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A Simple Pore Water Hydrogen Diffusion Syringe Sampler
Author(s) -
Vroblesky Don A.,
Chapelle Francis H.,
Bradley Paul M.
Publication year - 2007
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.2007.00362.x
Subject(s) - syringe , simple (philosophy) , diffusion , hydrogen , materials science , environmental science , chemistry , thermodynamics , physics , engineering , mechanical engineering , organic chemistry , philosophy , epistemology
Abstract Molecular hydrogen (H 2 ) is an important intermediate product and electron donor in microbial metabolism. Concentrations of dissolved H 2 are often diagnostic of the predominant terminal electron‐accepting processes in ground water systems or aquatic sediments. H 2 concentrations are routinely measured in ground water monitoring wells but are rarely measured in saturated aquatic sediments due to a lack of simple and practical sampling methods. This report describes the design and development (including laboratory and field testing) of a simple, syringe‐based H 2 sampler in (1) saturated, riparian sediments, (2) surface water bed sediments, and (3) packed intervals of a fractured bedrock borehole that are inaccessible by standard pumped methods.