:Zirconium
D008345:Manganese; D010165:Palladium; D012428:Ruthenium; D015040:Zirconium; D012238:Rhodium