User:Helen L. Slucher/Notebook/CHEM-572/2014/01/28

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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 UV/Vis Random Correct