Abstract
DURING a series of experiments designed to determine the relative sizes of tropical pelagic phytoplankton labelled with carbon-14, it was noted that the retentive capacity of ‘AA Millipore’ membrane filters varied considerably in three experiments as shown by retention of passed material on a fine filter (Table 1). It seemed surprising that a membrane filter with a pore size of 0.8µ would pass significant amounts of carbon-14 activity, bound in phytoplankton.
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References
Steemann Nielsen, E., J. du Conseil, 18, 117 (1952).
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LASKER, R., HOLMES, R. Variability in Retention of Marine Phytoplankton by Membrane Filters. Nature 180, 1295–1296 (1957). https://doi.org/10.1038/1801295a0
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DOI: https://doi.org/10.1038/1801295a0
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