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Levels of ochratoxin A in serum from urban and rural Portuguese populations and...
Lino, C. M.; Baeta, M. L.; Henri, M.; Dinis, A. M. P.; Pena, A. S.; Silveira, M. I. N.Urban and rural population exposure to ochratoxin A (OTA) in central zone of Portugal was investigated in three places: Coimbra, Verride and Ereira. ; http://www.sciencedirect.com/science/article/B6T6P-4PYYTY1-6/1/d92ebdd35d9b9545c0b4cc338410924b
Validation of an Analytical Methodology for Determination of Oxytetracycline an...
Pena, A.; Pelantova, N.; Lino, C. M.; Silveira, M. I. N.; Solich, P.An analytical method for the determination of OTC and TC residues in honey was developed. Sample treatment involves an extraction in EDTA-McIlvaine buffer, followed by a solid-phase cleanup step. With regard to the cleanup procedure, different SPE cartridges were evaluated and the results presented. The method was validated according to the guidelines laid down by the 2002/657/EC European Decision parameters: ...
Survey of caffeine levels in retail beverages in Portugal
Pena, A.; Lino, C.; Silveira, M. I. N.The caffeine content of 85 retail beverage samples purchased from local supermarkets between 1995 and 2004 was determined. The potential intake of caffeine through the consumption of these beverages (but excluding coffee) was estimated for students of the University of Coimbra, Portugal. The caffeine content of the beverages ranged from 47.5 to 282.5?mg?l-1 for teas, from 20.1 to 47.2?mg?l-1 for tea extracts sa...
Determination of organochlorine pesticide residues in honey from the central zo...
Blasco, C.; Lino, C. M.; Picó, Y.; Pena, A.; Font, G.; Silveira, M. I. N.In this study nine organochlorine pesticide residues ([alpha]-, [beta]-, and [gamma]-hexachlorocyclohexane (HCH), hexachlorobenzene (HCB), aldrin, p,p'-DDE, p,p'-DDD, o,p'-DDT, and p,p'-DDT) in forty nine samples of honey collected from markets of Portugal and Spain during 2001 and 2002, respectively, were evaluated. For this evaluation, three analytical procedures were studied. The analytical procedure, based ...
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