Resumo
É proposto um sistema simples para mineralização, por via úmida, de amostras de alimentos contendo matéria orgânica. Foram testados vários tipos de alimentos e constatou-se que a aparelhagem apresenta eficiência e vantagem em relação aos métodos normalmente utilizados para destruição de matéria orgânica nas determinações de contaminantes metálicos em alimentos.
Referências
1. BLACK, L.T. - Comparison of three atomic absorption techniques for determining metais in soybean oi!. J. Am. Oil Chem. Soc.,12: 88-91, 1975.
2. KAKULU, S.E.; OSINBAJO, O. & AYAYI, S.O. Comparison of digestion methods for trace metal determination in f'ish. Int. J. Environ , anal. Chem.,30(3): 209-17, 1987. Apud Food Sci. Teehnol. Abstr.20(1O), 1988-1OR5.
3. MENDEN, E.E.; BROCKMAN, D.; CHOUDHURY, H. & PETERING, H. G. - Dry ashing of animal tissues for atomic absorption spectrometric deterrnination of zinc, copper, cadmium, lead, iron, manganese, magnesium and calcium, Anal. Chem.,49 (11) : 1644-5, 1977.
4. METHODS for destruction of organic matter - Analyst, 85 :643-656, 1960.
5. PREER, R.J.; STEPHENS, R.E. & BLAND, c.w. - Sample preparation in determination of lead in garden vegetables by flame atomic absorption spectrophotometry. J. Assoc. Off. anal. Chem., 65(4): 1010-15, 1982.
6. SA TZGER, R.D.; BONNIN, E. & FRICKE, F.L. Development of a quality assurance program for determination of ultratrace background levels of lead and anodic stripping voltametry. J. Assoc. Off. anal. Chem.,67(6): 1138-40, 1984.
7. SERRA, T.M. & SERRANO, J.F.V. - Influence of phosphorus and calcium on flame atomic absorption spectrophotometric determination of lead in canned fish products. J. Assoc. Off. anal, Chem., 67(1): 186-7, 1984.
8. THE USE of 50 per cent hydrogen peroxide for the destruction of organic matter - Analyst, 92: 4037, 1967.
9. THE USE of 50 per cent hydrogen peroxide for the destruction of organic matter - Analyst, 101: 62-6, 1976.
10. THORNBURG, W. - Precautions in ashing techniques for lead determination in food. J. Assoc. Off. Anal. Chem., 65(4): 992-3, 1982.
2. KAKULU, S.E.; OSINBAJO, O. & AYAYI, S.O. Comparison of digestion methods for trace metal determination in f'ish. Int. J. Environ , anal. Chem.,30(3): 209-17, 1987. Apud Food Sci. Teehnol. Abstr.20(1O), 1988-1OR5.
3. MENDEN, E.E.; BROCKMAN, D.; CHOUDHURY, H. & PETERING, H. G. - Dry ashing of animal tissues for atomic absorption spectrometric deterrnination of zinc, copper, cadmium, lead, iron, manganese, magnesium and calcium, Anal. Chem.,49 (11) : 1644-5, 1977.
4. METHODS for destruction of organic matter - Analyst, 85 :643-656, 1960.
5. PREER, R.J.; STEPHENS, R.E. & BLAND, c.w. - Sample preparation in determination of lead in garden vegetables by flame atomic absorption spectrophotometry. J. Assoc. Off. anal. Chem., 65(4): 1010-15, 1982.
6. SA TZGER, R.D.; BONNIN, E. & FRICKE, F.L. Development of a quality assurance program for determination of ultratrace background levels of lead and anodic stripping voltametry. J. Assoc. Off. anal. Chem.,67(6): 1138-40, 1984.
7. SERRA, T.M. & SERRANO, J.F.V. - Influence of phosphorus and calcium on flame atomic absorption spectrophotometric determination of lead in canned fish products. J. Assoc. Off. anal, Chem., 67(1): 186-7, 1984.
8. THE USE of 50 per cent hydrogen peroxide for the destruction of organic matter - Analyst, 92: 4037, 1967.
9. THE USE of 50 per cent hydrogen peroxide for the destruction of organic matter - Analyst, 101: 62-6, 1976.
10. THORNBURG, W. - Precautions in ashing techniques for lead determination in food. J. Assoc. Off. Anal. Chem., 65(4): 992-3, 1982.
Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.
Copyright (c) 1989 Alice Momoyo Sakuma, Jorge José do Vale Oliveira, Odair Zenebon, Paulo Tiglea, Maria Anita Scorsafava
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