Procedure
Make citrate gold nanoparticles
- 1.158mL of 10mM HAuCl4 added to 50mL of water
- Heat solution until it boils
- 0.5mL of 10mg/mL citrate sodium added to solution and heated until color changes from dark blue to red
- Making HAuCl4
- Add 0.0413g HAuCl3 to 10mL volumetric flask
- Making sodium citrate solution
- Add 0.250g sodium citrate into 25mL volumetric flask
Determine the size of the nanoparticle solution
Data
- We heated the above solution and it did not turn blue
- Possible that not enough gold was added
- We then made a new solution where we added 2mLs of 10.48mM gold solution
- The solution turned blue and then red after the sodium citrate was added
|