NDLI: Determination of cadmium and lead in fresh meat by slurry sampling graphite furnace atomic absorption spectrometry

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Analytical Methods Vol - 3 Issue - 5

Analytical Methods Vol - 3 Issue - 4

Analytical Methods Vol - 3 Issue - 3

Analytical Methods Vol - 3 Issue - 2

Analytical Methods Vol -2

Analytical Methods Vol -1

Determination of cadmium and lead in fresh meat by slurry sampling graphite furnace atomic absorption spectrometry

Content Provider	Royal Society of Chemistry (RSC)
Author	Silva, Márcia Messias da Vale, Maria Goreti Rodrigues Damin, Isabel Cristina Ferreira Zmozinski, Ariane Vanessa Borges, Aline Rocha
Copyright Year	2011
Abstract	In this work a method for cadmium and lead determination in fresh meat based on slurry sampling graphite furnace atomic absorption spectrometry is proposed. The fresh meat samples were weighed directly into the autosampler cups of the spectrometer using a microbalance and the slurry was prepared using tetramethylammonium hydroxide (TMAH). The use of the response surface method for optimizing the slurry preparation has shown that it was possible to find the optimum zone in the experimental field of the variables under study. Calibration was performed against aqueous standards and a mixture of 0.05% v/v Pd + 0.03% v/v Mg + 0.05% v/v Triton X-100 was used as a modifier. The results obtained for cadmium and lead in two certified reference materials were statistically not different from the certified values on a 95% confidence level, indicating that calibration against aqueous standards is suitable for this application. A comparison of the results obtained by slurry sampling with the digestion method adopted by the Brazilian Ministry of Agriculture showed no significant differences between the results at the 95% confidence level. The positive results obtained in this work suggest that the application of this procedure in other element determinations is worthy of exploration.
Starting Page	1379
Ending Page	1385
Page Count	7
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	3
Issue Number	6
Journal	Analytical Methods
DOI	10.1039/c1ay05085k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Cadmium Jeffree Star Triton Graphite furnace atomic absorption Tetramethylammonium hydroxide Response surface methodology Spectrometer Ministry of Agriculture Microbalance Triton X-100
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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