Determination of selenium in infant foods using electrothermal atomic absorption spectrometry with direct slurry sample introduction
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منابع مشابه
Determination of lead in fish samples by slurry sampling electrothermal atomic absorption spectrometry.
Ultrasonic slurry sampling electrothermal atomic absorption spectrometry (USS-ETAAS) was been applied to the determination of lead in several fish samples. The influences of instrument operating conditions and slurry preparation on the signal were examined. Palladium and ammonium nitrate were used as the modifier to improve the signal. Since the sensitivity to lead in various fish slurries and ...
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Um método para determinação de arsênio em BaSO 4 por espectrometria de absorção atômica com aquecimento eletrotérmico e introdução de amostras sólidas (SoS-ET AAS) é descrito. Foram avaliados dois sistemas de correção de fundo (BG), deutério e efeito Zeeman (Z). Com o uso combinado de hidrogênio e Pd o BG foi diminuído. Resultados exatos e precisos foram obtidos usando Z-SoS-ET AAS. O desvio pa...
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A method is described for direct electrothermal atomic absorption spectrometric (ETAAS) determination of cadmium in untreated samples of wine. Pyrolytic graphite tubes and graphite tubes with standard L'vov pyrolytic platforms were tested as atomizers. The detection limit achieved was 0.08 microg L(-1) Cd in wine. The relative standard deviation for the concentration range from 0.2 to 10 microg...
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A determinação de Al, Cd, Co, Cr, Cu, Mg, Mn e Pb em nanotubos de carbono (CNTs) foi realizada por espectrometria de absorção atômica com atomização eletrotérmica e amostragem direta de sólidos (DSS-ET AAS, corretor de fundo com fonte de deutério). Foram avaliados os parâmetros de aquecimento, uso de Pd como modificador químico, possibilidade de calibração com soluções aquosas e massa máxima de...
متن کاملDirect Determination of Selenium in Blood and Urine Samples by Platform Furnace Atomic Absorption Spectrometry
The problems encountered in platform AAS determinations of selenium in biological fluids were recently reported by Carnrick et al. [1]. The presence of phosphates produces a spectral interference for the selenium determination at 196.0 nm, avoided by using Zeeman background correction. On the other hand, Hoenig and Van Hoeyweghen show that spectral interference of phosphates in animal tissues m...
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ژورنال
عنوان ژورنال: Open Chemistry
سال: 2004
ISSN: 2391-5420
DOI: 10.2478/bf02475577