Define a sample-preparation procedure.

Time spent in careful sample-preparation usually pays off in higher-quality spectra. Now that you have thought about the properties of your sample, and have selected a suitable solvent, you can design the sample-preparation procedure. In most cases, this will be a straightforward dissolution of your compound, but you should also think about these questions:

What is the optimum concentration?

Is the sample sensitive to the presence of heat, light, air, or moisture?

Do you need to filter the solution?