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  • Articles: DFG German National Licenses  (18)
  • 1985-1989  (18)
Source
  • Articles: DFG German National Licenses  (18)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    X-ray crystallographic study of tetragonal and monoclinic β1-V2H (1986)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 42 (1986), S. 529-533 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108768186097756
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Temperature dependence of atomic thermal parameters of lead chalcogenides, PbS, PbSe and PbTe (1987)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 43 (1987), S. 1443-1445 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270187091509
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Instrumental photon activation analysis of environmental materials using the internal standard method (1987)
    Springer
    Journal of radioanalytical and nuclear chemistry 109 (1987), S. 237-246 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract In order to study effective applications of the photon activation analysis using the internal standard method, determinations of Cr, Co, Ni, Zn, As, Rb, Sr, Y, Zr, Nb, Sb, Cs, Ba, Ce and Pb in two marine sediments as environmental materials have been examined by the use of a personal computer-based gamma-ray spectrometer equipped with a micro-robot for sample changing. In these determinations, some major and minor constituent elements in the samples were properly used as effective internal standards to check the roles with each other. As a result, it was demonstrated that accurate and precise determinations of the above 15 elements were achieved efficiently and favourably.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02117540
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    A new internal standard method coupled with the standard addition method for proton-induced X-ray emission analysis and its application determination of Cu, Zn, Rb and Sr in biological materials (1987)
    Springer
    Journal of radioanalytical and nuclear chemistry 116 (1987), S. 213-222 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A new internal standard method coupled with the standard addition method for PIXE analysis has been developed. In its basic principle, this method is characterized by that a suitable element present initially in the sample is used as an internal standard, and further the comparative standard is prepared by applying the standard addition method to the duplicated sample. When a sample contains Wa g of trace element A to be determined together with an element B which is usable as an internal standard, and when the comparative standard is prepared by adding an exactly known amount of element A, W a * g, to the duplicated sample, the absolute concentration of Wa can easily be determined by the following equation even if the above sample and comparative standard are irradiated separately by a different number of protons Wa=W a * /[(R*/R)-1] where R and R* are ratios of net photopeak counts due to the characteristic X-rays from the element A and B in the irradiated sample and comparative standard, respectively. The usefulness of the method was examined through determination of Cu, Zn, Rb and Sr in two biological materials, such as spinach and orchard leaves. As a result, this method was demonstrated to be sensitive, highly reproducible and reasonably accurate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02037224
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  • 5
    Electronic Resource
    Electronic Resource
    Instrumental photon activation analysis of soil samples using the internal standard method coupled with the standard addition method (1987)
    Springer
    Journal of radioanalytical and nuclear chemistry 116 (1987), S. 375-388 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Multielement determinations in the certified reference materials of soils (IAEA soil-5 and 7) have been studied fundamentally by instrumental photon activation analysis using the internal standard method coupled with the standard addition method. For the soil-5 sample, in the first place, the qualities of the comparative standards prepared by two processing methods were compared with each other. As a result, it was demonstrated that a highly accurate and precise multielement determination can be achieved easily by minor improvement in the processing method of the comparative standard to ensure homogeneity. The utility of this processing method for soil samples was proved further through a similar analysis in another soil sample (IAEA soil-7).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02035782
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  • 6
    Electronic Resource
    Electronic Resource
    Determination of carbon in copper by photon activation analysis (1988)
    Springer
    Journal of radioanalytical and nuclear chemistry 122 (1988), S. 175-182 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Determination of carbon in copper has been studied by photon activation analysis using 30 MeV bremsstrahlung. Chemical separation of carbon as CO2 was performed by the combustion method in a high flow rate of oxygen stream. It has been demonstrated that the trace amount of carbon in copper can be determined accurately and precisely, and that the detection limit is 0.02 μg.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02037176
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Determination of phosphorus in low-alloy steels by alpha-particle activation analysis (1989)
    Springer
    Journal of radioanalytical and nuclear chemistry 130 (1989), S. 243-250 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Determination of phosphorus in low-alloy steels by alpha-particle activation analysis has been studied in detail. After thick target yield curves of main interferences produced from the sample were measured as a function of alpha energy, the working standard for the present experiments was provided by applying the internal standard method coupled with the standard addition method under the most suitable bombarding conditions. Using the above working standard, it was demonstrated that the concentration of phosphorus in several low-alloy steels can be determined accurately and precisely by ordinary alphaparticle activation analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02041343
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Measurement of neutron emission from a SiO2−D2 system (1989)
    Springer
    Journal of radioanalytical and nuclear chemistry 137 (1989), S. 421-429 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract As a new fact, the neutron emission from the d-d nuclear fusion reaction in a SiO2−D2 system has been confirmed as well as that in the Ti−D2 system. By using a liquid scintillation detector, the neutron emissions from 8 sample materials consisted of SiO2, in which a small amount of deuterium was adsorbed chemically on the surface layer, were measured in the range of temperature between liquid nitrogen temperature and 400 °C. As a result, it was demonstrated that the neutron-emission reactions take place predominantly on the surface layer of sample material.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02168349
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Measurement of neutron emission from a Ti−D2 system (1989)
    Springer
    Journal of radioanalytical and nuclear chemistry 137 (1989), S. 411-420 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Neutron emission from the d-d nuclear fusion reaction, D/d,n/3He, in and on titanium metals /titanium sponge and the mixture of titanium powder/ trapped deuterium at about 1 atm has been ascertained by using a high resolution liquid scintillation detector. The neutron emissions from 11 samples which were provided under wide varieties of conditions were measured by temperature change in the range of liquid nitrogen temperature to 350 °C. As a result, it was proved that the neutron emission observed can be divided into two types, such as cooling and heating, by the evolved conditions. Moreover, by estimating the neutron emission efficiencies of samples, it was suggested that the neutron emission reactions are closely related to the deuterium trapped in the surface of titanium metal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02168348
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Highly accurate and precise multielement determination of environmental samples by means of photon activation using the internal standard method (1986)
    Springer
    Journal of radioanalytical and nuclear chemistry 100 (1986), S. 287-301 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract In order to examine effective applications of the newly developed internal standard method, determinations of Cr, Co, Ni, Zn, As, Rb, Sr, Y, Zr, Nb, Cs, Ce and Pb in three environmental materials, such as pond, lake and estuarine sediments, have been tried by means of photon activation. In these examinations, some major constituent elements in the above sediments were properly used as excellent and effective internal standards. In consequence, it was confirmed that highly accurate and precise determinations of the above 13 elements were achieved easily and favourably.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02037234
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    Paper (German National Licenses)
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