The formula for calculating concentration in nanomolar (nM) from nanogram per milliliter (ng/mL) is:
\[ nM = \frac{(ng/mL \times MW)}{1000} \]
Where:
ng/mL to nM is a conversion from nanograms per milliliter to nanomolar. This is often used in scientific research, particularly in the fields of chemistry and biology, to convert between these two units of concentration. The conversion factor depends on the molecular weight of the substance in question.
Let's assume the following values:
Using the formula to calculate the concentration in nanomolar:
\[ nM = \frac{(500 \times 180)}{1000} = 90,000 \text{ nM} \]
The concentration is 90,000 nM.