『Abstract
By means of sequential extractions with Ca-NTA and EDTA, a separation
was performed between Fe(OOH)〜（原文は二重波、以下同じ）P and CaCO3〜
P in a few sediments; the remaining fraction, considered to be
organic phosphate, was quantified as well. We found that with
the commonly used method of extraction with NaOH and H2SO4, less Fe(OOH)〜Fe and much more CaCO3〜
P was found than with the chelating extractants. The organic phosphate
pool in live and dead algal material and in some mud samples was
partly hydrolysed and therefore recovered as inorganic phosphates
with classical extractions The difference between chelating extractants
and the classical ones is discussed』
Abbreviation
Introduction
Materials and methods
Chemical methods
Materials used
Results and discussion
References