[Tybalt]

If I have a 50 ppm (ug/mL) of Silicon (Si) and I need 50 ppb (ug/L) how do I go about this?

[JGK]

If I have a 50 ppm (ug/mL) of Silicon (Si) and I need 50 ppb (ug/L) how do I go about this?

It's easier if you change the mass descriptor rather tham the volume one


ppm (µg/mL)   ppb (ng/mL)

50 ppm = 50, 000 ppb

what factor of dilution do you need to make?

[Tybalt]

I apologize but I didn't post the right question to begin with.  What I wanted to ask is:

If I have a stock standard of 1000 ppm of silicon (Si) and I wanted to make a 50 ppb solution of silica (silicon dioxide SiO2) how would I go about this?


Thanks for your help.