INVESTIGADORES
SOLDATI Analia Leticia
congresos y reuniones científicas
Título:
Trace elemental determination of teas used for shaman from Amazon area by neutron activation analysis
Autor/es:
NASCIMIENTO JÄHNKE, SAMARA; SOLDATI, ANALIA L.; SOUND, IRIS; VICENTE VILAS, VÍCTOR; BAUMANN, WOLFRAM
Lugar:
Río de Janeiro, Brasil
Reunión:
Conferencia; Nuclear Analytical Methods in Life Sciences (NAMLS08); 2005
Resumen:
Medicinal
plants, and galenic forms (decocts or extracts) obtained from these natural
drugs, have been used for many centuries in popular medicine, and are
effectively applied even nowadays by ill people, who try to cure themselves.
Medicinal plants contain considerable amounts of mineral constituents. In
particular, the presence of essential elements (incl. Mg, Mn, Zn, and many
others) is a prerequisite for correct growth and development of a plant. This
study is focused on the medicinal part of the plant extracted with hot water
(tea). Four species common in Brazil
have been selected: Jambü (Spilanthes oleracea) - Asteraceae; Beldroega (Portu/aca oleracea) - Portulacaceae; Alfavaca (Ocimum
gratissimum) - Labiatae, Xicoria-de-peixe {Eryngium foetidum) - Apiaceae. The extracts of these
plants were analysed by INAA (Instrumental Neutron Activation Analysis) and
HPCL-ICP-MS (Inductively Coupled Plasma-Mass Spectrometry). Further
determination of metal species will be done by ESI-MS (Electro spray Ionization
Mass Spectrometry)