Published 1991 | Version v1
Miscellaneous Metadata-only

Uses of energy dispersive x-ray fluorescence analysis in agronomic research

Creators

  • 1. Centro de Energia Nuclear na Agricultura (CENA), Piracicaba, SP (Brazil)
  • 2. TELEBRAS, Campinas, SP (Brazil). Centro de Pesquisas

Description

A preliminary study on the use of energy dispersive X-ray fluorescence analysis to estimate element composition in samples of agronomic interest samples (lake sediment, whole animal dried blood, calcined animal bone, animal muscle, fish homogenate, tomato leaves and wheat flour) was carried out. Pellets with 0.82 g.cm sup(-2) were excited by radioactive sources ( sup(55)Fe - 53.3 MBq, sup(236)Pu - 1.02 GBq and sup(241)Am - 3.7 GBq) and the characteristic X-rays were detected for 30 minutes with a Si(Li) detector. With the sup(55)Fe source it was possible to clearly detect simultaneously several peaks from elements of the samples, such as Si and Ti in lake sediment, P and Ca in bone, Ca in blood and K in all samples (except bone). Using another source, sup(235)Pu, and Fe, Zn, K and Ca in almost all samples, whereas with the sup(241)Am source it was possible to detect Ba peaks in sediment and bone, and Zr and Ce in sediment. (author)

Availability note (English)

Available from the Library of Comissao Nacional de Energia Nuclear, RJ, Brazil.

Additional details

Additional titles

Original title (Portuguese)
Emprego da analise por fluorescencia de raios-x com dispersao de energia na pesquisa agronomica

Publishing Information

Imprint Title
Proceedings of the 1. Brazilian Meeting on Nuclear Applications - v.2
Imprint Pagination
399 p.
Journal Page Range
p. 67-78.

Conference

Title
1. Brazilian Meeting on Nuclear Applications.
Original Conference Title
1. Encontro Nacional de Aplicacoes Nucleares
Dates
27-30 May 1991.
Place
Recife, PE (Brazil).

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
22087870
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
AGRICULTURE; AMERICIUM 241; BLOOD; IRON 55; LEAVES; MUSCLES; PLUTONIUM 238; QUANTITY RATIO; SEDIMENTS; SKELETON; X-RAY FLUORESCENCE ANALYSIS
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; AMERICIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BIOLOGICAL MATERIALS; BODY; BODY FLUIDS; CHEMICAL ANALYSIS; ELECTRON CAPTURE RADIOISOTOPES; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; INTERMEDIATE MASS NUCLEI; IRON ISOTOPES; ISOTOPES; MATERIALS; NONDESTRUCTIVE ANALYSIS; NUCLEI; ODD-EVEN NUCLEI; ORGANS; PLUTONIUM ISOTOPES; RADIOISOTOPES; SILICON 32 DECAY RADIOISOTOPES; SPONTANEOUS FISSION RADIOISOTO; X-RAY EMISSION ANALYSIS; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
Imprint:Anais do 1. Encontro Nacional de Aplicacoes Nucleares - v.2.