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RAPID NON‐DESTRUCTIVE DETERMINATION OF FLUORINE IN SEVENTY‐ONE GEOLOGICAL AND OTHER REFERENCE SAMPLES USING FAST‐NEUTRON ACTIVATION ANALYSIS
Author(s) -
RANDLE Keith,
CROUDACE Ian W.
Publication year - 1989
Publication title -
geostandards newsletter
Language(s) - English
Resource type - Journals
eISSN - 1751-908X
pISSN - 0150-5505
DOI - 10.1111/j.1751-908x.1989.tb00466.x
Subject(s) - fluorine , neutron activation analysis , neutron , deuterium , radiochemistry , irradiation , neutron temperature , chemistry , neutron capture , neutron activation , analytical chemistry (journal) , materials science , nuclear physics , physics , chromatography , organic chemistry
The fluorine concentration in seventy‐one reference samples of geological interest has been determined using fast‐neutron activation analysis. The reaction involved [ 19 F(n, α) 16 N] uses accelerator‐derived neutrons produced by bombarding a Be target with 3 MeV deuterons. The gamma radiation associated with the decay of 16 N (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.