Option-1: If you are preparing the graphene oxide (GO) using a modified Hummer's method (step-1) you need to obtain the pH of the GO dispersion close to 7 through centrifugation. Step-2: Now, you have to measure the mass of 1 ml GO dispersion to find the mass loading of the measured GO dispersion.
Step-3: Then, you need to add water (DI) into the GO solution in such a way so that you can have 1mg/ml GO dispersion.
** If the mass loading of the dispersion becomes under 1mg/ml, you need to centrifuge the GO dispersion and collect the supernatant brownish slurry only.
Now again, you need to go for Step-2.
Option-2: Dissolve 1mg graphene oxide (GO) in 1 ml DI water.
You may start with GO dry powder and work with the std dilution. Make sure to sonicate GO during the dissolution in DI water.
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