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---------- Forwarded message ----------
Date: Sat, 10 May 1997 08:39:34 -0700
From: Mike Shifflet <shiffty at ptd_net>
To: Aquatic-Plants at actwin_com
Subject: phosphate determination
I am an analytical chemist and I have been working with a
colorimeteric method to determine phosphate in water. The method reacts
a solution of ammonium molybdate, bismuth subnitrate and ascorbic acid
with phosphate to form a blue color. What I sould like to know is what
is the reaction that forms the blue color? If you know of a reference
could you let me know.
Thanks in advance.
shiffty at ptd_net