Animal feeding stuffs. Determination of cadmium and lead by graphite furnace atomic absorption spectrometry (GF-AAS) after pressure digestion

2007 ◽  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Graphite Furnace Atomic Absorption ◽  
Animal Feeding ◽  
Gf Aas ◽  
Cadmium And Lead

scholarly journals Determination of cadmium and lead in beverages after leaching from pewter cups using graphite furnace atomic absorption spectrometry

Talanta ◽  
2011 ◽  
Vol 85 (1) ◽  
pp. 681-686 ◽  
Author(s):  
Morgana B. Dessuy ◽  
Maria Goreti R. Vale ◽  
Bernhard Welz ◽  
Aline R. Borges ◽  
Márcia M. Silva ◽  
...  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Graphite Furnace Atomic Absorption ◽  
Cadmium And Lead

Determination of manganese and nickel in slurry sampling by graphite furnace atomic absorption spectrometry

2008 ◽  
Vol 86 (4) ◽  
pp. 312-316 ◽  
Author(s):  
Luciano Almeida Pereira ◽  
Simone Soares de O. Borges ◽  
Maurício Costa Castro ◽  
Waldomiro Borges Neto ◽  
Cláudia Carvalhinho Windmöller ◽  
...  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Marine Sediment ◽  
Graphite Furnace ◽  
Correlation Coefficients ◽  
Absorption Spectrometry ◽  
Graphite Furnace Atomic Absorption ◽  
Four Levels ◽  
Gf Aas

Methods for the determination of manganese and nickel in lake and marine sediment slurries by graphite furnace atomic absorption spectrometry using permanent modifiers are proposed. The slurries were maintained homogeneous with air bubbling with an aquarium pump. For manganese, the best modifier was ruthenium permanent with mo of 0.9 pg and of 1.0, 1.2, 1.5, and 1.8 pg, for Rh, without modifier, Ir, and Zr, respectively. For nickel, the best modifier was rhodium permanent with mo of 33 pg, followed by 85, 120, 132, and 240 pg, without modifier, Zr, Ir, and Ru, respectively. After determining manganese and nickel in two certified marine sediment samples (n = 10) from NRCC, PACS-2, and MESS-2, and in the San Joaquin 2079 soil, the results agreed at the confidence level of 95% with the certified value for all analytes studied using aqueous calibration. Calibration curves of all analytes had correlation coefficients R2 higher than 0.99. Recovery studies made in four levels for each analyte in sediments from Lake Pampulha showed acceptable values. The limits of detection (LODs) were 4.0 and 0.9 µg L-1 for manganese and nickel, respectively.Key words: manganse, nickel, sediments, GF AAS.

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