Table of Contents
Advertisement
TANNIN AND LIGNIN,
7.
Pipet 5.0 mL of
Sodium Carbonate
Solution into each
cell. Cap and invert
several times to mix.
Note: A blue color will
develop if tannins and/
or lignins are present.
continued
25 minutes
8.
Wait 25 minutes.
69-9
9.
Place the blank in
the cell holder.
Note: Use a 10-mL cell
for the blank and the
sample in bright
sunlight.
Hide quick links:
Advertisement
Table of Contents
