Once the CTAB solution is completely dissolved, using the ultrapure water, bring the volume to
155mL.
To do this, pour the CTAB solution in a graduated cylinder (>250mL), and then
add ultra pure water to bring the volume to 155mL. Gentle pouring will
avoid the formation of bubbles. The solution is now ready to use. Keep the CTAB
solution heated above 40oC to prevent precipitation of the CTAB. The solution
is now ready for use
Seed solution preparation
In a clean 20 mL glass vial, transfer 2.5 mL of the gold solution from the mother solution
into the glass vial and stir with a magnetic stirbar.
Add 2.5 mL of ultra pure water to the stirring gold solution from
previous step. The solution will be almost colorless
seed solution after dilution with 2.5 mL of water. The solution is almost colorless.
Transfer 5mL of the CTAB solution the stirring seed solution from
the previous step 2. The solution will turn a orange yellow color. Leave stirring
seed solution after dilution with 2.5 mL of water. The solution is almost colorless.
seed solution after dilution with 2.5 mL of water. The solution is almost colorless.
seed solution after dilution with 2.5 mL of water. The solution is almost colorless.
