The short answer is yes.
The long answer is, yes but it depends on how your cells got bolded.
If the bold format is due to the cell's font property being set to "Bold" (such as when you click on Format > Cells > Font Tab) then
You will need a user defined function in VBA to construct a formula to identify the bold property.
Otherwise if the font is bold due to conditional formatting then
you can get by with a formula that tests for the same condition in the subject cell as does the conditional formatting.
So, clarify what you really have and someone can assist with a formula that is appropriate for your situation.