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Shipboard comparison of micro‐ and minielectrodes for measuring oxygen distribution in marine sediments
Author(s) -
Helder Willem,
Bakker Joop F.
Publication year - 1985
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.1985.30.5.1106
Subject(s) - sediment , microelectrode , electrode , environmental science , current (fluid) , work (physics) , oceanography , environmental chemistry , geology , mineralogy , chemistry , engineering , geomorphology , mechanical engineering
We have compared the shipboard performance of laboratory‐made microelectrodes (o.d., 5–10 µ m; Pt‐electrode tip, 2–8 µ m) with a commercially available minielectrode (o.d., 700 µ m; Pt‐electrode tip, 35–40 µ m) for measuring oxygen distributions in marine sediment. The performance of the two types of electrodes was similar. The general availability, the relative ease of modifications necessary for work on marine sediment, the rugged construction, and the high current output (∼ 5,000 pA) make the minielectrodes satisfactory for measuring O 2 distributions in marine sediments.