Determination of potassium-40 in some beer styles
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Essays on nuclear energy and radioactive waste management
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The radiation from radioactive isotopes of the natural
radioactive series of thorium (Th-232) and uranium (U-238 and U-235),
as well as radioactive potassium (K-40), are the major contributors of
natural terrestrial radiation. The K-40 is a radionuclide that occurs
naturally in a fixed ratio with the stable potassium. Potassium is an
essential element for humans and its concentration in the body is
controlled by metabolic processes. Beer is a highly widespread drink
and is consumed worldwide. One of the great characteristics of the
variety of beers, in their styles, is the possibility of using innumerable
ingredients in their production, such as different fruits, seasonings,
leaves and roots, grains, malts and hops, and the choice of ingredients
can interfere directly in their properties. The present study presents
the K-40 determination in beers with different styles applying the
technique of analysis by gamma spectrometry. Reference material
IAEA-327-Soil was analyzed for validation of the methodology. The
results differ mainly due to the different raw materials used in the
beer production.
Como referenciar
SMITH, RICARDO B.; VICENTE, ROBERTO; CHEBERLE, LUAN T.V.; ROSA, MYCHELLE M.L. Determination of potassium-40 in some beer styles. In: SMITH, RICARDO B. (org.). Essays on nuclear energy and radioactive waste management. 1 ed.. São Paulo, SP: Gênio Criador Editora, 2021. , cap. 8. p. 118-129. Disponível em: http://repositorio.ipen.br/handle/123456789/33816. Acesso em: 26 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.