2025-03-29https://repository.covenantuniversity.edu.ng/handle/123456789/37387Commercially available samples of Nigerian lager beers and bottled palm wine, and of root cuttings of medicinal plants, assayed for volatile N-nitroso compounds and nitrosatable entities, respectively, by chromatographic, chemiluminescence, colorimetric, derivatisation and nitrosation methods, contained nitrosodimethylamine (0.2–2.3 μg/kg; mean, 0.9 μg/kg)application/pdfQH301 BiologyArticle