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Determination of selenium in infant foods using electrothermal atomic absorption spectrometry with direct slurry sample introduction

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Baralkiewicz D., El-Sayed U., Filipiak M., Gramowska H., Mleczek M.

Open Chemistry

2004

vol. 2

issue 2

334-346

Slurry sampling electrothermal atomic absorption (SS ETAAS) was applied to the development of a sensitive and precise method for selenium determination in infant foods without sample pretreatment. Suspensions prepared in a medium containing 0.1% Triton X-100, 0.5 or 5% v/v concentrated HNO3 were directly introduced into the furnace. The accuracy of the procedure was confirmed by analysis of a standard reference material and comparison with hydride generation atomic absorption spectrometric (HGAAS) procedure. The characteristic mass is 44 pg and detection limit 0.43 μg·l−1.

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1 Open Chemistry

1 2004

1 Baralkiewicz D.

1 El-Sayed U.

1 Filipiak M.

1 Gramowska H.

1 Mleczek M.

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Determination of selenium in infant foods using electrothermal atomic absorption spectrometry with direct slurry sample introduction