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  • 1
    Electronic Resource
    Electronic Resource
    FLUORINE ABUNDANCES OF TWENTY NINE GEOLOGICAL AND OTHER REFERENCE SAMPLES USING FAST-NEUTRON ACTIVATION ANALYSIS (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Geostandards and geoanalytical research 17 (1993), S. 0 
    Details
    ISSN: 1751-908X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: The fluorine content in twenty-nine reference samples of geological interest has been determined using a well tried and tested method which has been previously reported. The analytical method uses fast neutron activation involving the reaction 19F(n,a)16N and gamma spectrometry. Interferences have been found to be negligible for the experimental conditions used. The method involves minimal sample preparation, is rapid and can easily measure concentrations down to 5 parts per million in a 5 g sample.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1751-908X.1993.tb00139.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    RAPID NON-DESTRUCTIVE DETERMINATION OF FLUORINE IN SEVENTY-ONE GEOLOGICAL AND OTHER REFERENCE SAMPLES USING FAST-NEUTRON ACTIVATION ANALYSIS (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Geostandards and geoanalytical research 13 (1989), S. 0 
    Details
    ISSN: 1751-908X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: The fluorine concentration in seventy-one reference samples of geological interest has been determined using fast-neutron activation analysis. The reaction involved [19F(n, α) 16N] uses accelerator-derived neutrons produced by bombarding a Be target with 3 MeV deuterons. The gamma radiation associated with the decay of 16N (t1/2 = 7.13 s) is counted and for the irradiation conditions used there are no serious interferences. The advantages of this technique over other schemes of fluorine determination are its simple procedure for sample preparation, speed, high sensitivity and non-destructiveness. A comparison of the data obtained with those in the literature is highly favourable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1751-908X.1989.tb00466.x
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  • 3
    Electronic Resource
    Electronic Resource
    The determination of calcium in faecal samples by instrumental fast neutron activation analysis (1980)
    Springer
    European journal of nuclear medicine 5 (1980), S. 261-266 
    Details
    ISSN: 1619-7089
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A method is described for the determination of calcium in faecal material by a purely instrumental technique, namely fast neutron activation analysis. The major advantage of the technique over existing methods is that it requires minimal sample preparation. In addition, only a single standard is used and the method is also fairly rapid and simple. The method is well suited to the routine analysis of large numbers of samples and the results are shown to be comparable with atomic absorption spectrophotometry in accuracy. Finally, the technique can be extended to include the determination of several other elements providing a standard for each element is included.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00271909
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    Paper (German National Licenses)
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