[light]

Silly question here  :1eye: . I can not figure out how they get:

500pmols/µl = 500µM

My calculation shows this:

(500pmols/10^6)/1ul=5*10^-4uM. This means it should be 5*10^-4uM and not 500µM according to this formula: umol/ul=uM.

Hope for any inputs ASAP.

Thank you.

[Borek]

pmol = 10^-12 mol

µL = 10^-6 L

pmol/µL = 10^-12 mol/10^-6 L = 10^-6 mol/L = µmol/L = µM

500 pmols/µl = 500 µM