The influence of seasonal changes in the concentration of trace elements in liver tissue of various wild animals determined by instrumental neutron activation analysis

Turkstra, J.; Harthoorn, A. M.; Beukes, P.J.L.; Brits, R.J.N.

doi:10.1007/bf02520553

Cited by 15 publications

(1 citation statement)

References 5 publications

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“…It makes it possible simultaneously to identify a large number of elements, including those which are rarely included in studies, on account of their extremely small amounts in biological material, and is comparable with other methods of identification of certain trace elements (Turkstra et al, 1977). The suitability of the chemiluminescence method in physiological and ecological studies on small mammals has been proved by the example of identifying oxidation-reduction activity in organs of Sorex araneus (Malzahn, 1978).…”

Section: Discussionmentioning

confidence: 99%

Postnatal changes in trace elements and in oxidation-reduction activity in laboratory bank voles

Malzahn¹

1983

Acta Theriol.

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, 1983 : Postnatal changes in trace elements and in oxidationreduction activity in laboratory bank voles. Acta theriol., 28, Examination was made of the concentrations of 10 trace elements (Fe, Zn, Co, Se, Sb, Eu, Cr, Hg, Sc and Ce) in the liver, kidneys and heart of the bank vole, Clethrionomys glareolus (Schreber, 1780) from spring and autumn generations, during the postnatal development (1-60 days of life). The voles originated from the 8-12th inbred generation kept under laboratory conditions. Two types of elements were distinguished, differing as to their contents in the dry mass of vole organs from compared generations of the same age. Elements of type I (Fe, Co, Se, Sc) were found in greater amounts in organs of autumn generation than spring generation voles, and elements of type II (Sb, Zn, Eu) -in voles of the spring than autumn generation. Maximum concentrations of elements occur in the organs of day-old or 10 day old voles, after which they decrease, during the period of development in the nest, parallel t.o changes in the oxidation-reduction activity of the organs. The activity of organs during postnatal development decreases from a high level to the low level characteristic of adult animals and reached by voles about the 30th day of life, being maintained to at least the 240th day of life. Autumn generation voles have a higher level of activity after birth, but as from the 60th day of life the activity of spring generation vole organs is greater then in those of the autumn generation. The reverse differences were found between wild voles of seasonal generations in comparison with laboratory voles.[Mammals Res. Inst., Polish Acad. Sci., Poland]

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Section: Discussionmentioning

confidence: 99%

Postnatal changes in trace elements and in oxidation-reduction activity in laboratory bank voles

Malzahn¹

1983

Acta Theriol.

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Entwicklungsstand und Bedeutung der Aktivierungsanalyse

Kriváň

1979

Angew. Chem.

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Die Aktivierungsanalyse ist eine der bedeutendsten Methoden für die Spurenanalyse der Elemente und Isotope. Ein besonderer Vorteil der Aktivierungsanalyse ist, daß sie simultane Multielementbestimmungen mit sehr hohen Nachweisvermögen ermöglicht, die für viele Elemente noch unterhalb des ppb‐Bereiches liegen. bei einigen Elementen können noch Mengen in der Größenordnung 10−14 bis 10−15 g bestimmt werden. Bei der Aktivierungsanalyse fallen einige Quellen systematischer Fehler, hauptsächlich die durch den Blindwert verursachten, weg, die sich bei allen anderen spurenanalytischen Verfahren auswirken. Als Nachteil kann sich der Umgang mit Radioaktivität, die Abhängigkeit von Großgeräten für Bestrahlungen sowie die manchmal notwendige lange Bestrahlungs‐ und Abklingzeit erweisen. Wegen ihrer Leistungsfähigkeit findet die Aktivierungsanalyse Anwendung auf allen Gebieten, wo kleinste Elementmengen relevant sind, von der Werkstofforschung über die Medizin bis zur Archäologie. Eine Steigerung der Leistungsfähigkeit und Erweiterung der Anwendungsmöglichkeiten liegt in der Entwicklung neuer Bestrahlungsquellen, Aktivierungstechniken, Meßsysteme und Trennverfahren.

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Activation Analysis—Its Present State of Development and Its Importance as an Analytical Tool

Kriváň

1979

Angew. Chem. Int. Ed. Engl.

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Activation analysis is one of the most important methods available for the determination of traces of elements and of isotopes. One special advantage of activation analysis is its ability to cope with the simultaneous determination of many elements with very high detection sensitivity-for many elements lying below the ppb level. In some cases as little as 10-l4-lOl 5 g of an element can be detected. A number of sources of systematic errors common to other analytical procedures, mainly those caused by the blank, are eliminated in activation methods. The disadvantages may be seen as the inconvenience of handling radioactive materials, the dependence on large irradiation facilities, and sometimes the unavoidably long irradiation and cooling periods. O n account of its unique capabilities activation analysis finds applications in all fields of endeavor where minute amounts of elements are of significance, from materials research through medicine to archaeology. Further improvements in .performance and increases in scope are seen to lie in the development of new radiation sources, activation techniques, measurement systems, and separation procedures. 0570-0833, 7910202-0123 S 02.5010

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The influence of seasonal changes in the concentration of trace elements in liver tissue of various wild animals determined by instrumental neutron activation analysis

Cited by 15 publications

References 5 publications

Postnatal changes in trace elements and in oxidation-reduction activity in laboratory bank voles

Postnatal changes in trace elements and in oxidation-reduction activity in laboratory bank voles

Entwicklungsstand und Bedeutung der Aktivierungsanalyse

Activation Analysis—Its Present State of Development and Its Importance as an Analytical Tool

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