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The study of 14 C penetration into filters in primary productivity measurements using double side counting
Author(s) -
Theodorsson Pall
Publication year - 1975
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1975.20.2.0288
Subject(s) - geiger counter , penetration (warfare) , counting efficiency , physics , optics , materials science , chemistry , analytical chemistry (journal) , mathematics , chromatography , operations research , detector
The 14 C‐labeled assimilated organic matter penetrates into filters when primary productivity is measured but does not lie in a thin layer on the surface as has been assumed. This has been demonstrated by counting the filters from both sides with a Geiger‐Müller counter and confirmed by measuring the counting efficiency of individual filters. When the double side counting indicates deeper penetration, the Geiger‐Müller efficiency decreases as expected.