Determination of rare earth elements in fern leaves using instrumental neutron activation analysis

Takada, Jitsuya; Sumino, T.; Nishimura, K.; Tanaka, Yoshiko; Akaboshi, Mitsuhiko

doi:10.1007/bf02164811

Cited by 10 publications

(1 citation statement)

References 6 publications

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“…this sample seems to be a case with no Ce anomaly. REE values of ferns from Japan have been published by Takada et al (1996); these concentrations are about 100 times higher than those of the fern from CHA, but have the same exceptionally steep distribution pattern as shown in Figure 4. These examples suggest that the characteristic distribution patterns revealed by the present work may also be found worldwide, and in different species.…”

Section: Plant Species At Other Sitesmentioning

confidence: 66%

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et al. 1998

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Concentrations of the rare earth elements (REEs) La, Ce, Nd, Sm, Eu, Gd, Tb, Yb and Lu were determined in leaves of 6 plant species (Norway spruce, silver fir, maple, ivy, blackberry, and wood fern), and in pertinent soils and soil extracts, also taken from the same site. The distribution of the individual REEs in plants showed little or no agreement with that in the soil or the soil extracts. Ce had a negative anomaly with respect to the soil in all plants. The REE distribution patterns of fir and spruce were almost identical, but differed profoundly from that of the other species. In most cases, concentration ratios between species were a smooth function of the atomic number of the REE. Very similar results were obtained at 2 additional sites.

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Section: Plant Species At Other Sitesmentioning

confidence: 66%

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et al. 1998

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Determination of rare earth and other elements in standard biological samples by ICP-MS and activation analysis

Kawamoto

Takada

Tanaka

et al. 1999

J Radioanal Nucl Chem

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Various rare earth elements (REEs) in standard samples supplied by the IAEA namely mussel (IAEA-142) and lichen (IAEA-336) were examined by ICP-MS and INAA. For ICP-MS, 200 mg each of the samples were dissolved in cone. nitric acid using a microwave sample-preparation system. After repeated concentration-dilution procedures (final volume; 10-20 ml), 1 ml of the sample was supplied for assay. La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Yb could be detected in the order of magnitude of 10 -3 ng/g. Activation analysis carried out using 300 mg of the sample powders failed to detect REEs except La, Ce, Sm and Eu because of a strong interference due mainly to 24Na and 32p induced in the samples by irradiation. The REE patterns (NASC-normalized) obtained for both the organisms are of the same in their shapes except for all the values for sea animal mussel which are somewhat higher than those for land plant lichen. However, we found a large difference in the other elements contents between the two organisms. For example, Na, CI, Mg, K, and Ca contents in mussel are about 26, 7, 4.5, 3.5, and 2 times, those in lichen. As the concentrations in the sea water for these elements is from 102 (K and Ca) to 103 (Na, CI and Mg) order of magnitude higher than in the land water, the result seems reasonable to assume that the higher the concentration of the element around the organisms the higher its content in the organisms.

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Analysis by nuclear reactions and activation A current bibliography

Bujdosó

1999

J Radioanal Nucl Chem

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Determination of rare earth elements in fern leaves using instrumental neutron activation analysis

Cited by 10 publications

References 6 publications

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Determination of rare earth and other elements in standard biological samples by ICP-MS and activation analysis

Analysis by nuclear reactions and activation A current bibliography

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