3 documents found, page 1 of 1
Enantiomeric profiling and drug consumption estimation
Langa, I.; Ribeiro, A. R. L.; Ratola, N.; Gonçalves, V. M. F.; Tiritan, M. E.; Ribeiro, C.Background: Recent trends in new psychoactive substances (NPS) abuse have raised a serious public health issue that affects all communities. NPS comprise a wide range of substances, such as synthetic cathinones, synthetic cannabinoids, opioids, and benzodiazepines [1, 2]. These substances end up in the environment as excretion products or by direct disposal [3]. Wastewater-based epidemiology (WBE) combined with...
Worldwide interlaboratory study on the determination of ochratoxin A in differe...
Ratola, N.; Barros, P.; Simões, T.; Cerdeira, António; Venâncio, Armando; Alves, ArmindaInterlaboratory studies are decisive tools to help the validation of a specific analytical methodology or to assess the reproducibility of the use of different methods to analyze a given compound or compounds in certain sample matrices. In this work, homogeneous samples of two white wines (“White Wine” and “White Liqueur Wine”) and one red wine (“Red Fortified Wine”) from Portugal with different production tech...
Evolution of ochratoxin A content from must to wine in Port wine microvinification
Ratola, N.; Abade, E.; Simões, T.; Venâncio, Armando; Alves, ArmindaTo study the evolution of ochratoxin A (OTA) content from must to wine during the making of Port Wine, grapes from the five most common varieties of Port Wine were harvested and combined in equal percentages in order to perform microvinifications. Three sets of assays were studied: a blank (A), where the most common Port Wine-making process was used; in the second (B), a solution of OTA was added to the initial...