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RAPID REPRESENTATIVE SAMPLING OF SOIL GASES AND THEIR DETERMINATION BY MASS SPECTROMETRY
Author(s) -
ROBERTSON G. W.,
BRACEWELL J. M.
Publication year - 1979
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1979.tb01017.x
Subject(s) - sampling (signal processing) , mass spectrometry , soil water , environmental science , atmosphere (unit) , volume (thermodynamics) , chemistry , environmental chemistry , soil gas , trace gas , analytical chemistry (journal) , soil science , meteorology , physics , chromatography , organic chemistry , quantum mechanics , detector , optics
Summary The use of a portable field probe for sampling soil gas gives the degree of replication necessary to allow for the local variability of soil gas composition over short distances, and mass spectrometry provides a quick and efficient method of analysis for gases at concentrations above 0.1% by volume. These methods can conveniently be combined and their use is illustrated by the determination of N 2 , O 2 , Ar, CO 2 and CH 4 in two soils having impeded gaseous exchange with the atmosphere.