Author:
Chiswell R. K.,Jones G. B.,Brodie J.
Abstract
A new method of determining phosphorus in sea water, using iron-impregnated
strips of filter paper, was investigated and compared with standard
colorimetric methods of phosphorus analysis. Laboratory experiments were
undertaken to determine the number of iron strips required to extract
phosphorus from sea water, the length of time a strip needed to adsorb all P
from solution, the reproducibility of the method, and whether the strips could
measure P adsorbed to different particles. Field studies were carried out with
iron strips in Cleveland Bay and the Herbert estuary, and comparisons were
made with concentrations of dissolved, particulate and organic phosphorus
determined by standard techniques. The iron-strip method was shown to work
well under laboratory conditions, but the field studies showed varying results
for the different environments tested. Generally, most of the dissolved
inorganic phosphorus present in sea water was taken up by the strips. The iron
strips also took up a proportion of other phosphorus fractions in sea water,
but the nature of this uptake appears to vary with environmental conditions.
Subject
Ecology,Aquatic Science,Ecology, Evolution, Behavior and Systematics,Oceanography
Cited by
5 articles.
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