Analytical Aspects of the Determination of Chromium by Graphite Furnace A.A.S.

Schoor, O. Van; Deelstra, H.

doi:10.1002/bscb.19860950511

Cited by 5 publications

References 15 publications

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Influence of Several Factors on the Determination of Manganese Using Electrothermal Atomic Absorption Spectrometry

Stobbaerts

Deelstra

1989

Bulletin des Soc Chimique

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The influence of instrumental parameters on the determination of Mn using EAAS is investigated and the interference of several acids, cations and anions determined. When NaCl or KCI is present an interference sup ressor, such as L-ascorbic acid, has to be added. The contamination resulting from dust particles in the kborato or from a mixer is found to be negligible. Using NBS sam les several destruction techniques are investigged and comparison is made with results obtained by FAA$? INTRODUCTIONAlthough manganese has been known for a long time to be a constituent of animal tissues, it was first shown to be an essential trace element for animals in 1931 when Kemmerer and coworkers (1) and Orent and McCollum (2) demonstrated poor growth in mice and abnormal reproduction in rat fed diet without manganese.Manganese is widely distributed and its concentration is in most cases not extremely low. However, precise biochemical roles for manganese are not clear. Therefore, an accurate and sensitive method for the determination of this element in foods, diets and body fluids is necessary.Electrothermal atomic absorption spectrometry (EMS) remains perhaps one of the most used techniques in biomedical research. Low detection limits can be obtained, but important matrix interferences can be significant for this method (3).The purpose of this study is to evaluate the instrumental and the matrix interferences on the determination of manganese by EAAS in foods and biochemical samples and to compare these results with literature values.

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