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A simple pore‐water sampler for coarse, sandy sediments of low porosity
Author(s) -
Saager Paul M.,
Sweerts JeanPierre,
Ellermeijer Hans J.
Publication year - 1990
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.1990.35.3.0747
Subject(s) - centrifuge , porosity , environmental science , sampling (signal processing) , extraction (chemistry) , tube (container) , cartridge , filter (signal processing) , contamination , materials science , mineralogy , environmental chemistry , geology , chemistry , chromatography , composite material , metallurgy , computer science , ecology , physics , nuclear physics , computer vision , biology
A simple, inexpensive, and highly efficient centrifuge tube allows nearly complete extraction of interstitial water from coarse, sandy sediments with porosities as low as 32%. The method is fast (5 min), efficient (55–92% of the available water is obtained), reliable, and can be peformed on board ship at only 1,500 × g . The efficiency of the method permits a high sampling resolution (millimeter scale). The centrifuge tube is made of polyethylene and can be used for trace metal determinations after cleaning with acid. Due to a built‐in filter, pore waters are clean and need not be filtered afterward, thus reducing the risk of contamination and possible oxidation artifacts.