The determination of carbon,nitrogen and oxygen in gases by neutron time-of-flight spectrometry |
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| Authors: | W. J. Naudé M. Peisach R. Pretorius P. J. Strebel |
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| Affiliation: | (1) Southern Universities Nuclear Institute, P. O. Box. 17, C. P. Faure, South Africa;(2) Present address: The Merensky Institute for Physics, University of Stellenbosch, C. P. Stellenbosch, South Africa;(3) Present address: The Department of Chemistry, University of Cape Town, C. P. Rondebosch, South Africa |
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| Abstract: | Carbon, nitrogen and oxygen were determined in gases by time-of-flight spectrometry of prompt neutrons from the respective reactions12C(d, n)13N,14N(d, n)15O and16O(d, n)17F, produced by a pulsed beam of deuterons of 2 MeV (for nitrogen) or 3 MeV. The analysis is non-destructive and requires about 15 min. per sample. The relative standard deviation for all three elements was about ±3%. Detection limits, using a total irradiation current of 20 millicoulombs, for carbon, nitrogen and oxygen, respectively, were 6·10−8 g, 2·10−7 g and 1.7·10−7 g per cm2 cross-sectional area of irradiating beam. |
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